Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16146
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: 82.9145 deg
SMA: 7346.034 km
Apoapsis: 993.846 km
Periapsis: 941.951 km
RAAN: 253.0845 deg
Eccentricy: 0.00353212
Argument of periapsis: 64.1913 deg
Mean anomaly: 296.2882 deg
Mean motion: 13.78870253 rev/day
Mean motion (dot): 0.00000137 rev/day2
B* drag term: 0.0001187691 1/REarth
Two-line elements (TLE)
Creation date: Oct. 25, 2025, 3:11 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 24, 2025, 11:18 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 12682U 81077B 25297.97098736 .00000137 00000-0 11877-3 0 9994
TLE line 2: 2 12682 82.9145 253.0845 0035321 64.1913 296.2882 13.78870253223104
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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