{
  "generated_at_utc": "2026-05-07T15:43:59Z",
  "forecast_start_utc": "2026-05-07T15:43:58Z",
  "forecast_end_utc": "2026-05-14T15:43:58Z",
  "source": "Cached CelesTrak OMM: iss_omm.json",
  "satellite": {
    "name": "ISS (ZARYA)",
    "catalog_number": "25544",
    "element_epoch_utc": "2026-05-07T04:00:47Z",
    "element_age_days_at_start": 0.49
  },
  "thresholds": {
    "minimum_altitude_deg": 10.0,
    "high_conjunction_altitude_deg": 60.0
  },
  "ephemeris_loaded": true,
  "site_count": 5,
  "pass_count": 121,
  "passes": [
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-07T20:48:03Z",
      "maximum_utc": "2026-05-07T20:51:26Z",
      "end_utc": "2026-05-07T20:54:46Z",
      "maximum_local": "2026-05-07T16:51:26-04:00",
      "max_altitude_deg": 59.41,
      "max_azimuth_deg": 136.17,
      "range_at_max_km": 490.8,
      "ground_track_distance_km": 234.2,
      "subpoint_at_max": {
        "latitude_deg": -32.71128,
        "longitude_deg": -69.2714,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 12.9,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T20:48:03Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 217.26,
        "range_km": 1522.1
      },
      "disappears": {
        "time_utc": "2026-05-07T20:54:46Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 55.22,
        "range_km": 1500.2
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-07T20:48:11Z",
      "maximum_utc": "2026-05-07T20:51:36Z",
      "end_utc": "2026-05-07T20:54:58Z",
      "maximum_local": "2026-05-07T17:51:36-03:00",
      "max_altitude_deg": 79.6,
      "max_azimuth_deg": 135.59,
      "range_at_max_km": 432.2,
      "ground_track_distance_km": 73.1,
      "subpoint_at_max": {
        "latitude_deg": -32.27023,
        "longitude_deg": -68.74982,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 11.3,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T20:48:11Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 222.76,
        "range_km": 1518.0
      },
      "disappears": {
        "time_utc": "2026-05-07T20:54:58Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 47.73,
        "range_km": 1494.7
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-07T20:48:19Z",
      "maximum_utc": "2026-05-07T20:51:39Z",
      "end_utc": "2026-05-07T20:54:57Z",
      "maximum_local": "2026-05-07T16:51:39-04:00",
      "max_altitude_deg": 53.29,
      "max_azimuth_deg": 136.05,
      "range_at_max_km": 521.7,
      "ground_track_distance_km": 292.5,
      "subpoint_at_max": {
        "latitude_deg": -32.13187,
        "longitude_deg": -68.58794,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 13.12,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T20:48:19Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 214.62,
        "range_km": 1517.3
      },
      "disappears": {
        "time_utc": "2026-05-07T20:54:57Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 57.44,
        "range_km": 1495.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-07T20:48:36Z",
      "maximum_utc": "2026-05-07T20:51:54Z",
      "end_utc": "2026-05-07T20:55:08Z",
      "maximum_local": "2026-05-07T16:51:54-04:00",
      "max_altitude_deg": 45.01,
      "max_azimuth_deg": 135.99,
      "range_at_max_km": 583.6,
      "ground_track_distance_km": 387.1,
      "subpoint_at_max": {
        "latitude_deg": -31.50161,
        "longitude_deg": -67.86061,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 13.63,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T20:48:36Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 210.57,
        "range_km": 1516.7
      },
      "disappears": {
        "time_utc": "2026-05-07T20:55:08Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 61.28,
        "range_km": 1494.9
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-07T20:48:32Z",
      "maximum_utc": "2026-05-07T20:51:55Z",
      "end_utc": "2026-05-07T20:55:15Z",
      "maximum_local": "2026-05-07T17:51:55-03:00",
      "max_altitude_deg": 63.62,
      "max_azimuth_deg": 135.07,
      "range_at_max_km": 471.6,
      "ground_track_distance_km": 196.5,
      "subpoint_at_max": {
        "latitude_deg": -31.43645,
        "longitude_deg": -67.78634,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 11.97,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T20:48:32Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 217.66,
        "range_km": 1518.3
      },
      "disappears": {
        "time_utc": "2026-05-07T20:55:15Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 52.63,
        "range_km": 1495.8
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-07T22:27:52Z",
      "maximum_utc": "2026-05-07T22:28:19Z",
      "end_utc": "2026-05-07T22:28:47Z",
      "maximum_local": "2026-05-07T18:28:19-04:00",
      "max_altitude_deg": 10.2,
      "max_azimuth_deg": 303.93,
      "range_at_max_km": 1481.0,
      "ground_track_distance_km": 1377.8,
      "subpoint_at_max": {
        "latitude_deg": -21.6371,
        "longitude_deg": -81.71398,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -5.86,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-07T22:27:52Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 296.07,
        "range_km": 1495.5
      },
      "disappears": {
        "time_utc": "2026-05-07T22:28:47Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 311.85,
        "range_km": 1491.9
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T11:50:33Z",
      "maximum_utc": "2026-05-08T11:53:37Z",
      "end_utc": "2026-05-08T11:56:43Z",
      "maximum_local": "2026-05-08T07:53:37-04:00",
      "max_altitude_deg": 32.0,
      "max_azimuth_deg": 51.49,
      "range_at_max_km": 753.3,
      "ground_track_distance_km": 599.4,
      "subpoint_at_max": {
        "latitude_deg": -25.57476,
        "longitude_deg": -66.02466,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.08,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T11:50:33Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 346.53,
        "range_km": 1505.7
      },
      "disappears": {
        "time_utc": "2026-05-08T11:56:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 116.26,
        "range_km": 1525.2
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T11:50:54Z",
      "maximum_utc": "2026-05-08T11:53:52Z",
      "end_utc": "2026-05-08T11:56:51Z",
      "maximum_local": "2026-05-08T07:53:52-04:00",
      "max_altitude_deg": 27.98,
      "max_azimuth_deg": 51.55,
      "range_at_max_km": 830.4,
      "ground_track_distance_km": 688.3,
      "subpoint_at_max": {
        "latitude_deg": -26.28096,
        "longitude_deg": -65.34438,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.59,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T11:50:54Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 350.63,
        "range_km": 1507.1
      },
      "disappears": {
        "time_utc": "2026-05-08T11:56:51Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 112.33,
        "range_km": 1525.0
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T11:51:11Z",
      "maximum_utc": "2026-05-08T11:54:02Z",
      "end_utc": "2026-05-08T11:56:54Z",
      "maximum_local": "2026-05-08T07:54:02-04:00",
      "max_altitude_deg": 24.81,
      "max_azimuth_deg": 51.78,
      "range_at_max_km": 907.5,
      "ground_track_distance_km": 773.5,
      "subpoint_at_max": {
        "latitude_deg": -26.73981,
        "longitude_deg": -64.89549,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.02,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T11:51:11Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 354.76,
        "range_km": 1510.4
      },
      "disappears": {
        "time_utc": "2026-05-08T11:56:54Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 108.61,
        "range_km": 1528.9
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T11:50:58Z",
      "maximum_utc": "2026-05-08T11:54:04Z",
      "end_utc": "2026-05-08T11:57:13Z",
      "maximum_local": "2026-05-08T08:54:04-03:00",
      "max_altitude_deg": 33.43,
      "max_azimuth_deg": 50.87,
      "range_at_max_km": 731.1,
      "ground_track_distance_km": 572.4,
      "subpoint_at_max": {
        "latitude_deg": -26.85669,
        "longitude_deg": -64.78025,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.82,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T11:50:58Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 344.64,
        "range_km": 1509.0
      },
      "disappears": {
        "time_utc": "2026-05-08T11:57:13Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 116.8,
        "range_km": 1527.5
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T11:51:26Z",
      "maximum_utc": "2026-05-08T11:54:24Z",
      "end_utc": "2026-05-08T11:57:24Z",
      "maximum_local": "2026-05-08T08:54:24-03:00",
      "max_altitude_deg": 27.99,
      "max_azimuth_deg": 50.93,
      "range_at_max_km": 831.5,
      "ground_track_distance_km": 689.1,
      "subpoint_at_max": {
        "latitude_deg": -27.76818,
        "longitude_deg": -63.86856,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.16,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T11:51:26Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 350.01,
        "range_km": 1508.1
      },
      "disappears": {
        "time_utc": "2026-05-08T11:57:24Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 111.66,
        "range_km": 1526.7
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T13:28:04Z",
      "maximum_utc": "2026-05-08T13:30:28Z",
      "end_utc": "2026-05-08T13:32:53Z",
      "maximum_local": "2026-05-08T09:30:28-04:00",
      "max_altitude_deg": 17.55,
      "max_azimuth_deg": 217.94,
      "range_at_max_km": 1144.4,
      "ground_track_distance_km": 1026.4,
      "subpoint_at_max": {
        "latitude_deg": -36.1331,
        "longitude_deg": -77.68452,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 25.11,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T13:28:04Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 262.49,
        "range_km": 1521.3
      },
      "disappears": {
        "time_utc": "2026-05-08T13:32:53Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 173.42,
        "range_km": 1531.3
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T13:28:01Z",
      "maximum_utc": "2026-05-08T13:30:40Z",
      "end_utc": "2026-05-08T13:33:20Z",
      "maximum_local": "2026-05-08T09:30:40-04:00",
      "max_altitude_deg": 20.43,
      "max_azimuth_deg": 217.79,
      "range_at_max_km": 1040.1,
      "ground_track_distance_km": 916.0,
      "subpoint_at_max": {
        "latitude_deg": -36.62488,
        "longitude_deg": -77.00176,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 24.33,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T13:28:01Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 268.51,
        "range_km": 1520.7
      },
      "disappears": {
        "time_utc": "2026-05-08T13:33:20Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 167.14,
        "range_km": 1532.0
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T13:27:56Z",
      "maximum_utc": "2026-05-08T13:30:46Z",
      "end_utc": "2026-05-08T13:33:38Z",
      "maximum_local": "2026-05-08T09:30:46-04:00",
      "max_altitude_deg": 23.51,
      "max_azimuth_deg": 217.9,
      "range_at_max_km": 949.5,
      "ground_track_distance_km": 817.6,
      "subpoint_at_max": {
        "latitude_deg": -36.89041,
        "longitude_deg": -76.62655,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 23.57,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T13:27:56Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 273.7,
        "range_km": 1524.0
      },
      "disappears": {
        "time_utc": "2026-05-08T13:33:38Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 162.06,
        "range_km": 1536.3
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T13:28:29Z",
      "maximum_utc": "2026-05-08T13:30:56Z",
      "end_utc": "2026-05-08T13:33:24Z",
      "maximum_local": "2026-05-08T10:30:56-03:00",
      "max_altitude_deg": 18.02,
      "max_azimuth_deg": 216.84,
      "range_at_max_km": 1128.2,
      "ground_track_distance_km": 1009.0,
      "subpoint_at_max": {
        "latitude_deg": -37.29034,
        "longitude_deg": -76.05236,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 25.4,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T13:28:29Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 262.48,
