Norad ID: 3595
| Spacetrack Directory Name | HEOS-A1 |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 2518 |
| Country/organisation of origin | European Space Research Organization (ESRO) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
HEOS 1, 3595 was a payload satellite owned by ESRO (EU) that was launched on Thu, 05 Dec 1968 UTC via a THOR DELTA E1 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.