Key statistics
Satellite COSMOS 921 at a glance.
Uptime
17546
Days in orbit
Revolutions
≈ 15.0
Per day
Orbit
LEO
Low Earth Orbit
Inclination
75.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 921.
Object identification
Identified? True
Debris? False
Object name: COSMOS 921
International designator: 1977-055A
Object number (NORAD): 10095
Object ID (CCSDS): 10095
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 96.261 minutes
Inclination: 75.8323 deg
SMA: 6957.606 km
Apoapsis: 604.403 km
Periapsis: 554.539 km
RAAN: 88.9856 deg
Eccentricy: 0.0035834
Argument of periapsis: 155.8242 deg
Mean anomaly: 204.4645 deg
Mean motion: 14.95936006 rev/day
Mean motion (dot): 0.00000597 rev/day2
B* drag term: 0.000054557 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:46 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 7:37 p.m. UTC
TLE line 0: 0 COSMOS 921
TLE line 1: 1 10095U 77055A 25187.81788742 .00000597 00000-0 54557-4 0 9998
TLE line 2: 2 10095 75.8323 88.9856 0035834 155.8242 204.4645 14.95936006602960
Live tracking on map
Real-time ground track for satellite COSMOS 921.
In-orbit conjunctions
A list of the most updated potential collisions computed for object COSMOS 921.
Associated space launch
Dynamic simulator of the Tselina-D ELINT satellite
COSMOS 921 was lifted into orbit during the mission ‘Tsiklon-3 | EPN 03.0380 1’, on board a Tsiklon-3 space rocket.
The launch took place on June 24, 1977, 10:30 a.m. from 32/2.
For more information about the launch, click the button.
Tsiklon-3 | EPN 03.0380 1
Agency: N/A
Status: Launch Successful
Launch date: June 24, 1977, 10:30 a.m. UTC
Rocket: Tsiklon-3
Launch pad: 32/2
Location: Plesetsk Cosmodrome, Russian Federation
...
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