        "range_km": 1523.6
      },
      "disappears": {
        "time_utc": "2026-05-08T13:33:24Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 171.18,
        "range_km": 1533.7
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T13:28:27Z",
      "maximum_utc": "2026-05-08T13:31:11Z",
      "end_utc": "2026-05-08T13:33:58Z",
      "maximum_local": "2026-05-08T10:31:11-03:00",
      "max_altitude_deg": 22.0,
      "max_azimuth_deg": 216.68,
      "range_at_max_km": 991.4,
      "ground_track_distance_km": 863.4,
      "subpoint_at_max": {
        "latitude_deg": -37.90502,
        "longitude_deg": -75.14763,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 24.35,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T13:28:27Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 270.12,
        "range_km": 1521.9
      },
      "disappears": {
        "time_utc": "2026-05-08T13:33:58Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 163.2,
        "range_km": 1533.2
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T20:00:42Z",
      "maximum_utc": "2026-05-08T20:03:49Z",
      "end_utc": "2026-05-08T20:06:53Z",
      "maximum_local": "2026-05-08T16:03:49-04:00",
      "max_altitude_deg": 31.39,
      "max_azimuth_deg": 139.95,
      "range_at_max_km": 763.2,
      "ground_track_distance_km": 611.6,
      "subpoint_at_max": {
        "latitude_deg": -35.34649,
        "longitude_deg": -66.67583,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 21.23,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T20:00:42Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 205.04,
        "range_km": 1524.5
      },
      "disappears": {
        "time_utc": "2026-05-08T20:06:53Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 74.83,
        "range_km": 1504.7
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T20:00:45Z",
      "maximum_utc": "2026-05-08T20:04:00Z",
      "end_utc": "2026-05-08T20:07:13Z",
      "maximum_local": "2026-05-08T17:04:00-03:00",
      "max_altitude_deg": 40.19,
      "max_azimuth_deg": 138.95,
      "range_at_max_km": 635.1,
      "ground_track_distance_km": 455.1,
      "subpoint_at_max": {
        "latitude_deg": -34.8515,
        "longitude_deg": -66.02652,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 19.67,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T20:00:45Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 210.74,
        "range_km": 1521.0
      },
      "disappears": {
        "time_utc": "2026-05-08T20:07:13Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 67.03,
        "range_km": 1499.9
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T20:01:00Z",
      "maximum_utc": "2026-05-08T20:04:01Z",
      "end_utc": "2026-05-08T20:07:00Z",
      "maximum_local": "2026-05-08T16:04:01-04:00",
      "max_altitude_deg": 28.4,
      "max_azimuth_deg": 139.7,
      "range_at_max_km": 817.7,
      "ground_track_distance_km": 675.4,
      "subpoint_at_max": {
        "latitude_deg": -34.80711,
        "longitude_deg": -65.96895,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 21.58,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T20:01:00Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 201.79,
        "range_km": 1520.3
      },
      "disappears": {
        "time_utc": "2026-05-08T20:07:00Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 77.57,
        "range_km": 1500.7
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T20:01:23Z",
      "maximum_utc": "2026-05-08T20:04:15Z",
      "end_utc": "2026-05-08T20:07:05Z",
      "maximum_local": "2026-05-08T16:04:15-04:00",
      "max_altitude_deg": 24.52,
      "max_azimuth_deg": 139.49,
      "range_at_max_km": 907.5,
      "ground_track_distance_km": 776.0,
      "subpoint_at_max": {
        "latitude_deg": -34.22713,
        "longitude_deg": -65.22653,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 22.25,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T20:01:23Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 196.85,
        "range_km": 1519.4
      },
      "disappears": {
        "time_utc": "2026-05-08T20:07:05Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 82.19,
        "range_km": 1501.1
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T20:01:10Z",
      "maximum_utc": "2026-05-08T20:04:18Z",
      "end_utc": "2026-05-08T20:07:23Z",
      "maximum_local": "2026-05-08T17:04:18-03:00",
      "max_altitude_deg": 32.55,
      "max_azimuth_deg": 138.7,
      "range_at_max_km": 740.9,
      "ground_track_distance_km": 586.2,
      "subpoint_at_max": {
        "latitude_deg": -34.09254,
        "longitude_deg": -65.05675,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 20.53,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T20:01:10Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 204.89,
        "range_km": 1521.4
      },
      "disappears": {
        "time_utc": "2026-05-08T20:07:23Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 72.57,
        "range_km": 1501.0
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T21:38:07Z",
      "maximum_utc": "2026-05-08T21:40:24Z",
      "end_utc": "2026-05-08T21:42:40Z",
      "maximum_local": "2026-05-08T17:40:24-04:00",
      "max_altitude_deg": 17.0,
      "max_azimuth_deg": 306.47,
      "range_at_max_km": 1145.2,
      "ground_track_distance_km": 1031.3,
      "subpoint_at_max": {
        "latitude_deg": -25.40703,
        "longitude_deg": -79.23532,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 3.31,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T21:38:07Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 263.87,
        "range_km": 1510.9
      },
      "disappears": {
        "time_utc": "2026-05-08T21:42:40Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 349.26,
        "range_km": 1493.6
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T21:38:47Z",
      "maximum_utc": "2026-05-08T21:40:30Z",
      "end_utc": "2026-05-08T21:42:12Z",
      "maximum_local": "2026-05-08T18:40:30-03:00",
      "max_altitude_deg": 13.33,
      "max_azimuth_deg": 305.56,
      "range_at_max_km": 1309.0,
      "ground_track_distance_km": 1201.3,
      "subpoint_at_max": {
        "latitude_deg": -25.13046,
        "longitude_deg": -78.97334,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 1.71,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T21:38:47Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 274.9,
        "range_km": 1505.0
      },
      "disappears": {
        "time_utc": "2026-05-08T21:42:12Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 336.4,
        "range_km": 1491.9
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T21:38:15Z",
      "maximum_utc": "2026-05-08T21:40:38Z",
      "end_utc": "2026-05-08T21:43:00Z",
      "maximum_local": "2026-05-08T17:40:38-04:00",
      "max_altitude_deg": 17.97,
      "max_azimuth_deg": 306.42,
      "range_at_max_km": 1103.6,
      "ground_track_distance_km": 988.4,
      "subpoint_at_max": {
        "latitude_deg": -24.72446,
        "longitude_deg": -78.59203,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 3.41,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T21:38:15Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 261.48,
        "range_km": 1506.7
      },
      "disappears": {
        "time_utc": "2026-05-08T21:43:00Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 351.61,
        "range_km": 1489.0
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-08T21:38:47Z",
      "maximum_utc": "2026-05-08T21:40:52Z",
      "end_utc": "2026-05-08T21:42:55Z",
      "maximum_local": "2026-05-08T18:40:52-03:00",
      "max_altitude_deg": 15.4,
      "max_azimuth_deg": 305.78,
      "range_at_max_km": 1210.5,
      "ground_track_distance_km": 1099.8,
      "subpoint_at_max": {
        "latitude_deg": -24.09831,
        "longitude_deg": -78.01132,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 2.19,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T21:38:47Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 267.63,
        "range_km": 1506.6
      },
      "disappears": {
        "time_utc": "2026-05-08T21:42:55Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 344.03,
        "range_km": 1490.7
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-08T21:38:21Z",
      "maximum_utc": "2026-05-08T21:40:55Z",
      "end_utc": "2026-05-08T21:43:27Z",
      "maximum_local": "2026-05-08T17:40:55-04:00",
      "max_altitude_deg": 20.03,
      "max_azimuth_deg": 306.57,
      "range_at_max_km": 1029.7,
      "ground_track_distance_km": 910.3,
      "subpoint_at_max": {
        "latitude_deg": -23.93885,
        "longitude_deg": -77.86482,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 3.78,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-08T21:38:21Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 257.22,
        "range_km": 1506.9
      },
      "disappears": {
        "time_utc": "2026-05-08T21:43:27Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 356.07,
        "range_km": 1488.0
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T11:03:55Z",
      "maximum_utc": "2026-05-09T11:06:10Z",
      "end_utc": "2026-05-09T11:08:26Z",
      "maximum_local": "2026-05-09T07:06:10-04:00",
      "max_altitude_deg": 16.62,
      "max_azimuth_deg": 54.26,
      "range_at_max_km": 1171.5,
      "ground_track_distance_km": 1056.6,
      "subpoint_at_max": {
        "latitude_deg": -23.19536,
        "longitude_deg": -62.32253,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.71,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T11:03:55Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 12.57,
        "range_km": 1506.2
      },
      "disappears": {
        "time_utc": "2026-05-09T11:08:26Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 95.79,
        "range_km": 1520.9
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T11:04:26Z",
      "maximum_utc": "2026-05-09T11:06:26Z",
      "end_utc": "2026-05-09T11:08:26Z",
      "maximum_local": "2026-05-09T07:06:26-04:00",
      "max_altitude_deg": 14.79,
      "max_azimuth_deg": 54.37,
      "range_at_max_km": 1252.5,
      "ground_track_distance_km": 1140.6,
      "subpoint_at_max": {
        "latitude_deg": -23.94357,
        "longitude_deg": -61.64238,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.09,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T11:04:26Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 18.24,
        "range_km": 1506.8
      },
      "disappears": {
        "time_utc": "2026-05-09T11:08:26Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 90.5,
        "range_km": 1520.4
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T11:04:54Z",
      "maximum_utc": "2026-05-09T11:06:36Z",
      "end_utc": "2026-05-09T11:08:19Z",
      "maximum_local": "2026-05-09T07:06:36-04:00",
      "max_altitude_deg": 13.24,
      "max_azimuth_deg": 54.61,
      "range_at_max_km": 1332.5,
      "ground_track_distance_km": 1222.5,
      "subpoint_at_max": {
        "latitude_deg": -24.4403,
        "longitude_deg": -61.18422,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.56,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T11:04:54Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 24.39,
        "range_km": 1511.8
      },
      "disappears": {
        "time_utc": "2026-05-09T11:08:19Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 84.85,
        "range_km": 1523.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T11:04:17Z",
      "maximum_utc": "2026-05-09T11:06:37Z",
      "end_utc": "2026-05-09T11:08:59Z",
      "maximum_local": "2026-05-09T08:06:37-03:00",
      "max_altitude_deg": 17.5,
      "max_azimuth_deg": 53.7,
      "range_at_max_km": 1137.6,
      "ground_track_distance_km": 1020.7,
      "subpoint_at_max": {
        "latitude_deg": -24.48988,
        "longitude_deg": -61.13819,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -1.81,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T11:04:17Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 9.78,
        "range_km": 1508.5
      },
      "disappears": {
        "time_utc": "2026-05-09T11:08:59Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 97.49,
        "range_km": 1523.7
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T11:04:56Z",
      "maximum_utc": "2026-05-09T11:06:58Z",
      "end_utc": "2026-05-09T11:09:01Z",
