Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12631
Days in orbit
Revolutions
≈ 12.3
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
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: 1991-009CT
Object number (NORAD): 21234
Object ID (CCSDS): 21234
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 116.802 minutes
Inclination: 74.0097 deg
SMA: 7915.156 km
Apoapsis: 1637.379 km
Periapsis: 1436.662 km
RAAN: 140.7222 deg
Eccentricy: 0.01267928
Argument of periapsis: 287.1807 deg
Mean anomaly: 235.3218 deg
Mean motion: 12.32859408 rev/day
Mean motion (dot): 0.00000009 rev/day2
B* drag term: 0.00019570539 1/REarth
Two-line elements (TLE)
Creation date: Sept. 11, 2025, 10:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 11, 2025, 4:14 a.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 21234U 91009CT 25254.17694741 .00000009 00000-0 19571-3 0 9993
TLE line 2: 2 21234 74.0097 140.7222 0126793 287.1807 235.3218 12.32859408552255
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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