Key statistics
Satellite COSMOS 2125 at a glance.
Uptime
12627
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 2125.
Object identification
Identified? True
Debris? False
Object name: COSMOS 2125
International designator: 1991-009A
Object number (NORAD): 21100
Object ID (CCSDS): 21100
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 115.204 minutes
Inclination: 74.0337 deg
SMA: 7842.795 km
Apoapsis: 1472.946 km
Periapsis: 1456.374 km
RAAN: 335.9483 deg
Eccentricy: 0.00105651
Argument of periapsis: 264.6472 deg
Mean anomaly: 160.4548 deg
Mean motion: 12.49960945 rev/day
Mean motion (dot): -0.00000001 rev/day2
B* drag term: 0.000096662773 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 2:13 p.m. UTC
TLE line 0: 0 COSMOS 2125
TLE line 1: 1 21100U 91009A 25250.59269856 -.00000001 00000-0 96663-4 0 9993
TLE line 2: 2 21100 74.0337 335.9483 0010565 264.6472 160.4548 12.49960945577425
Live tracking on map
Real-time ground track for satellite COSMOS 2125.
Associated space launch
Military communications satellites
COSMOS 2125 was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 353-360’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 12, 1991, 2:44 a.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 353-360
Agency: N/A
Status: Launch Successful
Launch date: Feb. 12, 1991, 2:44 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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