Key statistics
Satellite COSMOS 977 at a glance.
Uptime
17286
Days in orbit
Revolutions
≈ 12.6
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for COSMOS 977.
Object identification
Identified? True
Debris? False
Object name: COSMOS 977
International designator: 1978-005B
Object number (NORAD): 10584
Object ID (CCSDS): 10584
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 114.469 minutes
Inclination: 74.029 deg
SMA: 7809.422 km
Apoapsis: 1463.227 km
Periapsis: 1399.347 km
RAAN: 165.5103 deg
Eccentricy: 0.0040899
Argument of periapsis: 358.7085 deg
Mean anomaly: 114.6002 deg
Mean motion: 12.57982021 rev/day
Mean motion (dot): 0.00000019 rev/day2
B* drag term: 0.00020756 1/REarth
Two-line elements (TLE)
Creation date: May 9, 2025, 2:46 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 8, 2025, 1:49 p.m. UTC
TLE line 0: 0 COSMOS 977
TLE line 1: 1 10584U 78005B 25128.57611256 .00000019 00000-0 20756-3 0 9992
TLE line 2: 2 10584 74.0290 165.5103 0040899 358.7085 114.6002 12.57982021160579
Live tracking on map
Real-time ground track for satellite COSMOS 977.
In-orbit conjunctions
There are no conjunctions computed for COSMOS 977, 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 977 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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