Key statistics
Satellite SL-8 R/B at a glance.
Uptime
15606
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: 1983-021B
Object number (NORAD): 13917
Object ID (CCSDS): 13917
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.567 minutes
Inclination: 82.9431 deg
SMA: 7352.314 km
Apoapsis: 994.772 km
Periapsis: 953.587 km
RAAN: 102.0769 deg
Eccentricy: 0.00280079
Argument of periapsis: 208.0679 deg
Mean anomaly: 267.0093 deg
Mean motion: 13.77103775 rev/day
Mean motion (dot): 0.00000079 rev/day2
B* drag term: 0.000064005899 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, 4:31 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 13917U 83021B 25347.68880627 .00000079 00000-0 64006-4 0 9997
TLE line 2: 2 13917 82.9431 102.0769 0028008 208.0679 267.0093 13.77103775146149
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Civilian navigation satellite equivalent to the purely military Parus
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Nadezhda 2’, on board a Kosmos-3M space rocket.
The launch took place on March 24, 1983, 8:55 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Nadezhda 2
Agency: N/A
Status: Launch Successful
Launch date: March 24, 1983, 8:55 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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