      "maximum_local": "2026-05-09T08:06:58-03:00",
      "max_altitude_deg": 15.02,
      "max_azimuth_deg": 53.9,
      "range_at_max_km": 1243.2,
      "ground_track_distance_km": 1130.6,
      "subpoint_at_max": {
        "latitude_deg": -25.46791,
        "longitude_deg": -60.21856,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.3,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T11:04:56Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 16.99,
        "range_km": 1508.3
      },
      "disappears": {
        "time_utc": "2026-05-09T11:09:01Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 90.74,
        "range_km": 1522.2
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T12:39:43Z",
      "maximum_utc": "2026-05-09T12:42:46Z",
      "end_utc": "2026-05-09T12:45:50Z",
      "maximum_local": "2026-05-09T08:42:46-04:00",
      "max_altitude_deg": 29.54,
      "max_azimuth_deg": 221.75,
      "range_at_max_km": 803.5,
      "ground_track_distance_km": 655.9,
      "subpoint_at_max": {
        "latitude_deg": -33.35042,
        "longitude_deg": -75.37613,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.43,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T12:39:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 284.94,
        "range_km": 1516.1
      },
      "disappears": {
        "time_utc": "2026-05-09T12:45:50Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 158.46,
        "range_km": 1530.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T12:39:49Z",
      "maximum_utc": "2026-05-09T12:42:58Z",
      "end_utc": "2026-05-09T12:46:10Z",
      "maximum_local": "2026-05-09T08:42:58-04:00",
      "max_altitude_deg": 34.69,
      "max_azimuth_deg": 221.68,
      "range_at_max_km": 714.6,
      "ground_track_distance_km": 551.0,
      "subpoint_at_max": {
        "latitude_deg": -33.90121,
        "longitude_deg": -74.69606,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 15.79,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T12:39:49Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 289.51,
        "range_km": 1515.8
      },
      "disappears": {
        "time_utc": "2026-05-09T12:46:10Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 153.71,
        "range_km": 1531.0
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T12:39:51Z",
      "maximum_utc": "2026-05-09T12:43:06Z",
      "end_utc": "2026-05-09T12:46:23Z",
      "maximum_local": "2026-05-09T08:43:06-04:00",
      "max_altitude_deg": 40.57,
      "max_azimuth_deg": 221.72,
      "range_at_max_km": 640.1,
      "ground_track_distance_km": 455.8,
      "subpoint_at_max": {
        "latitude_deg": -34.22417,
        "longitude_deg": -74.29031,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 15.13,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T12:39:51Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 293.73,
        "range_km": 1519.3
      },
      "disappears": {
        "time_utc": "2026-05-09T12:46:23Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 149.65,
        "range_km": 1535.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T12:40:10Z",
      "maximum_utc": "2026-05-09T12:43:14Z",
      "end_utc": "2026-05-09T12:46:19Z",
      "maximum_local": "2026-05-09T09:43:14-03:00",
      "max_altitude_deg": 29.82,
      "max_azimuth_deg": 220.74,
      "range_at_max_km": 799.7,
      "ground_track_distance_km": 651.0,
      "subpoint_at_max": {
        "latitude_deg": -34.55444,
        "longitude_deg": -73.86982,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.96,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T12:40:10Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 284.21,
        "range_km": 1518.7
      },
      "disappears": {
        "time_utc": "2026-05-09T12:46:19Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 157.16,
        "range_km": 1533.2
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T12:40:18Z",
      "maximum_utc": "2026-05-09T12:43:30Z",
      "end_utc": "2026-05-09T12:46:44Z",
      "maximum_local": "2026-05-09T09:43:30-03:00",
      "max_altitude_deg": 36.91,
      "max_azimuth_deg": 220.64,
      "range_at_max_km": 684.0,
      "ground_track_distance_km": 512.7,
      "subpoint_at_max": {
        "latitude_deg": -35.25384,
        "longitude_deg": -72.96,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.11,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T12:40:18Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 290.15,
        "range_km": 1517.3
      },
      "disappears": {
        "time_utc": "2026-05-09T12:46:44Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 150.97,
        "range_km": 1532.4
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T19:13:33Z",
      "maximum_utc": "2026-05-09T19:16:06Z",
      "end_utc": "2026-05-09T19:18:38Z",
      "maximum_local": "2026-05-09T15:16:06-04:00",
      "max_altitude_deg": 19.07,
      "max_azimuth_deg": 143.88,
      "range_at_max_km": 1081.1,
      "ground_track_distance_km": 961.1,
      "subpoint_at_max": {
        "latitude_deg": -38.03485,
        "longitude_deg": -64.56036,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 28.6,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T19:13:33Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 191.91,
        "range_km": 1526.6
      },
      "disappears": {
        "time_utc": "2026-05-09T19:18:38Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 95.86,
        "range_km": 1511.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T19:13:57Z",
      "maximum_utc": "2026-05-09T19:16:18Z",
      "end_utc": "2026-05-09T19:18:39Z",
      "maximum_local": "2026-05-09T15:16:18-04:00",
      "max_altitude_deg": 17.25,
      "max_azimuth_deg": 143.62,
      "range_at_max_km": 1146.6,
      "ground_track_distance_km": 1030.8,
      "subpoint_at_max": {
        "latitude_deg": -37.54782,
        "longitude_deg": -63.83648,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 29.1,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T19:13:57Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 187.42,
        "range_km": 1521.7
      },
      "disappears": {
        "time_utc": "2026-05-09T19:18:39Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 99.74,
        "range_km": 1507.8
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T19:13:30Z",
      "maximum_utc": "2026-05-09T19:16:20Z",
      "end_utc": "2026-05-09T19:19:08Z",
      "maximum_local": "2026-05-09T16:16:20-03:00",
      "max_altitude_deg": 23.44,
      "max_azimuth_deg": 142.81,
      "range_at_max_km": 940.0,
      "ground_track_distance_km": 810.3,
      "subpoint_at_max": {
        "latitude_deg": -37.49714,
        "longitude_deg": -63.76217,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 27.12,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T19:13:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 198.57,
        "range_km": 1523.8
      },
      "disappears": {
        "time_utc": "2026-05-09T19:19:08Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 87.0,
        "range_km": 1506.3
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T19:14:28Z",
      "maximum_utc": "2026-05-09T19:16:31Z",
      "end_utc": "2026-05-09T19:18:33Z",
      "maximum_local": "2026-05-09T15:16:31-04:00",
      "max_altitude_deg": 14.88,
      "max_azimuth_deg": 143.44,
      "range_at_max_km": 1248.8,
      "ground_track_distance_km": 1137.3,
      "subpoint_at_max": {
        "latitude_deg": -37.03867,
        "longitude_deg": -63.09817,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 29.93,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T19:14:28Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 180.37,
        "range_km": 1520.8
      },
      "disappears": {
        "time_utc": "2026-05-09T19:18:33Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 106.41,
        "range_km": 1508.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T19:14:03Z",
      "maximum_utc": "2026-05-09T19:16:36Z",
      "end_utc": "2026-05-09T19:19:08Z",
      "maximum_local": "2026-05-09T16:16:36-03:00",
      "max_altitude_deg": 19.32,
      "max_azimuth_deg": 142.58,
      "range_at_max_km": 1069.3,
      "ground_track_distance_km": 949.2,
      "subpoint_at_max": {
        "latitude_deg": -36.82495,
        "longitude_deg": -62.79365,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 28.2,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T19:14:03Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 191.12,
        "range_km": 1523.2
      },
      "disappears": {
        "time_utc": "2026-05-09T19:19:08Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 94.01,
        "range_km": 1507.8
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T20:49:52Z",
      "maximum_utc": "2026-05-09T20:52:57Z",
      "end_utc": "2026-05-09T20:56:00Z",
      "maximum_local": "2026-05-09T16:52:57-04:00",
      "max_altitude_deg": 32.25,
      "max_azimuth_deg": 309.54,
      "range_at_max_km": 742.3,
      "ground_track_distance_km": 589.4,
      "subpoint_at_max": {
        "latitude_deg": -27.73436,
        "longitude_deg": -75.60873,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 12.26,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T20:49:52Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 244.46,
        "range_km": 1517.1
      },
      "disappears": {
        "time_utc": "2026-05-09T20:56:00Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 14.7,
        "range_km": 1494.0
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T20:50:13Z",
      "maximum_utc": "2026-05-09T20:53:04Z",
      "end_utc": "2026-05-09T20:55:54Z",
      "maximum_local": "2026-05-09T17:53:04-03:00",
      "max_altitude_deg": 25.0,
      "max_azimuth_deg": 308.55,
      "range_at_max_km": 889.0,
      "ground_track_distance_km": 757.1,
      "subpoint_at_max": {
        "latitude_deg": -27.40481,
        "longitude_deg": -75.27667,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 10.68,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T20:50:13Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 251.35,
        "range_km": 1512.5
      },
      "disappears": {
        "time_utc": "2026-05-09T20:55:54Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 5.95,
        "range_km": 1491.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T20:50:04Z",
      "maximum_utc": "2026-05-09T20:53:11Z",
      "end_utc": "2026-05-09T20:56:17Z",
      "maximum_local": "2026-05-09T16:53:11-04:00",
      "max_altitude_deg": 34.66,
      "max_azimuth_deg": 309.39,
      "range_at_max_km": 701.4,
      "ground_track_distance_km": 541.6,
      "subpoint_at_max": {
        "latitude_deg": -27.08404,
        "longitude_deg": -74.95641,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 12.49,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T20:50:04Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 242.32,
        "range_km": 1512.8
      },
      "disappears": {
        "time_utc": "2026-05-09T20:56:17Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 16.66,
        "range_km": 1489.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-09T20:50:25Z",
      "maximum_utc": "2026-05-09T20:53:25Z",
      "end_utc": "2026-05-09T20:56:23Z",
      "maximum_local": "2026-05-09T17:53:25-03:00",
      "max_altitude_deg": 29.37,
      "max_azimuth_deg": 308.64,
      "range_at_max_km": 792.4,
      "ground_track_distance_km": 648.6,
      "subpoint_at_max": {
        "latitude_deg": -26.43986,
        "longitude_deg": -74.32178,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 11.34,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T20:50:25Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 246.32,
        "range_km": 1513.4
      },
      "disappears": {
        "time_utc": "2026-05-09T20:56:23Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 11.15,
        "range_km": 1491.8
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-09T20:50:15Z",
      "maximum_utc": "2026-05-09T20:53:27Z",
      "end_utc": "2026-05-09T20:56:37Z",
      "maximum_local": "2026-05-09T16:53:27-04:00",
      "max_altitude_deg": 39.72,
      "max_azimuth_deg": 309.4,
      "range_at_max_km": 634.8,
      "ground_track_distance_km": 458.3,
      "subpoint_at_max": {
        "latitude_deg": -26.35175,
        "longitude_deg": -74.23583,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 13.0,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-09T20:50:15Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 238.73,
