Key statistics
Satellite SL-8 R/B at a glance.
Uptime
18455
Days in orbit
Revolutions
≈ 12.2
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-8 R/B.
Object identification
Identified? True
Debris? False
Object name: SL-8 R/B
International designator: 1975-016J
Object number (NORAD): 7686
Object ID (CCSDS): 7686
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 117.925 minutes
Inclination: 74.0021 deg
SMA: 7965.816 km
Apoapsis: 1718.791 km
Periapsis: 1456.57 km
RAAN: 161.7362 deg
Eccentricy: 0.01645918
Argument of periapsis: 325.5409 deg
Mean anomaly: 101.4079 deg
Mean motion: 12.21117302 rev/day
Mean motion (dot): -0.00000012 rev/day2
B* drag term: 0.000025861349 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 10:02 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 07686U 75016J 25250.91845980 -.00000012 00000-0 25861-4 0 9994
TLE line 2: 2 07686 74.0021 161.7362 0164592 325.5409 101.4079 12.21117302251789
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Military communications satellites
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 81-88’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 28, 1975, 2:01 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 81-88
Agency: N/A
Status: Launch Successful
Launch date: Feb. 28, 1975, 2:01 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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