Key statistics
Satellite COSMOS 951 at a glance.
Uptime
17524
Days in orbit
Revolutions
≈ 13.7
Per day
Orbit
LEO
Low Earth Orbit
Inclination
83.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 951.
Object identification
Identified? True
Debris? False
Object name: COSMOS 951
International designator: 1977-087A
Object number (NORAD): 10352
Object ID (CCSDS): 10352
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.78 minutes
Inclination: 82.9713 deg
SMA: 7362.263 km
Apoapsis: 1010.133 km
Periapsis: 958.123 km
RAAN: 23.8868 deg
Eccentricy: 0.00353218
Argument of periapsis: 93.4098 deg
Mean anomaly: 80.537 deg
Mean motion: 13.74313333 rev/day
Mean motion (dot): 0.00000094 rev/day2
B* drag term: 0.00008303754 1/REarth
Two-line elements (TLE)
Creation date: Sept. 3, 2025, 10:15 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 3, 2025, 3:14 a.m. UTC
TLE line 0: 0 COSMOS 951
TLE line 1: 1 10352U 77087A 25246.13500715 .00000094 00000-0 83038-4 0 9990
TLE line 2: 2 10352 82.9713 23.8868 0035322 93.4098 80.5370 13.74313333405054
Live tracking on map
Real-time ground track for satellite COSMOS 951.
Associated space launch
The soviet Zenit-2M (Gektor, 11F690) was an improved version of the Zenit-2 area surveillance reconnaissance satellite. It was part of the Vostok-based Zenit-family.
COSMOS 951 was lifted into orbit during the mission ‘Soyuz U | Zenit-2M 81’, on board a Soyuz U space rocket.
The launch took place on Sept. 13, 1977, 3:10 p.m. from 43/3 (43L).
For more information about the launch, click the button.
Soyuz U | Zenit-2M 81
Agency: N/A
Status: Launch Successful
Launch date: Sept. 13, 1977, 3:10 p.m. UTC
Rocket: Soyuz U
Launch pad: 43/3 (43L)
Location: Plesetsk Cosmodrome, Russian Federation
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