        "range_km": 1512.5
      },
      "disappears": {
        "time_utc": "2026-05-09T20:56:37Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 20.29,
        "range_km": 1488.9
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T11:51:46Z",
      "maximum_utc": "2026-05-10T11:55:07Z",
      "end_utc": "2026-05-10T11:58:31Z",
      "maximum_local": "2026-05-10T07:55:07-04:00",
      "max_altitude_deg": 57.02,
      "max_azimuth_deg": 225.24,
      "range_at_max_km": 507.2,
      "ground_track_distance_km": 258.7,
      "subpoint_at_max": {
        "latitude_deg": -30.64982,
        "longitude_deg": -72.60497,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.1,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T11:51:46Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 305.23,
        "range_km": 1510.4
      },
      "disappears": {
        "time_utc": "2026-05-10T11:58:31Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 145.11,
        "range_km": 1530.1
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T11:51:58Z",
      "maximum_utc": "2026-05-10T11:55:21Z",
      "end_utc": "2026-05-10T11:58:46Z",
      "maximum_local": "2026-05-10T07:55:21-04:00",
      "max_altitude_deg": 68.38,
      "max_azimuth_deg": 225.22,
      "range_at_max_km": 461.4,
      "ground_track_distance_km": 159.2,
      "subpoint_at_max": {
        "latitude_deg": -31.25746,
        "longitude_deg": -71.92462,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.59,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T11:51:58Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 309.22,
        "range_km": 1511.5
      },
      "disappears": {
        "time_utc": "2026-05-10T11:58:46Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 141.05,
        "range_km": 1529.8
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T11:52:04Z",
      "maximum_utc": "2026-05-10T11:55:29Z",
      "end_utc": "2026-05-10T11:58:56Z",
      "maximum_local": "2026-05-10T07:55:29-04:00",
      "max_altitude_deg": 80.56,
      "max_azimuth_deg": 224.89,
      "range_at_max_km": 438.2,
      "ground_track_distance_km": 67.3,
      "subpoint_at_max": {
        "latitude_deg": -31.62924,
        "longitude_deg": -71.50128,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.01,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T11:52:04Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 313.02,
        "range_km": 1514.5
      },
      "disappears": {
        "time_utc": "2026-05-10T11:58:56Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 137.47,
        "range_km": 1533.8
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T11:52:14Z",
      "maximum_utc": "2026-05-10T11:55:35Z",
      "end_utc": "2026-05-10T11:58:59Z",
      "maximum_local": "2026-05-10T08:55:35-03:00",
      "max_altitude_deg": 56.39,
      "max_azimuth_deg": 224.28,
      "range_at_max_km": 511.7,
      "ground_track_distance_km": 265.3,
      "subpoint_at_max": {
        "latitude_deg": -31.88848,
        "longitude_deg": -71.20278,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.83,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T11:52:14Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 304.1,
        "range_km": 1513.6
      },
      "disappears": {
        "time_utc": "2026-05-10T11:58:59Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 144.45,
        "range_km": 1532.3
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T11:52:29Z",
      "maximum_utc": "2026-05-10T11:55:53Z",
      "end_utc": "2026-05-10T11:59:19Z",
      "maximum_local": "2026-05-10T08:55:53-03:00",
      "max_altitude_deg": 71.55,
      "max_azimuth_deg": 224.47,
      "range_at_max_km": 453.5,
      "ground_track_distance_km": 134.4,
      "subpoint_at_max": {
        "latitude_deg": -32.66112,
        "longitude_deg": -70.29639,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.15,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T11:52:29Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 309.31,
        "range_km": 1512.0
      },
      "disappears": {
        "time_utc": "2026-05-10T11:59:19Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 139.11,
        "range_km": 1531.4
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T18:26:48Z",
      "maximum_utc": "2026-05-10T18:28:19Z",
      "end_utc": "2026-05-10T18:29:49Z",
      "maximum_local": "2026-05-10T14:28:19-04:00",
      "max_altitude_deg": 12.3,
      "max_azimuth_deg": 148.13,
      "range_at_max_km": 1387.7,
      "ground_track_distance_km": 1278.9,
      "subpoint_at_max": {
        "latitude_deg": -40.74175,
        "longitude_deg": -63.03845,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 34.59,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T18:26:48Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 174.29,
        "range_km": 1527.8
      },
      "disappears": {
        "time_utc": "2026-05-10T18:29:49Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 121.93,
        "range_km": 1519.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T18:27:30Z",
      "maximum_utc": "2026-05-10T18:28:30Z",
      "end_utc": "2026-05-10T18:29:30Z",
      "maximum_local": "2026-05-10T14:28:30-04:00",
      "max_altitude_deg": 10.95,
      "max_azimuth_deg": 147.77,
      "range_at_max_km": 1461.2,
      "ground_track_distance_km": 1354.4,
      "subpoint_at_max": {
        "latitude_deg": -40.30298,
        "longitude_deg": -62.27981,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 35.26,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T18:27:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 164.87,
        "range_km": 1522.3
      },
      "disappears": {
        "time_utc": "2026-05-10T18:29:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 130.69,
        "range_km": 1516.8
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T18:26:30Z",
      "maximum_utc": "2026-05-10T18:28:34Z",
      "end_utc": "2026-05-10T18:30:38Z",
      "maximum_local": "2026-05-10T15:28:34-03:00",
      "max_altitude_deg": 15.01,
      "max_azimuth_deg": 146.96,
      "range_at_max_km": 1247.5,
      "ground_track_distance_km": 1135.0,
      "subpoint_at_max": {
        "latitude_deg": -40.16867,
        "longitude_deg": -62.05157,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 33.28,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T18:26:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 184.33,
        "range_km": 1525.3
      },
      "disappears": {
        "time_utc": "2026-05-10T18:30:38Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 109.55,
        "range_km": 1513.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T18:27:21Z",
      "maximum_utc": "2026-05-10T18:28:49Z",
      "end_utc": "2026-05-10T18:30:17Z",
      "maximum_local": "2026-05-10T15:28:49-03:00",
      "max_altitude_deg": 12.2,
      "max_azimuth_deg": 146.68,
      "range_at_max_km": 1389.9,
      "ground_track_distance_km": 1281.6,
      "subpoint_at_max": {
        "latitude_deg": -39.58614,
        "longitude_deg": -61.08226,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 34.56,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T18:27:21Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 172.34,
        "range_km": 1524.5
      },
      "disappears": {
        "time_utc": "2026-05-10T18:30:17Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 121.05,
        "range_km": 1516.1
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T20:02:03Z",
      "maximum_utc": "2026-05-10T20:05:26Z",
      "end_utc": "2026-05-10T20:08:47Z",
      "maximum_local": "2026-05-10T16:05:26-04:00",
      "max_altitude_deg": 67.36,
      "max_azimuth_deg": 312.5,
      "range_at_max_km": 459.8,
      "ground_track_distance_km": 165.9,
      "subpoint_at_max": {
        "latitude_deg": -30.1835,
        "longitude_deg": -72.27043,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 20.57,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T20:02:03Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 229.91,
        "range_km": 1521.6
      },
      "disappears": {
        "time_utc": "2026-05-10T20:08:47Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 35.71,
        "range_km": 1497.2
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T20:02:16Z",
      "maximum_utc": "2026-05-10T20:05:35Z",
      "end_utc": "2026-05-10T20:08:51Z",
      "maximum_local": "2026-05-10T17:05:35-03:00",
      "max_altitude_deg": 49.71,
      "max_azimuth_deg": 311.85,
      "range_at_max_km": 545.3,
      "ground_track_distance_km": 330.7,
      "subpoint_at_max": {
        "latitude_deg": -29.78597,
        "longitude_deg": -71.83937,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 19.02,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T20:02:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 235.7,
        "range_km": 1517.5
      },
      "disappears": {
        "time_utc": "2026-05-10T20:08:51Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 28.0,
        "range_km": 1493.5
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T20:02:16Z",
      "maximum_utc": "2026-05-10T20:05:40Z",
      "end_utc": "2026-05-10T20:09:01Z",
      "maximum_local": "2026-05-10T16:05:40-04:00",
      "max_altitude_deg": 74.13,
      "max_azimuth_deg": 312.71,
      "range_at_max_km": 440.6,
      "ground_track_distance_km": 113.0,
      "subpoint_at_max": {
        "latitude_deg": -29.55805,
        "longitude_deg": -71.59469,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 20.92,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T20:02:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 227.62,
        "range_km": 1517.2
      },
      "disappears": {
        "time_utc": "2026-05-10T20:09:01Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 37.69,
        "range_km": 1493.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-10T20:02:30Z",
      "maximum_utc": "2026-05-10T20:05:55Z",
      "end_utc": "2026-05-10T20:09:17Z",
      "maximum_local": "2026-05-10T16:05:55-04:00",
      "max_altitude_deg": 86.54,
      "max_azimuth_deg": 313.83,
      "range_at_max_km": 425.5,
      "ground_track_distance_km": 24.1,
      "subpoint_at_max": {
        "latitude_deg": -28.87107,
        "longitude_deg": -70.86772,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 21.58,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T20:02:30Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 223.99,
        "range_km": 1516.3
      },
      "disappears": {
        "time_utc": "2026-05-10T20:09:17Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 41.23,
        "range_km": 1493.0
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-10T20:02:32Z",
      "maximum_utc": "2026-05-10T20:05:55Z",
      "end_utc": "2026-05-10T20:09:14Z",
      "maximum_local": "2026-05-10T17:05:55-03:00",
      "max_altitude_deg": 61.47,
      "max_azimuth_deg": 311.77,
      "range_at_max_km": 479.6,
      "ground_track_distance_km": 214.8,
      "subpoint_at_max": {
        "latitude_deg": -28.89021,
        "longitude_deg": -70.88777,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 19.88,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-10T20:02:32Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 230.92,
        "range_km": 1518.0
      },
      "disappears": {
        "time_utc": "2026-05-10T20:09:14Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 32.76,
        "range_km": 1494.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T11:04:10Z",
      "maximum_utc": "2026-05-11T11:07:32Z",
      "end_utc": "2026-05-11T11:10:57Z",
      "maximum_local": "2026-05-11T07:07:32-04:00",
      "max_altitude_deg": 68.01,
      "max_azimuth_deg": 48.38,
      "range_at_max_km": 461.3,
      "ground_track_distance_km": 161.8,
      "subpoint_at_max": {
        "latitude_deg": -28.04673,
        "longitude_deg": -69.45941,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.67,
      "iss_sunlit": true,
      "quality": "twilight_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T11:04:10Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 325.29,
        "range_km": 1506.9
      },
      "disappears": {
        "time_utc": "2026-05-11T11:10:57Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 131.53,
        "range_km": 1527.8
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T11:04:26Z",
