Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12682
Days in orbit
Revolutions
≈ 12.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.1
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: 1991-009BK
Object number (NORAD): 21252
Object ID (CCSDS): 21252
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 117.555 minutes
Inclination: 74.1079 deg
SMA: 7949.155 km
Apoapsis: 1671.631 km
Periapsis: 1470.41 km
RAAN: 47.1536 deg
Eccentricy: 0.01265678
Argument of periapsis: 4.2476 deg
Mean anomaly: 147.0783 deg
Mean motion: 12.24958217 rev/day
Mean motion (dot): -0.00000012 rev/day2
B* drag term: 0.000024113407 1/REarth
Two-line elements (TLE)
Creation date: Oct. 31, 2025, 3 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 30, 2025, 5:19 p.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 21252U 91009BK 25303.72164375 -.00000012 00000-0 24113-4 0 9998
TLE line 2: 2 21252 74.1079 47.1536 0126568 4.2476 147.0783 12.24958217548906
Live tracking on map
Real-time ground track for satellite SL-8 DEB.
Associated space launch
Military communications satellites
SL-8 DEB was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 353-360’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 12, 1991, 2:44 a.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 353-360
Agency: N/A
Status: Launch Successful
Launch date: Feb. 12, 1991, 2:44 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
