Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12731
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 DEB.
Object identification
Identified? True
Debris? True
Object name: SL-8 DEB
International designator: 1991-007C
Object number (NORAD): 21091
Object ID (CCSDS): 21091
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 104.277 minutes
Inclination: 82.9309 deg
SMA: 7338.706 km
Apoapsis: 979.972 km
Periapsis: 941.17 km
RAAN: 61.8478 deg
Eccentricy: 0.00264363
Argument of periapsis: 257.1689 deg
Mean anomaly: 267.8025 deg
Mean motion: 13.80935875 rev/day
Mean motion (dot): 0.00000353 rev/day2
B* drag term: 0.00032015551 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 DEB
TLE line 1: 1 21091U 91007C 25347.68851565 .00000353 00000-0 32016-3 0 9991
TLE line 2: 2 21091 82.9309 61.8478 0026436 257.1689 267.8025 13.80935875753520
Live tracking on map
Real-time ground track for satellite SL-8 DEB.
Associated space launch
Civilian navigation satellite equivalent to the purely military Parus
SL-8 DEB was lifted into orbit during the mission ‘Kosmos-3M | Tsikada 17’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 5, 1991, 2:36 a.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Tsikada 17
Agency: N/A
Status: Launch Successful
Launch date: Feb. 5, 1991, 2:36 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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