Key statistics
Satellite COSMOS 921 at a glance.
Uptime
17610
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: 96.252 minutes
Inclination: 75.8341 deg
SMA: 6957.202 km
Apoapsis: 604.298 km
Periapsis: 553.835 km
RAAN: 333.119 deg
Eccentricy: 0.00362668
Argument of periapsis: 347.2011 deg
Mean anomaly: 12.8259 deg
Mean motion: 14.96066341 rev/day
Mean motion (dot): 0.00000998 rev/day2
B* drag term: 0.000089634827 1/REarth
Two-line elements (TLE)
Creation date: Sept. 9, 2025, 10:35 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 9, 2025, 6:53 a.m. UTC
TLE line 0: 0 COSMOS 921
TLE line 1: 1 10095U 77055A 25252.28743056 .00000998 00000-0 89635-4 0 9991
TLE line 2: 2 10095 75.8341 333.1190 0036267 347.2011 12.8259 14.96066341612384
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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