Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16356
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
65.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-8 R/B.
Object identification
Identified? True
Debris? False
Object name: SL-8 R/B
International designator: 1981-006B
Object number (NORAD): 12150
Object ID (CCSDS): 12150
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.541 minutes
Inclination: 65.8222 deg
SMA: 7351.097 km
Apoapsis: 1007.547 km
Periapsis: 938.377 km
RAAN: 44.2881 deg
Eccentricy: 0.0047047
Argument of periapsis: 153.9489 deg
Mean anomaly: 206.3958 deg
Mean motion: 13.77445815 rev/day
Mean motion (dot): -0.00000038 rev/day2
B* drag term: 0.000042597 1/REarth
Two-line elements (TLE)
Creation date: Oct. 31, 2025, 10:56 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 31, 2025, 4:05 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 12150U 81006B 25304.67031488 -.00000038 00000-0 42597-4 0 9998
TLE line 2: 2 12150 65.8222 44.2881 0047047 153.9489 206.3958 13.77445815250065
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
ASAT target satellite
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | DS-P1-M 15’, on board a Kosmos-3M space rocket.
The launch took place on Jan. 21, 1981, 8:29 a.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | DS-P1-M 15
Agency: N/A
Status: Launch Successful
Launch date: Jan. 21, 1981, 8:29 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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