Key statistics
Satellite SL-8 DEB at a glance.
Uptime
17520
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
83.0
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: 1977-087C
Object number (NORAD): 24818
Object ID (CCSDS): 24818
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 104.199 minutes
Inclination: 82.9684 deg
SMA: 7335.019 km
Apoapsis: 981.525 km
Periapsis: 932.243 km
RAAN: 310.8607 deg
Eccentricy: 0.00335934
Argument of periapsis: 157.5419 deg
Mean anomaly: 220.1117 deg
Mean motion: 13.81977248 rev/day
Mean motion (dot): 0.00000477 rev/day2
B* drag term: 0.00042848197 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 10:56 a.m. UTC
TLE line 0: 0 SL-8 DEB
TLE line 1: 1 24818U 77087C 25242.45617080 .00000477 00000-0 42848-3 0 9995
TLE line 2: 2 24818 82.9684 310.8607 0033593 157.5419 220.1117 13.81977248409470
Live tracking on map
Real-time ground track for satellite SL-8 DEB.
Associated space launch
The soviet Zenit-2M (Gektor, 11F690) was an improved version of the Zenit-2 area surveillance reconnaissance satellite. It was part of the Vostok-based Zenit-family.
SL-8 DEB was lifted into orbit during the mission ‘Soyuz U | Zenit-2M 81’, on board a Soyuz U space rocket.
The launch took place on Sept. 13, 1977, 3:10 p.m. from 43/3 (43L).
For more information about the launch, click the button.
Soyuz U | Zenit-2M 81
Agency: N/A
Status: Launch Successful
Launch date: Sept. 13, 1977, 3:10 p.m. UTC
Rocket: Soyuz U
Launch pad: 43/3 (43L)
Location: Plesetsk Cosmodrome, Russian Federation
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