Key statistics
Satellite SL-8 DEB * at a glance.
Uptime
17530
Days in orbit
Revolutions
≈ 15.0
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: 1977-119E
Object number (NORAD): 18512
Object ID (CCSDS): 18512
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 95.99 minutes
Inclination: 74.0233 deg
SMA: 6944.559 km
Apoapsis: 567.804 km
Periapsis: 565.044 km
RAAN: 213.3802 deg
Eccentricy: 0.00019874
Argument of periapsis: 106.1944 deg
Mean anomaly: 310.757 deg
Mean motion: 15.00153732 rev/day
Mean motion (dot): 0.00011887 rev/day2
B* drag term: 0.00095333209 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 4:28 p.m. UTC
TLE line 0: 0 SL-8 DEB *
TLE line 1: 1 18512U 77119E 25347.68611396 .00011887 00000-0 95333-3 0 9994
TLE line 2: 2 18512 74.0233 213.3802 0001987 106.1944 310.7570 15.00153732180602
Live tracking on map
Real-time ground track for satellite SL-8 DEB *.
Associated space launch
Military communications satellite
SL-8 DEB * was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 16’, on board a Kosmos-3M space rocket.
The launch took place on Dec. 16, 1977, 4:25 a.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 16
Agency: N/A
Status: Launch Successful
Launch date: Dec. 16, 1977, 4:25 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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