Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12788
Days in orbit
Revolutions
≈ 14.4
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: 1990-111D
Object number (NORAD): 25563
Object ID (CCSDS): 25563
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 99.748 minutes
Inclination: 74.0488 deg
SMA: 7124.64 km
Apoapsis: 759.527 km
Periapsis: 733.482 km
RAAN: 261.8762 deg
Eccentricy: 0.00182785
Argument of periapsis: 35.8239 deg
Mean anomaly: 114.1587 deg
Mean motion: 14.43638306 rev/day
Mean motion (dot): 0.00002151 rev/day2
B* drag term: 0.00064039309 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 4:53 a.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 25563U 90111D 25346.20390383 .00002151 00000-0 64039-3 0 9995
TLE line 2: 2 25563 74.0488 261.8762 0018278 35.8239 114.1587 14.43638306831447
Live tracking on map
Real-time ground track for satellite SL-8 DEB.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SL-8 DEB.
Associated space launch
Military communications satellite
SL-8 DEB was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 48’, on board a Kosmos-3M space rocket.
The launch took place on Dec. 10, 1990, 7:54 a.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 48
Agency: N/A
Status: Launch Successful
Launch date: Dec. 10, 1990, 7:54 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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