Norad ID: 837
| Spacetrack Directory Name | OPS 3674 (VELA 4) |
| Orbit launches |
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| Deorbitation |
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| Country/organisation of origin | USA (US) |
| Starting point | AFETR (Kennedy Space Center/Cape Canaveral, USA) |
| Perigee | 51649 km |
| Apogee | 154334 km |
OPS 3674 (VELA 4), 837 is a payload satellite owned by USAF SSD (US) in HEO that was launched on Fri, 17 Jul 1964 UTC via an ATLAS AGENA D 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 OPS 3674 (VELA 4) Date of exalting 17.07.1964y.