Key statistics
Satellite SL-8 R/B at a glance.
Uptime
17883
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: 104.458 minutes
Inclination: 82.9384 deg
SMA: 7347.193 km
Apoapsis: 990.994 km
Periapsis: 947.122 km
RAAN: 252.2203 deg
Eccentricy: 0.00298567
Argument of periapsis: 246.1546 deg
Mean anomaly: 113.6483 deg
Mean motion: 13.78543803 rev/day
Mean motion (dot): 0.00000104 rev/day2
B* drag term: 0.000087403191 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 5:47 a.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 09638U 76128B 25346.24130715 .00000104 00000-0 87403-4 0 9994
TLE line 2: 2 09638 82.9384 252.2203 0029857 246.1546 113.6483 13.78543803461387
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
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
