COSMOS 621

6989
Spacetrack Directory Number
1973-12-19
Orbit launches
1456.13 km
Average height
25689.49 km/h
Average velocity


Satellite information COSMOS 621

Spacetrack Directory Name COSMOS 621
Follow COSMOS 621 COSMOS 621 Tracker
Pass predictions COSMOS 621 Pass predictions COSMOS 621
Orbit launches 1973-12-19 (52 years ago)
Days in orbit 19287
Country/organisation of origin Commonwealth of Independent States (former USSR) (CIS)
Starting point PLMSC (Plesetsk Missile and Space Complex, Russia)
Perigee 1406 km
Apogee 1485 km
Orbit slope (inclination) 74.03°
Laps per day 13
Height COSMOS 621 1456.13 km

Additional information COSMOS 621

COSMOS 621, 6989 is a payload satellite owned by GUKOS RVSN (CIS) in LEO that was launched on Wed, 19 Dec 1973 UTC via a KOSMOS 11K65M launch vehicle from the Plesetsk Missile And Space Complex (PKMTR). 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 COSMOS 621 Date of exalting 19.12.1973y. Average height of ISS COSMOS 621 hundred 1456.13 km. Average velocity COSMOS 621 is 25689.49 km/h. Inclination COSMOS 621 satellite 74.03°.

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Average orbit height COSMOS 621

Average velocity COSMOS 621

Average inclination COSMOS 621

Mean right ascension of the ascending node (RAAN) COSMOS 621

Mean argument of perigee COSMOS 621

Mean semi-major axis of the orbit COSMOS 621

Mean orbital eccentricity COSMOS 621

Update time: 2026-10-08 19:30:14
Average height of ISS COSMOS 621 is: 1456.13km
Average velocity COSMOS 621 is: 25689.49km/h
Average orbit height COSMOS 621 is: 74.03°
COSMOS 621 a new group of Starlink satellites has been launched 1973-12-19
COSMOS 621 is from 19287 days Days in orbit.