Key statistics
Satellite SL-8 DEB at a glance.
Uptime
12735
Days in orbit
Revolutions
≈ 14.4
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: 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: 99.762 minutes
Inclination: 74.05 deg
SMA: 7125.287 km
Apoapsis: 760.207 km
Periapsis: 734.097 km
RAAN: 357.624 deg
Eccentricy: 0.0018322
Argument of periapsis: 150.5355 deg
Mean anomaly: 4.2093 deg
Mean motion: 14.43441733 rev/day
Mean motion (dot): 0.00001943 rev/day2
B* drag term: 0.00058156 1/REarth
Two-line elements (TLE)
Creation date: Oct. 22, 2025, 12:06 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 21, 2025, 3:26 p.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 25563U 90111D 25294.64374404 .00001943 00000-0 58156-3 0 9992
TLE line 2: 2 25563 74.0500 357.6240 0018322 150.5355 4.2093 14.43441733824002
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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