Key statistics
Satellite SL-8 DEB at a glance.
Uptime
13014
Days in orbit
Revolutions
≈ 14.6
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: 1990-004D
Object number (NORAD): 20435
Object ID (CCSDS): 20435
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 98.411 minutes
Inclination: 74.0255 deg
SMA: 7060.833 km
Apoapsis: 692.652 km
Periapsis: 672.743 km
RAAN: 138.1856 deg
Eccentricy: 0.00140979
Argument of periapsis: 212.6652 deg
Mean anomaly: 269.1975 deg
Mean motion: 14.63251227 rev/day
Mean motion (dot): 0.00003961 rev/day2
B* drag term: 0.00077291813 1/REarth
Two-line elements (TLE)
Creation date: Sept. 4, 2025, 10:13 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 4, 2025, 1:28 a.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 20435U 90004D 25247.06161388 .00003961 00000-0 77292-3 0 9999
TLE line 2: 2 20435 74.0255 138.1856 0014098 212.6652 269.1975 14.63251227880544
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 47’, on board a Kosmos-3M space rocket.
The launch took place on Jan. 18, 1990, 12:52 p.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 47
Agency: N/A
Status: Launch Successful
Launch date: Jan. 18, 1990, 12:52 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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