Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12575
Days in orbit
Revolutions
≈ 12.2
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: 1991-009M
Object number (NORAD): 21115
Object ID (CCSDS): 21115
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 118.335 minutes
Inclination: 74.0401 deg
SMA: 7984.256 km
Apoapsis: 1752.523 km
Periapsis: 1459.72 km
RAAN: 355.5557 deg
Eccentricy: 0.0183363
Argument of periapsis: 153.9833 deg
Mean anomaly: 235.1825 deg
Mean motion: 12.16889217 rev/day
Mean motion (dot): 0.00000162 rev/day2
B* drag term: 0.0016736 1/REarth
Two-line elements (TLE)
Creation date: July 17, 2025, 3:50 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 16, 2025, 5:30 p.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 21115U 91009M 25197.72965723 .00000162 00000-0 16736-2 0 9998
TLE line 2: 2 21115 74.0401 355.5557 0183363 153.9833 235.1825 12.16889217528375
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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