Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12682
Days in orbit
Revolutions
≈ 12.3
Per day
Orbit
LEO
Low Earth Orbit
Inclination
73.9
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: 1991-009BV
Object number (NORAD): 21406
Object ID (CCSDS): 21406
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 116.902 minutes
Inclination: 73.9166 deg
SMA: 7919.706 km
Apoapsis: 1649.054 km
Periapsis: 1434.087 km
RAAN: 18.0138 deg
Eccentricy: 0.0135716
Argument of periapsis: 18.7623 deg
Mean anomaly: 40.7109 deg
Mean motion: 12.31797195 rev/day
Mean motion (dot): 0.00000072 rev/day2
B* drag term: 0.00070899 1/REarth
Two-line elements (TLE)
Creation date: Oct. 31, 2025, 6:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 31, 2025, 6:17 a.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 21406U 91009BV 25304.26193611 .00000072 00000-0 70899-3 0 9990
TLE line 2: 2 21406 73.9166 18.0138 0135716 18.7623 40.7109 12.31797195552433
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
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