Key statistics
Satellite SL-8 R/B at a glance.
Uptime
17667
Days in orbit
Revolutions
≈ 13.8
Per day
Orbit
LEO
Low Earth Orbit
Inclination
82.9
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: 1976-128B
Object number (NORAD): 9638
Object ID (CCSDS): 9638
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.461 minutes
Inclination: 82.9401 deg
SMA: 7347.314 km
Apoapsis: 992.873 km
Periapsis: 945.484 km
RAAN: 52.0666 deg
Eccentricy: 0.0032249
Argument of periapsis: 126.4847 deg
Mean anomaly: 233.929 deg
Mean motion: 13.78509889 rev/day
Mean motion (dot): 0.00000069 rev/day2
B* drag term: 0.000052993 1/REarth
Two-line elements (TLE)
Creation date: May 12, 2025, 2:31 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 11, 2025, 9:43 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 09638U 76128B 25131.90532454 .00000069 00000-0 52993-4 0 9991
TLE line 2: 2 09638 82.9401 52.0666 0032249 126.4847 233.9290 13.78509889431856
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Molniya communication satellites operating from a highly elliptical orbit
SL-8 R/B was lifted into orbit during the mission ‘Molniya-M | Molniya-3 17L’, on board a Molniya-M space rocket.
The launch took place on Dec. 28, 1976, 6:38 a.m. from 43/4 (43R).
For more information about the launch, click the button.
Molniya-M | Molniya-3 17L
Agency: N/A
Status: Launch Successful
Launch date: Dec. 28, 1976, 6:38 a.m. UTC
Rocket: Molniya-M
Launch pad: 43/4 (43R)
Location: Plesetsk Cosmodrome, Russian Federation
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