      "maximum_utc": "2026-05-11T11:07:46Z",
      "end_utc": "2026-05-11T11:11:09Z",
      "maximum_local": "2026-05-11T07:07:46-04:00",
      "max_altitude_deg": 57.24,
      "max_azimuth_deg": 48.54,
      "range_at_max_km": 504.8,
      "ground_track_distance_km": 255.9,
      "subpoint_at_max": {
        "latitude_deg": -28.70942,
        "longitude_deg": -68.77585,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.06,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T11:04:26Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 329.12,
        "range_km": 1507.2
      },
      "disappears": {
        "time_utc": "2026-05-11T11:11:09Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 127.75,
        "range_km": 1527.9
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T11:04:37Z",
      "maximum_utc": "2026-05-11T11:07:55Z",
      "end_utc": "2026-05-11T11:11:16Z",
      "maximum_local": "2026-05-11T07:07:55-04:00",
      "max_altitude_deg": 48.92,
      "max_azimuth_deg": 48.63,
      "range_at_max_km": 559.4,
      "ground_track_distance_km": 344.5,
      "subpoint_at_max": {
        "latitude_deg": -29.12026,
        "longitude_deg": -68.34515,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.55,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T11:04:37Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 332.85,
        "range_km": 1511.7
      },
      "disappears": {
        "time_utc": "2026-05-11T11:11:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 124.31,
        "range_km": 1531.8
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T11:04:37Z",
      "maximum_utc": "2026-05-11T11:08:00Z",
      "end_utc": "2026-05-11T11:11:25Z",
      "maximum_local": "2026-05-11T08:08:00-03:00",
      "max_altitude_deg": 70.23,
      "max_azimuth_deg": 47.81,
      "range_at_max_km": 456.1,
      "ground_track_distance_km": 144.5,
      "subpoint_at_max": {
        "latitude_deg": -29.31078,
        "longitude_deg": -68.14357,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -1.78,
      "iss_sunlit": true,
      "quality": "twilight_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T11:04:37Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 323.81,
        "range_km": 1509.9
      },
      "disappears": {
        "time_utc": "2026-05-11T11:11:25Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 131.43,
        "range_km": 1530.2
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T11:04:58Z",
      "maximum_utc": "2026-05-11T11:08:18Z",
      "end_utc": "2026-05-11T11:11:41Z",
      "maximum_local": "2026-05-11T08:08:18-03:00",
      "max_altitude_deg": 56.01,
      "max_azimuth_deg": 47.62,
      "range_at_max_km": 512.1,
      "ground_track_distance_km": 268.2,
      "subpoint_at_max": {
        "latitude_deg": -30.15408,
        "longitude_deg": -67.2366,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.3,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T11:04:58Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 328.83,
        "range_km": 1509.5
      },
      "disappears": {
        "time_utc": "2026-05-11T11:11:41Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 126.45,
        "range_km": 1529.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T12:43:40Z",
      "maximum_utc": "2026-05-11T12:44:39Z",
      "end_utc": "2026-05-11T12:45:39Z",
      "maximum_local": "2026-05-11T08:44:39-04:00",
      "max_altitude_deg": 10.92,
      "max_azimuth_deg": 213.96,
      "range_at_max_km": 1472.4,
      "ground_track_distance_km": 1364.5,
      "subpoint_at_max": {
        "latitude_deg": -38.93433,
        "longitude_deg": -79.44093,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.47,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T12:43:40Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 230.73,
        "range_km": 1527.2
      },
      "disappears": {
        "time_utc": "2026-05-11T12:45:39Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 197.12,
        "range_km": 1531.1
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T12:43:10Z",
      "maximum_utc": "2026-05-11T12:44:50Z",
      "end_utc": "2026-05-11T12:46:31Z",
      "maximum_local": "2026-05-11T08:44:50-04:00",
      "max_altitude_deg": 12.93,
      "max_azimuth_deg": 213.79,
      "range_at_max_km": 1359.3,
      "ground_track_distance_km": 1248.7,
      "subpoint_at_max": {
        "latitude_deg": -39.35681,
        "longitude_deg": -78.76658,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 15.81,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T12:43:10Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 243.03,
        "range_km": 1525.8
      },
      "disappears": {
        "time_utc": "2026-05-11T12:46:31Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 184.5,
        "range_km": 1532.5
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T12:42:52Z",
      "maximum_utc": "2026-05-11T12:44:56Z",
      "end_utc": "2026-05-11T12:47:01Z",
      "maximum_local": "2026-05-11T08:44:56-04:00",
      "max_altitude_deg": 14.97,
      "max_azimuth_deg": 213.84,
      "range_at_max_km": 1261.4,
      "ground_track_distance_km": 1147.3,
      "subpoint_at_max": {
        "latitude_deg": -39.5744,
        "longitude_deg": -78.41303,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 15.13,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T12:42:52Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 251.02,
        "range_km": 1528.6
      },
      "disappears": {
        "time_utc": "2026-05-11T12:47:01Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 176.6,
        "range_km": 1537.1
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T12:43:54Z",
      "maximum_utc": "2026-05-11T12:45:08Z",
      "end_utc": "2026-05-11T12:46:22Z",
      "maximum_local": "2026-05-11T09:45:08-03:00",
      "max_altitude_deg": 11.46,
      "max_azimuth_deg": 212.74,
      "range_at_max_km": 1442.5,
      "ground_track_distance_km": 1333.7,
      "subpoint_at_max": {
        "latitude_deg": -40.02964,
        "longitude_deg": -77.65892,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.98,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T12:43:54Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 233.77,
        "range_km": 1529.1
      },
      "disappears": {
        "time_utc": "2026-05-11T12:46:22Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 191.62,
        "range_km": 1533.9
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T12:43:25Z",
      "maximum_utc": "2026-05-11T12:45:22Z",
      "end_utc": "2026-05-11T12:47:19Z",
      "maximum_local": "2026-05-11T09:45:22-03:00",
      "max_altitude_deg": 14.24,
      "max_azimuth_deg": 212.5,
      "range_at_max_km": 1293.8,
      "ground_track_distance_km": 1181.0,
      "subpoint_at_max": {
        "latitude_deg": -40.55747,
        "longitude_deg": -76.75887,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 16.1,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T12:43:25Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 247.19,
        "range_km": 1526.7
      },
      "disappears": {
        "time_utc": "2026-05-11T12:47:19Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 177.81,
        "range_km": 1534.2
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T19:14:28Z",
      "maximum_utc": "2026-05-11T19:17:51Z",
      "end_utc": "2026-05-11T19:21:11Z",
      "maximum_local": "2026-05-11T15:17:51-04:00",
      "max_altitude_deg": 59.23,
      "max_azimuth_deg": 136.12,
      "range_at_max_km": 492.9,
      "ground_track_distance_km": 236.4,
      "subpoint_at_max": {
        "latitude_deg": -32.72405,
        "longitude_deg": -69.25332,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 27.92,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T19:14:28Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 217.21,
        "range_km": 1525.0
      },
      "disappears": {
        "time_utc": "2026-05-11T19:21:11Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 55.31,
        "range_km": 1502.3
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T19:14:36Z",
      "maximum_utc": "2026-05-11T19:18:01Z",
      "end_utc": "2026-05-11T19:21:23Z",
      "maximum_local": "2026-05-11T16:18:01-03:00",
      "max_altitude_deg": 79.32,
      "max_azimuth_deg": 135.44,
      "range_at_max_km": 433.7,
      "ground_track_distance_km": 75.3,
      "subpoint_at_max": {
        "latitude_deg": -32.28322,
        "longitude_deg": -68.73178,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 26.46,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T19:14:36Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 222.69,
        "range_km": 1521.3
      },
      "disappears": {
        "time_utc": "2026-05-11T19:21:23Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 47.83,
        "range_km": 1498.0
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T19:14:43Z",
      "maximum_utc": "2026-05-11T19:18:04Z",
      "end_utc": "2026-05-11T19:21:23Z",
      "maximum_local": "2026-05-11T15:18:04-04:00",
      "max_altitude_deg": 53.14,
      "max_azimuth_deg": 136.01,
      "range_at_max_km": 524.0,
      "ground_track_distance_km": 294.7,
      "subpoint_at_max": {
        "latitude_deg": -32.14493,
        "longitude_deg": -68.56991,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 28.43,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T19:14:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 214.58,
        "range_km": 1520.5
      },
      "disappears": {
        "time_utc": "2026-05-11T19:21:23Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 57.52,
        "range_km": 1499.0
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T19:15:01Z",
      "maximum_utc": "2026-05-11T19:18:19Z",
      "end_utc": "2026-05-11T19:21:33Z",
      "maximum_local": "2026-05-11T15:18:19-04:00",
      "max_altitude_deg": 44.91,
      "max_azimuth_deg": 135.97,
      "range_at_max_km": 586.0,
      "ground_track_distance_km": 389.3,
      "subpoint_at_max": {
        "latitude_deg": -31.51499,
        "longitude_deg": -67.84263,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 29.25,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T19:15:01Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 210.53,
        "range_km": 1519.9
      },
      "disappears": {
        "time_utc": "2026-05-11T19:21:33Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 61.36,
        "range_km": 1497.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-11T19:14:56Z",
      "maximum_utc": "2026-05-11T19:18:20Z",
      "end_utc": "2026-05-11T19:21:41Z",
      "maximum_local": "2026-05-11T16:18:20-03:00",
      "max_altitude_deg": 63.41,
      "max_azimuth_deg": 135.03,
      "range_at_max_km": 473.6,
      "ground_track_distance_km": 198.8,
      "subpoint_at_max": {
        "latitude_deg": -31.44986,
        "longitude_deg": -67.76836,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 27.53,
      "iss_sunlit": true,
      "quality": "daytime_high_conjunction",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T19:14:56Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 217.61,
        "range_km": 1521.3
      },
      "disappears": {
        "time_utc": "2026-05-11T19:21:41Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 52.72,
        "range_km": 1499.2
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-11T20:54:12Z",
      "maximum_utc": "2026-05-11T20:54:44Z",
      "end_utc": "2026-05-11T20:55:16Z",
      "maximum_local": "2026-05-11T16:54:44-04:00",
      "max_altitude_deg": 10.28,
      "max_azimuth_deg": 303.96,
      "range_at_max_km": 1478.7,
      "ground_track_distance_km": 1375.1,
      "subpoint_at_max": {
        "latitude_deg": -21.64683,
        "longitude_deg": -81.68878,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 12.43,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-11T20:54:12Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 294.65,
        "range_km": 1498.6
      },
      "disappears": {
        "time_utc": "2026-05-11T20:55:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 313.29,
        "range_km": 1494.3
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T10:16:56Z",
      "maximum_utc": "2026-05-12T10:20:00Z",
      "end_utc": "2026-05-12T10:23:06Z",
      "maximum_local": "2026-05-12T06:20:00-04:00",
      "max_altitude_deg": 31.82,
      "max_azimuth_deg": 51.49,
      "range_at_max_km": 755.7,
