Norad ID: 12309
| Spacetrack Directory Name | ESIAFI 1 (COMSTAR 4) |
| Follow ESIAFI 1 (COMSTAR 4) | ESIAFI 1 (COMSTAR 4) Tracker |
| Pass predictions ESIAFI 1 (COMSTAR 4) | Pass predictions ESIAFI 1 (COMSTAR 4) |
| Orbit launches |
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| Days in orbit | 16635 |
| Country/organisation of origin | USA (US) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
| Perigee | 35761 km |
| Apogee | 35805 km |
| Orbit slope (inclination) | 8.55° |
| Laps per day | 1 |
| Height ESIAFI 1 (COMSTAR 4) | 35784.17 km |
ESIAFI 1 (COMSTAR 4), 12309 is a payload satellite owned by Comsat (US) in GEO that was launched on Sat, 21 Feb 1981 UTC via an ATLAS SLV-3D CENTAUR launch vehicle from the Air Force Eastern Test Range (AFETR). Payloads include a variety of satellites, spacecraft, and rockets equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
satellite ESIAFI 1 (COMSTAR 4) Date of exalting 21.02.1981y. Average height of ISS ESIAFI 1 (COMSTAR 4) hundred 35784.17 km. Average velocity ESIAFI 1 (COMSTAR 4) is 11069.26 km/h. Inclination ESIAFI 1 (COMSTAR 4) satellite 8.57°.