Key statistics
Satellite COSMOS 951 at a glance.
Uptime
17464
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: 82.9687 deg
SMA: 7362.28 km
Apoapsis: 1008.138 km
Periapsis: 960.152 km
RAAN: 67.7661 deg
Eccentricy: 0.0032589
Argument of periapsis: 259.047 deg
Mean anomaly: 161.9012 deg
Mean motion: 13.74308526 rev/day
Mean motion (dot): 0.00000042 rev/day2
B* drag term: 0.000028995 1/REarth
Two-line elements (TLE)
Creation date: July 5, 2025, 5:45 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 5, 2025, 3:08 p.m. UTC
TLE line 0: 0 COSMOS 951
TLE line 1: 1 10352U 77087A 25186.63064728 .00000042 00000-0 28995-4 0 9991
TLE line 2: 2 10352 82.9687 67.7661 0032589 259.0470 161.9012 13.74308526396883
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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