Key statistics
Satellite COSMOS 981 at a glance.
Uptime
17458
Days in orbit
Revolutions
≈ 12.5
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 981.
Object identification
Identified? True
Debris? False
Object name: COSMOS 981
International designator: 1978-005F
Object number (NORAD): 10588
Object ID (CCSDS): 10588
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 115.527 minutes
Inclination: 74.0304 deg
SMA: 7857.462 km
Apoapsis: 1494.768 km
Periapsis: 1463.887 km
RAAN: 72.5397 deg
Eccentricy: 0.0019651
Argument of periapsis: 124.1516 deg
Mean anomaly: 355.7593 deg
Mean motion: 12.46462749 rev/day
Mean motion (dot): -0.00000001 rev/day2
B* drag term: 0.000098070697 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 2:18 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 27, 2025, 8:53 p.m. UTC
TLE line 0: 0 COSMOS 981
TLE line 1: 1 10588U 78005F 25300.87025312 -.00000001 00000-0 98071-4 0 9991
TLE line 2: 2 10588 74.0304 72.5397 0019651 124.1516 355.7593 12.46462749171435
Live tracking on map
Real-time ground track for satellite COSMOS 981.
In-orbit conjunctions
There are no conjunctions computed for COSMOS 981, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Tselina-D satellites provided detailed observation of radio sources detected by the smaller Tselina-O satellites as part of the Tselina ELINT system.
COSMOS 981 was lifted into orbit during the mission ‘Vostok 8A92M | Tselina-D 14’, on board a Vostok 8A92M space rocket.
The launch took place on Jan. 10, 1978, 1:23 p.m. from 43/4 (43R).
For more information about the launch, click the button.
Vostok 8A92M | Tselina-D 14
Agency: N/A
Status: Launch Successful
Launch date: Jan. 10, 1978, 1:23 p.m. UTC
Rocket: Vostok 8A92M
Launch pad: 43/4 (43R)
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
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