Key statistics
Satellite SL-8 DEB * at a glance.
Uptime
17371
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: 96.26 minutes
Inclination: 74.0228 deg
SMA: 6957.546 km
Apoapsis: 580.046 km
Periapsis: 578.776 km
RAAN: 176.2221 deg
Eccentricy: 0.0000912
Argument of periapsis: 354.4527 deg
Mean anomaly: 155.814 deg
Mean motion: 14.95955349 rev/day
Mean motion (dot): 0.00007616 rev/day2
B* drag term: 0.00068241 1/REarth
Two-line elements (TLE)
Creation date: July 7, 2025, 6:34 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 9:29 a.m. UTC
TLE line 0: 0 SL-8 DEB *
TLE line 1: 1 18512U 77119E 25188.39568641 .00007616 00000-0 68241-3 0 9992
TLE line 2: 2 18512 74.0228 176.2221 0000912 354.4527 155.8140 14.95955349156757
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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