Key statistics
Satellite COSMOS 1131 at a glance.
Uptime
16882
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 1131.
Object identification
Identified? True
Debris? False
Object name: COSMOS 1131
International designator: 1979-084B
Object number (NORAD): 11539
Object ID (CCSDS): 11539
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 114.797 minutes
Inclination: 74.0263 deg
SMA: 7824.324 km
Apoapsis: 1481.307 km
Periapsis: 1411.071 km
RAAN: 28.6461 deg
Eccentricy: 0.0044883
Argument of periapsis: 110.4077 deg
Mean anomaly: 323.2785 deg
Mean motion: 12.54389875 rev/day
Mean motion (dot): -0.00000012 rev/day2
B* drag term: 0.000023047483 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 1:57 p.m. UTC
TLE line 0: 0 COSMOS 1131
TLE line 1: 1 11539U 79084B 25347.58161066 -.00000012 00000-0 23047-4 0 9995
TLE line 2: 2 11539 74.0263 28.6461 0044883 110.4077 323.2785 12.54389875116311
Live tracking on map
Real-time ground track for satellite COSMOS 1131.
Associated space launch
Biological research satellite carrying live organisms
COSMOS 1131 was lifted into orbit during the mission ‘Soyuz U | Bion 5’, on board a Soyuz U space rocket.
The launch took place on Sept. 25, 1979, 3:30 p.m. from 41/1.
For more information about the launch, click the button.
Soyuz U | Bion 5
Agency: N/A
Status: Launch Successful
Launch date: Sept. 25, 1979, 3:30 p.m. UTC
Rocket: Soyuz U
Launch pad: 41/1
Location: Plesetsk Cosmodrome, Russian Federation
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