Norad ID: 4166
| Spacetrack Directory Name | SOICAL [CYLINDER] |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 19495 |
| Country/organisation of origin | USA (US) |
| Starting point | AFWTR (Vandenberg Air Force Base, USA) |
| Perigee | 567 km |
| Apogee | 571 km |
SOICAL (CYLINDER), 4166 was a payload satellite owned by NRL (US) that was launched on Tue, 30 Sep 1969 UTC via a THORAD SLV-2G AGENA D launch vehicle from the Air Force Western Test Range (AFWTR). 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.