      "ground_track_distance_km": 602.5,
      "subpoint_at_max": {
        "latitude_deg": -25.55634,
        "longitude_deg": -66.00068,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -12.74,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-12T10:16:56Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 346.71,
        "range_km": 1504.5
      },
      "disappears": {
        "time_utc": "2026-05-12T10:23:06Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 116.13,
        "range_km": 1524.8
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T10:17:18Z",
      "maximum_utc": "2026-05-12T10:20:15Z",
      "end_utc": "2026-05-12T10:23:14Z",
      "maximum_local": "2026-05-12T06:20:15-04:00",
      "max_altitude_deg": 27.83,
      "max_azimuth_deg": 51.56,
      "range_at_max_km": 833.0,
      "ground_track_distance_km": 691.4,
      "subpoint_at_max": {
        "latitude_deg": -26.26271,
        "longitude_deg": -65.32056,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -13.03,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-12T10:17:18Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 350.84,
        "range_km": 1504.5
      },
      "disappears": {
        "time_utc": "2026-05-12T10:23:14Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 112.2,
        "range_km": 1524.7
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T10:17:34Z",
      "maximum_utc": "2026-05-12T10:20:25Z",
      "end_utc": "2026-05-12T10:23:17Z",
      "maximum_local": "2026-05-12T06:20:25-04:00",
      "max_altitude_deg": 24.68,
      "max_azimuth_deg": 51.79,
      "range_at_max_km": 910.2,
      "ground_track_distance_km": 776.6,
      "subpoint_at_max": {
        "latitude_deg": -26.72168,
        "longitude_deg": -64.87177,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -13.43,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-12T10:17:34Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 354.95,
        "range_km": 1509.6
      },
      "disappears": {
        "time_utc": "2026-05-12T10:23:17Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 108.47,
        "range_km": 1528.5
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T10:17:21Z",
      "maximum_utc": "2026-05-12T10:20:27Z",
      "end_utc": "2026-05-12T10:23:35Z",
      "maximum_local": "2026-05-12T07:20:27-03:00",
      "max_altitude_deg": 33.24,
      "max_azimuth_deg": 50.87,
      "range_at_max_km": 733.5,
      "ground_track_distance_km": 575.5,
      "subpoint_at_max": {
        "latitude_deg": -26.83858,
        "longitude_deg": -64.75656,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -11.72,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-12T10:17:21Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 344.82,
        "range_km": 1507.4
      },
      "disappears": {
        "time_utc": "2026-05-12T10:23:35Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 116.69,
        "range_km": 1527.4
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T10:17:50Z",
      "maximum_utc": "2026-05-12T10:20:47Z",
      "end_utc": "2026-05-12T10:23:46Z",
      "maximum_local": "2026-05-12T07:20:47-03:00",
      "max_altitude_deg": 27.84,
      "max_azimuth_deg": 50.93,
      "range_at_max_km": 834.0,
      "ground_track_distance_km": 692.1,
      "subpoint_at_max": {
        "latitude_deg": -27.7503,
        "longitude_deg": -63.84511,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -12.08,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-12T10:17:50Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 350.2,
        "range_km": 1506.9
      },
      "disappears": {
        "time_utc": "2026-05-12T10:23:46Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 111.53,
        "range_km": 1526.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T11:54:27Z",
      "maximum_utc": "2026-05-12T11:56:51Z",
      "end_utc": "2026-05-12T11:59:16Z",
      "maximum_local": "2026-05-12T07:56:51-04:00",
      "max_altitude_deg": 17.61,
      "max_azimuth_deg": 217.95,
      "range_at_max_km": 1141.9,
      "ground_track_distance_km": 1023.9,
      "subpoint_at_max": {
        "latitude_deg": -36.11574,
        "longitude_deg": -77.66604,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.17,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T11:54:27Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 262.64,
        "range_km": 1520.6
      },
      "disappears": {
        "time_utc": "2026-05-12T11:59:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 173.28,
        "range_km": 1531.7
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T11:54:24Z",
      "maximum_utc": "2026-05-12T11:57:03Z",
      "end_utc": "2026-05-12T11:59:43Z",
      "maximum_local": "2026-05-12T07:57:03-04:00",
      "max_altitude_deg": 20.5,
      "max_azimuth_deg": 217.79,
      "range_at_max_km": 1037.7,
      "ground_track_distance_km": 913.5,
      "subpoint_at_max": {
        "latitude_deg": -36.60767,
        "longitude_deg": -76.9836,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.64,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T11:54:24Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 268.64,
        "range_km": 1519.9
      },
      "disappears": {
        "time_utc": "2026-05-12T11:59:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 167.02,
        "range_km": 1532.3
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T11:54:19Z",
      "maximum_utc": "2026-05-12T11:57:09Z",
      "end_utc": "2026-05-12T12:00:01Z",
      "maximum_local": "2026-05-12T07:57:09-04:00",
      "max_altitude_deg": 23.59,
      "max_azimuth_deg": 217.91,
      "range_at_max_km": 947.2,
      "ground_track_distance_km": 815.1,
      "subpoint_at_max": {
        "latitude_deg": -36.8733,
        "longitude_deg": -76.60856,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 6.05,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T11:54:19Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 273.83,
        "range_km": 1523.3
      },
      "disappears": {
        "time_utc": "2026-05-12T12:00:01Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 161.95,
        "range_km": 1536.9
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T11:54:52Z",
      "maximum_utc": "2026-05-12T11:57:19Z",
      "end_utc": "2026-05-12T11:59:47Z",
      "maximum_local": "2026-05-12T08:57:19-03:00",
      "max_altitude_deg": 18.08,
      "max_azimuth_deg": 216.84,
      "range_at_max_km": 1125.8,
      "ground_track_distance_km": 1006.5,
      "subpoint_at_max": {
        "latitude_deg": -37.27337,
        "longitude_deg": -76.03465,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.88,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T11:54:52Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 262.62,
        "range_km": 1522.9
      },
      "disappears": {
        "time_utc": "2026-05-12T11:59:47Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 171.05,
        "range_km": 1534.3
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T11:54:49Z",
      "maximum_utc": "2026-05-12T11:57:34Z",
      "end_utc": "2026-05-12T12:00:21Z",
      "maximum_local": "2026-05-12T08:57:34-03:00",
      "max_altitude_deg": 22.07,
      "max_azimuth_deg": 216.69,
      "range_at_max_km": 989.1,
      "ground_track_distance_km": 861.0,
      "subpoint_at_max": {
        "latitude_deg": -37.88826,
        "longitude_deg": -75.13036,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 7.17,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T11:54:49Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 270.25,
        "range_km": 1521.3
      },
      "disappears": {
        "time_utc": "2026-05-12T12:00:21Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 163.09,
        "range_km": 1533.8
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T18:27:04Z",
      "maximum_utc": "2026-05-12T18:30:11Z",
      "end_utc": "2026-05-12T18:33:15Z",
      "maximum_local": "2026-05-12T14:30:11-04:00",
      "max_altitude_deg": 31.33,
      "max_azimuth_deg": 139.96,
      "range_at_max_km": 766.2,
      "ground_track_distance_km": 614.3,
      "subpoint_at_max": {
        "latitude_deg": -35.36476,
        "longitude_deg": -66.65618,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 33.93,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T18:27:04Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 204.99,
        "range_km": 1527.2
      },
      "disappears": {
        "time_utc": "2026-05-12T18:33:15Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 74.93,
        "range_km": 1507.8
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T18:27:07Z",
      "maximum_utc": "2026-05-12T18:30:23Z",
      "end_utc": "2026-05-12T18:33:35Z",
      "maximum_local": "2026-05-12T15:30:23-03:00",
      "max_altitude_deg": 40.08,
      "max_azimuth_deg": 138.96,
      "range_at_max_km": 638.0,
      "ground_track_distance_km": 457.8,
      "subpoint_at_max": {
        "latitude_deg": -34.87009,
        "longitude_deg": -66.0068,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 32.62,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T18:27:07Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 210.7,
        "range_km": 1524.2
      },
      "disappears": {
        "time_utc": "2026-05-12T18:33:35Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 67.14,
        "range_km": 1502.9
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T18:27:22Z",
      "maximum_utc": "2026-05-12T18:30:24Z",
      "end_utc": "2026-05-12T18:33:23Z",
      "maximum_local": "2026-05-12T14:30:24-04:00",
      "max_altitude_deg": 28.35,
      "max_azimuth_deg": 139.7,
      "range_at_max_km": 820.7,
      "ground_track_distance_km": 678.2,
      "subpoint_at_max": {
        "latitude_deg": -34.82573,
        "longitude_deg": -65.94922,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 34.59,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T18:27:22Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 201.75,
        "range_km": 1523.1
      },
      "disappears": {
        "time_utc": "2026-05-12T18:33:23Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 77.67,
        "range_km": 1503.7
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T18:27:45Z",
      "maximum_utc": "2026-05-12T18:30:37Z",
      "end_utc": "2026-05-12T18:33:28Z",
      "maximum_local": "2026-05-12T14:30:37-04:00",
      "max_altitude_deg": 24.48,
      "max_azimuth_deg": 139.6,
      "range_at_max_km": 910.7,
      "ground_track_distance_km": 778.8,
      "subpoint_at_max": {
        "latitude_deg": -34.25507,
        "longitude_deg": -65.21805,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 35.57,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T18:27:45Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 196.8,
        "range_km": 1521.9
      },
      "disappears": {
        "time_utc": "2026-05-12T18:33:28Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 82.28,
        "range_km": 1503.9
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T18:27:32Z",
      "maximum_utc": "2026-05-12T18:30:40Z",
      "end_utc": "2026-05-12T18:33:46Z",
      "maximum_local": "2026-05-12T15:30:40-03:00",
      "max_altitude_deg": 32.48,
      "max_azimuth_deg": 138.71,
      "range_at_max_km": 743.9,
      "ground_track_distance_km": 589.0,
      "subpoint_at_max": {
        "latitude_deg": -34.11162,
        "longitude_deg": -65.03692,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 33.9,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T18:27:32Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 204.84,
        "range_km": 1524.3
      },
      "disappears": {
        "time_utc": "2026-05-12T18:33:46Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 72.67,
        "range_km": 1503.9
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T20:04:28Z",
      "maximum_utc": "2026-05-12T20:06:46Z",
      "end_utc": "2026-05-12T20:09:04Z",
      "maximum_local": "2026-05-12T16:06:46-04:00",
      "max_altitude_deg": 17.13,
      "max_azimuth_deg": 306.5,
      "range_at_max_km": 1142.5,
      "ground_track_distance_km": 1027.9,
      "subpoint_at_max": {
        "latitude_deg": -25.42305,
        "longitude_deg": -79.20627,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 19.98,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T20:04:28Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 263.58,
        "range_km": 1513.9
