COSMOS 521

6206
Spacetrack Directory Number
1972-09-29
Orbit launches
1000.24 km
Average height
26472.09 km/h
Average velocity


Satellite information COSMOS 521

Spacetrack Directory Name COSMOS 521
Follow COSMOS 521 COSMOS 521 Tracker
Pass predictions COSMOS 521 Pass predictions COSMOS 521
Orbit launches 1972-09-29 (54 years ago)
Days in orbit 19734
Country/organisation of origin Commonwealth of Independent States (former USSR) (CIS)
Starting point PLMSC (Plesetsk Missile and Space Complex, Russia)
WWW Here
Perigee 977 km
Apogee 1005 km
Orbit slope (inclination) 65.83°
Laps per day 14
Height COSMOS 521 1000.24 km

Additional information COSMOS 521

COSMOS 521, 6206 is a payload satellite owned by PKO (CIS) in LEO that was launched on Fri, 29 Sep 1972 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 521 Date of exalting 29.09.1972y. Average height of ISS COSMOS 521 hundred 1000.24 km. Average velocity COSMOS 521 is 26472.09 km/h. Inclination COSMOS 521 satellite 65.83°.

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Average orbit height COSMOS 521

Average velocity COSMOS 521

Average inclination COSMOS 521

Mean right ascension of the ascending node (RAAN) COSMOS 521

Mean argument of perigee COSMOS 521

Mean semi-major axis of the orbit COSMOS 521

Mean orbital eccentricity COSMOS 521

Update time: 2026-10-09 19:30:13
Average height of ISS COSMOS 521 is: 1000.24km
Average velocity COSMOS 521 is: 26472.09km/h
Average orbit height COSMOS 521 is: 65.83°
COSMOS 521 a new group of Starlink satellites has been launched 1972-09-29
COSMOS 521 is from 19734 days Days in orbit.