Norad ID: 1090
| Spacetrack Directory Name | COSMOS 55 |
| Orbit launches |
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| Deorbitation date |
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| Days in orbit | 1076 |
| Country/organisation of origin | Commonwealth of Independent States (former USSR) (CIS) |
| Starting point | TYMSC (Baikonur Cosmodrome, Kazakhstan) |
COSMOS 55, 1090 was a payload satellite owned by OKB-10 (CIS) that was launched on Sun, 21 Feb 1965 UTC via a KOSMOS 65S3 launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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.