      },
      "disappears": {
        "time_utc": "2026-05-12T20:09:04Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 349.58,
        "range_km": 1496.1
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T20:05:08Z",
      "maximum_utc": "2026-05-12T20:06:52Z",
      "end_utc": "2026-05-12T20:08:36Z",
      "maximum_local": "2026-05-12T17:06:52-03:00",
      "max_altitude_deg": 13.44,
      "max_azimuth_deg": 305.58,
      "range_at_max_km": 1306.1,
      "ground_track_distance_km": 1197.9,
      "subpoint_at_max": {
        "latitude_deg": -25.14661,
        "longitude_deg": -78.94432,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 18.44,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T20:05:08Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 274.47,
        "range_km": 1508.0
      },
      "disappears": {
        "time_utc": "2026-05-12T20:08:36Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 336.84,
        "range_km": 1494.3
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T20:04:37Z",
      "maximum_utc": "2026-05-12T20:07:01Z",
      "end_utc": "2026-05-12T20:09:24Z",
      "maximum_local": "2026-05-12T16:07:01-04:00",
      "max_altitude_deg": 18.1,
      "max_azimuth_deg": 306.45,
      "range_at_max_km": 1100.9,
      "ground_track_distance_km": 985.0,
      "subpoint_at_max": {
        "latitude_deg": -24.74079,
        "longitude_deg": -78.56304,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 20.34,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T20:04:37Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 261.19,
        "range_km": 1509.8
      },
      "disappears": {
        "time_utc": "2026-05-12T20:09:24Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 351.93,
        "range_km": 1491.8
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-12T20:05:08Z",
      "maximum_utc": "2026-05-12T20:07:14Z",
      "end_utc": "2026-05-12T20:09:19Z",
      "maximum_local": "2026-05-12T17:07:14-03:00",
      "max_altitude_deg": 15.52,
      "max_azimuth_deg": 305.8,
      "range_at_max_km": 1207.7,
      "ground_track_distance_km": 1096.4,
      "subpoint_at_max": {
        "latitude_deg": -24.11492,
        "longitude_deg": -77.98238,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 19.3,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T20:05:08Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 267.29,
        "range_km": 1509.6
      },
      "disappears": {
        "time_utc": "2026-05-12T20:09:19Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 344.41,
        "range_km": 1493.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-12T20:04:43Z",
      "maximum_utc": "2026-05-12T20:07:17Z",
      "end_utc": "2026-05-12T20:09:50Z",
      "maximum_local": "2026-05-12T16:07:17-04:00",
      "max_altitude_deg": 20.18,
      "max_azimuth_deg": 306.6,
      "range_at_max_km": 1026.9,
      "ground_track_distance_km": 906.9,
      "subpoint_at_max": {
        "latitude_deg": -23.95554,
        "longitude_deg": -77.83589,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 20.99,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-12T20:04:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 256.97,
        "range_km": 1509.8
      },
      "disappears": {
        "time_utc": "2026-05-12T20:09:50Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 356.35,
        "range_km": 1490.3
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T09:30:17Z",
      "maximum_utc": "2026-05-13T09:32:31Z",
      "end_utc": "2026-05-13T09:34:45Z",
      "maximum_local": "2026-05-13T05:32:31-04:00",
      "max_altitude_deg": 16.5,
      "max_azimuth_deg": 54.3,
      "range_at_max_km": 1175.2,
      "ground_track_distance_km": 1060.7,
      "subpoint_at_max": {
        "latitude_deg": -23.17728,
        "longitude_deg": -62.2869,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -23.02,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-13T09:30:17Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 12.93,
        "range_km": 1504.3
      },
      "disappears": {
        "time_utc": "2026-05-13T09:34:45Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 95.53,
        "range_km": 1520.0
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T09:30:48Z",
      "maximum_utc": "2026-05-13T09:32:46Z",
      "end_utc": "2026-05-13T09:34:46Z",
      "maximum_local": "2026-05-13T05:32:46-04:00",
      "max_altitude_deg": 14.68,
      "max_azimuth_deg": 54.41,
      "range_at_max_km": 1256.2,
      "ground_track_distance_km": 1144.6,
      "subpoint_at_max": {
        "latitude_deg": -23.9257,
        "longitude_deg": -61.60685,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -23.19,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-13T09:30:48Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 18.6,
        "range_km": 1505.6
      },
      "disappears": {
        "time_utc": "2026-05-13T09:34:46Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 90.19,
        "range_km": 1519.4
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T09:31:16Z",
      "maximum_utc": "2026-05-13T09:32:57Z",
      "end_utc": "2026-05-13T09:34:38Z",
      "maximum_local": "2026-05-13T05:32:57-04:00",
      "max_altitude_deg": 13.14,
      "max_azimuth_deg": 54.65,
      "range_at_max_km": 1336.2,
      "ground_track_distance_km": 1226.5,
      "subpoint_at_max": {
        "latitude_deg": -24.42255,
        "longitude_deg": -61.14875,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -23.51,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-13T09:31:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 24.81,
        "range_km": 1510.7
      },
      "disappears": {
        "time_utc": "2026-05-13T09:34:38Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 84.48,
        "range_km": 1522.6
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T09:30:38Z",
      "maximum_utc": "2026-05-13T09:32:58Z",
      "end_utc": "2026-05-13T09:35:19Z",
      "maximum_local": "2026-05-13T06:32:58-03:00",
      "max_altitude_deg": 17.38,
      "max_azimuth_deg": 53.74,
      "range_at_max_km": 1141.2,
      "ground_track_distance_km": 1024.8,
      "subpoint_at_max": {
        "latitude_deg": -24.47214,
        "longitude_deg": -61.10273,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -21.87,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-13T09:30:38Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 10.14,
        "range_km": 1506.2
      },
      "disappears": {
        "time_utc": "2026-05-13T09:35:19Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 97.24,
        "range_km": 1522.8
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T09:31:18Z",
      "maximum_utc": "2026-05-13T09:33:18Z",
      "end_utc": "2026-05-13T09:35:20Z",
      "maximum_local": "2026-05-13T06:33:18-03:00",
      "max_altitude_deg": 14.92,
      "max_azimuth_deg": 53.94,
      "range_at_max_km": 1246.8,
      "ground_track_distance_km": 1134.5,
      "subpoint_at_max": {
        "latitude_deg": -25.45043,
        "longitude_deg": -60.18325,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -22.08,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-13T09:31:18Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 17.35,
        "range_km": 1506.9
      },
      "disappears": {
        "time_utc": "2026-05-13T09:35:20Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 90.45,
        "range_km": 1521.4
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T11:06:03Z",
      "maximum_utc": "2026-05-13T11:09:06Z",
      "end_utc": "2026-05-13T11:12:10Z",
      "maximum_local": "2026-05-13T07:09:06-04:00",
      "max_altitude_deg": 29.68,
      "max_azimuth_deg": 221.68,
      "range_at_max_km": 800.3,
      "ground_track_distance_km": 652.5,
      "subpoint_at_max": {
        "latitude_deg": -33.33327,
        "longitude_deg": -75.34436,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.59,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T11:06:03Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 285.11,
        "range_km": 1514.8
      },
      "disappears": {
        "time_utc": "2026-05-13T11:12:10Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 158.34,
        "range_km": 1530.7
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T11:06:09Z",
      "maximum_utc": "2026-05-13T11:09:19Z",
      "end_utc": "2026-05-13T11:12:30Z",
      "maximum_local": "2026-05-13T07:09:19-04:00",
      "max_altitude_deg": 34.87,
      "max_azimuth_deg": 221.59,
      "range_at_max_km": 711.7,
      "ground_track_distance_km": 547.6,
      "subpoint_at_max": {
        "latitude_deg": -33.88422,
        "longitude_deg": -74.66454,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.0,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T11:06:09Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 289.67,
        "range_km": 1514.5
      },
      "disappears": {
        "time_utc": "2026-05-13T11:12:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 153.59,
        "range_km": 1531.4
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T11:06:11Z",
      "maximum_utc": "2026-05-13T11:09:26Z",
      "end_utc": "2026-05-13T11:12:44Z",
      "maximum_local": "2026-05-13T07:09:26-04:00",
      "max_altitude_deg": 40.78,
      "max_azimuth_deg": 221.8,
      "range_at_max_km": 637.4,
      "ground_track_distance_km": 452.4,
      "subpoint_at_max": {
        "latitude_deg": -34.19833,
        "longitude_deg": -74.27025,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -3.51,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T11:06:11Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 293.88,
        "range_km": 1518.1
      },
      "disappears": {
        "time_utc": "2026-05-13T11:12:44Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 149.54,
        "range_km": 1535.6
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T11:06:30Z",
      "maximum_utc": "2026-05-13T11:09:34Z",
      "end_utc": "2026-05-13T11:12:39Z",
      "maximum_local": "2026-05-13T08:09:34-03:00",
      "max_altitude_deg": 29.95,
      "max_azimuth_deg": 220.67,
      "range_at_max_km": 796.7,
      "ground_track_distance_km": 647.7,
      "subpoint_at_max": {
        "latitude_deg": -34.53766,
        "longitude_deg": -73.83861,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -1.72,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T11:06:30Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 284.37,
        "range_km": 1517.4
      },
      "disappears": {
        "time_utc": "2026-05-13T11:12:39Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 157.04,
        "range_km": 1533.4
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T11:06:38Z",
      "maximum_utc": "2026-05-13T11:09:50Z",
      "end_utc": "2026-05-13T11:13:05Z",
      "maximum_local": "2026-05-13T08:09:50-03:00",
      "max_altitude_deg": 37.09,
      "max_azimuth_deg": 220.55,
      "range_at_max_km": 681.3,
      "ground_track_distance_km": 509.5,
      "subpoint_at_max": {
        "latitude_deg": -35.23728,
        "longitude_deg": -72.92915,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -2.26,
      "iss_sunlit": true,
      "quality": "twilight_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T11:06:38Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 290.31,
        "range_km": 1516.2
      },
      "disappears": {
        "time_utc": "2026-05-13T11:13:05Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 150.86,
        "range_km": 1533.0
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T17:39:53Z",
      "maximum_utc": "2026-05-13T17:42:26Z",
      "end_utc": "2026-05-13T17:44:57Z",
      "maximum_local": "2026-05-13T13:42:26-04:00",
      "max_altitude_deg": 19.05,
      "max_azimuth_deg": 143.98,
      "range_at_max_km": 1084.5,
      "ground_track_distance_km": 964.2,
      "subpoint_at_max": {
        "latitude_deg": -38.06614,
        "longitude_deg": -64.55301,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 38.09,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T17:39:53Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 191.88,
        "range_km": 1529.5
      },
      "disappears": {
        "time_utc": "2026-05-13T17:44:57Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 95.96,
        "range_km": 1514.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T17:40:16Z",
      "maximum_utc": "2026-05-13T17:42:38Z",
