COSMOS 521

6206
Spacetrack Directory Number
1972-09-29
Orbit launches


Satellite information COSMOS 521

Spacetrack Directory Name COSMOS 521
Orbit launches 1972-09-29
Deorbitation
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

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.


Update time: 2026-04-17 00:51:17
COSMOS 521 a new group of Starlink satellites has been launched 1972-09-29