Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16195
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
82.9
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: 1981-077B
Object number (NORAD): 12682
Object ID (CCSDS): 12682
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.433 minutes
Inclination: 82.9163 deg
SMA: 7345.998 km
Apoapsis: 991.934 km
Periapsis: 943.792 km
RAAN: 215.8905 deg
Eccentricy: 0.00327673
Argument of periapsis: 284.6046 deg
Mean anomaly: 75.1479 deg
Mean motion: 13.78880329 rev/day
Mean motion (dot): 0.00000125 rev/day2
B* drag term: 0.0001078568 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, 4:15 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 12682U 81077B 25347.67712768 .00000125 00000-0 10786-3 0 9990
TLE line 2: 2 12682 82.9163 215.8905 0032767 284.6046 75.1479 13.78880329229954
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SL-8 R/B.
Associated space launch
Navigation satellite providing location information for the Tsiklon-B navigation system
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Parus 28’, on board a Kosmos-3M space rocket.
The launch took place on Aug. 12, 1981, 5:46 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Parus 28
Agency: N/A
Status: Launch Successful
Launch date: Aug. 12, 1981, 5:46 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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