      "end_utc": "2026-05-13T17:44:59Z",
      "maximum_local": "2026-05-13T13:42:38-04:00",
      "max_altitude_deg": 17.23,
      "max_azimuth_deg": 143.64,
      "range_at_max_km": 1150.1,
      "ground_track_distance_km": 1033.9,
      "subpoint_at_max": {
        "latitude_deg": -37.57118,
        "longitude_deg": -63.81634,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 38.9,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T17:40:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 187.4,
        "range_km": 1524.8
      },
      "disappears": {
        "time_utc": "2026-05-13T17:44:59Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 99.85,
        "range_km": 1510.8
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T17:39:49Z",
      "maximum_utc": "2026-05-13T17:42:39Z",
      "end_utc": "2026-05-13T17:45:27Z",
      "maximum_local": "2026-05-13T14:42:39-03:00",
      "max_altitude_deg": 23.4,
      "max_azimuth_deg": 142.83,
      "range_at_max_km": 943.4,
      "ground_track_distance_km": 813.4,
      "subpoint_at_max": {
        "latitude_deg": -37.52055,
        "longitude_deg": -63.74201,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 37.02,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T17:39:49Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 198.53,
        "range_km": 1526.5
      },
      "disappears": {
        "time_utc": "2026-05-13T17:45:27Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 87.11,
        "range_km": 1509.3
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T17:40:48Z",
      "maximum_utc": "2026-05-13T17:42:51Z",
      "end_utc": "2026-05-13T17:44:53Z",
      "maximum_local": "2026-05-13T13:42:51-04:00",
      "max_altitude_deg": 14.86,
      "max_azimuth_deg": 143.46,
      "range_at_max_km": 1252.4,
      "ground_track_distance_km": 1140.5,
      "subpoint_at_max": {
        "latitude_deg": -37.06244,
        "longitude_deg": -63.0778,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 40.03,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T17:40:48Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 180.33,
        "range_km": 1523.7
      },
      "disappears": {
        "time_utc": "2026-05-13T17:44:53Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 106.52,
        "range_km": 1511.6
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T17:40:22Z",
      "maximum_utc": "2026-05-13T17:42:56Z",
      "end_utc": "2026-05-13T17:45:28Z",
      "maximum_local": "2026-05-13T14:42:56-03:00",
      "max_altitude_deg": 19.29,
      "max_azimuth_deg": 142.6,
      "range_at_max_km": 1072.8,
      "ground_track_distance_km": 952.4,
      "subpoint_at_max": {
        "latitude_deg": -36.84891,
        "longitude_deg": -62.77319,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 38.49,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T17:40:22Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 191.08,
        "range_km": 1526.3
      },
      "disappears": {
        "time_utc": "2026-05-13T17:45:28Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 94.12,
        "range_km": 1510.8
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T19:16:11Z",
      "maximum_utc": "2026-05-13T19:19:17Z",
      "end_utc": "2026-05-13T19:22:21Z",
      "maximum_local": "2026-05-13T15:19:17-04:00",
      "max_altitude_deg": 32.52,
      "max_azimuth_deg": 309.56,
      "range_at_max_km": 739.6,
      "ground_track_distance_km": 585.4,
      "subpoint_at_max": {
        "latitude_deg": -27.75683,
        "longitude_deg": -75.57663,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 27.32,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T19:16:11Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 244.26,
        "range_km": 1520.1
      },
      "disappears": {
        "time_utc": "2026-05-13T19:22:21Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 14.98,
        "range_km": 1498.0
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T19:16:32Z",
      "maximum_utc": "2026-05-13T19:19:24Z",
      "end_utc": "2026-05-13T19:22:14Z",
      "maximum_local": "2026-05-13T16:19:24-03:00",
      "max_altitude_deg": 25.21,
      "max_azimuth_deg": 308.56,
      "range_at_max_km": 885.9,
      "ground_track_distance_km": 753.1,
      "subpoint_at_max": {
        "latitude_deg": -27.42746,
        "longitude_deg": -75.24455,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 25.86,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T19:16:32Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 251.12,
        "range_km": 1515.5
      },
      "disappears": {
        "time_utc": "2026-05-13T19:22:14Z",
        "altitude_deg": 9.98,
        "azimuth_deg": 6.25,
        "range_km": 1494.6
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T19:16:22Z",
      "maximum_utc": "2026-05-13T19:19:31Z",
      "end_utc": "2026-05-13T19:22:37Z",
      "maximum_local": "2026-05-13T15:19:31-04:00",
      "max_altitude_deg": 34.95,
      "max_azimuth_deg": 309.42,
      "range_at_max_km": 698.8,
      "ground_track_distance_km": 537.5,
      "subpoint_at_max": {
        "latitude_deg": -27.10686,
        "longitude_deg": -74.92427,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 27.82,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T19:16:22Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 242.13,
        "range_km": 1515.8
      },
      "disappears": {
        "time_utc": "2026-05-13T19:22:37Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 16.9,
        "range_km": 1492.4
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-13T19:16:43Z",
      "maximum_utc": "2026-05-13T19:19:45Z",
      "end_utc": "2026-05-13T19:22:44Z",
      "maximum_local": "2026-05-13T16:19:45-03:00",
      "max_altitude_deg": 29.62,
      "max_azimuth_deg": 308.66,
      "range_at_max_km": 789.4,
      "ground_track_distance_km": 644.5,
      "subpoint_at_max": {
        "latitude_deg": -26.46303,
        "longitude_deg": -74.28959,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 26.93,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T19:16:43Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 246.11,
        "range_km": 1516.3
      },
      "disappears": {
        "time_utc": "2026-05-13T19:22:44Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 11.41,
        "range_km": 1494.0
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-13T19:16:34Z",
      "maximum_utc": "2026-05-13T19:19:47Z",
      "end_utc": "2026-05-13T19:22:57Z",
      "maximum_local": "2026-05-13T15:19:47-04:00",
      "max_altitude_deg": 40.07,
      "max_azimuth_deg": 309.42,
      "range_at_max_km": 632.5,
      "ground_track_distance_km": 454.2,
      "subpoint_at_max": {
        "latitude_deg": -26.37496,
        "longitude_deg": -74.20364,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": 28.64,
      "iss_sunlit": true,
      "quality": "daytime_pass",
      "awe_observable": false,
      "appears": {
        "time_utc": "2026-05-13T19:16:34Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 238.55,
        "range_km": 1515.5
      },
      "disappears": {
        "time_utc": "2026-05-13T19:22:57Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 20.53,
        "range_km": 1492.0
      }
    },
    {
      "site_code": "LCO",
      "site_name": "Las Campanas Observatory",
      "site_display_name": "LCO — Las Campanas Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-14T10:18:04Z",
      "maximum_utc": "2026-05-14T10:21:25Z",
      "end_utc": "2026-05-14T10:24:48Z",
      "maximum_local": "2026-05-14T06:21:25-04:00",
      "max_altitude_deg": 57.46,
      "max_azimuth_deg": 225.21,
      "range_at_max_km": 504.5,
      "ground_track_distance_km": 254.3,
      "subpoint_at_max": {
        "latitude_deg": -30.62352,
        "longitude_deg": -72.57101,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -12.66,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-14T10:18:04Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 305.44,
        "range_km": 1509.3
      },
      "disappears": {
        "time_utc": "2026-05-14T10:24:48Z",
        "altitude_deg": 9.99,
        "azimuth_deg": 144.97,
        "range_km": 1529.7
      }
    },
    {
      "site_code": "ALO",
      "site_name": "Andes Lidar Observatory",
      "site_display_name": "ALO — Andes Lidar Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-14T10:18:15Z",
      "maximum_utc": "2026-05-14T10:21:38Z",
      "end_utc": "2026-05-14T10:25:04Z",
      "maximum_local": "2026-05-14T06:21:38-04:00",
      "max_altitude_deg": 68.91,
      "max_azimuth_deg": 225.16,
      "range_at_max_km": 459.5,
      "ground_track_distance_km": 154.9,
      "subpoint_at_max": {
        "latitude_deg": -31.2314,
        "longitude_deg": -71.89099,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -12.96,
      "iss_sunlit": true,
      "quality": "night_high_conjunction",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-14T10:18:15Z",
        "altitude_deg": 10.01,
        "azimuth_deg": 309.42,
        "range_km": 1509.1
      },
      "disappears": {
        "time_utc": "2026-05-14T10:25:04Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 140.92,
        "range_km": 1529.7
      }
    },
    {
      "site_code": "SCO",
      "site_name": "Southern Cross Observatory",
      "site_display_name": "SCO — Southern Cross Observatory",
      "country": "Chile",
      "timezone": "America/Santiago",
      "start_utc": "2026-05-14T10:18:22Z",
      "maximum_utc": "2026-05-14T10:21:47Z",
      "end_utc": "2026-05-14T10:25:14Z",
      "maximum_local": "2026-05-14T06:21:47-04:00",
      "max_altitude_deg": 81.14,
      "max_azimuth_deg": 224.71,
      "range_at_max_km": 437.2,
      "ground_track_distance_km": 63.0,
      "subpoint_at_max": {
        "latitude_deg": -31.60333,
        "longitude_deg": -71.46786,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -13.38,
      "iss_sunlit": true,
      "quality": "night_high_conjunction",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-14T10:18:22Z",
        "altitude_deg": 10.02,
        "azimuth_deg": 313.23,
        "range_km": 1512.5
      },
      "disappears": {
        "time_utc": "2026-05-14T10:25:14Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 137.34,
        "range_km": 1533.7
      }
    },
    {
      "site_code": "Tudcum",
      "site_name": "Tudcum",
      "site_display_name": "Tudcum",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-14T10:18:31Z",
      "maximum_utc": "2026-05-14T10:21:52Z",
      "end_utc": "2026-05-14T10:25:16Z",
      "maximum_local": "2026-05-14T07:21:52-03:00",
      "max_altitude_deg": 56.81,
      "max_azimuth_deg": 224.24,
      "range_at_max_km": 509.0,
      "ground_track_distance_km": 261.1,
      "subpoint_at_max": {
        "latitude_deg": -31.86268,
        "longitude_deg": -71.16951,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -11.65,
      "iss_sunlit": true,
      "quality": "night_pass",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-14T10:18:31Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 304.3,
        "range_km": 1512.4
      },
      "disappears": {
        "time_utc": "2026-05-14T10:25:16Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 144.31,
        "range_km": 1531.9
      }
    },
    {
      "site_code": "CASLEO",
      "site_name": "Complejo Astronómico El Leoncito",
      "site_display_name": "CASLEO — Complejo Astronómico El Leoncito",
      "country": "Argentina",
      "timezone": "America/Argentina/San_Juan",
      "start_utc": "2026-05-14T10:18:47Z",
      "maximum_utc": "2026-05-14T10:22:10Z",
      "end_utc": "2026-05-14T10:25:36Z",
      "maximum_local": "2026-05-14T07:22:10-03:00",
      "max_altitude_deg": 72.08,
      "max_azimuth_deg": 224.39,
      "range_at_max_km": 451.9,
      "ground_track_distance_km": 130.2,
      "subpoint_at_max": {
        "latitude_deg": -32.63565,
        "longitude_deg": -70.26357,
        "height_km": 0.0
      },
      "sun_altitude_at_site_deg": -12.04,
      "iss_sunlit": true,
      "quality": "night_high_conjunction",
      "awe_observable": true,
      "appears": {
        "time_utc": "2026-05-14T10:18:47Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 309.52,
        "range_km": 1511.3
      },
      "disappears": {
        "time_utc": "2026-05-14T10:25:36Z",
        "altitude_deg": 10.0,
        "azimuth_deg": 138.98,
        "range_km": 1531.4
      }
    }
  ]
}
