Key statistics
Satellite SL-8 R/B at a glance.
Uptime
18211
Days in orbit
Revolutions
≈ 13.7
Per day
Orbit
LEO
Low Earth Orbit
Inclination
83.0
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: 1976-011B
Object number (NORAD): 8646
Object ID (CCSDS): 8646
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.798 minutes
Inclination: 82.9695 deg
SMA: 7363.122 km
Apoapsis: 988.445 km
Periapsis: 981.529 km
RAAN: 208.7967 deg
Eccentricy: 0.00046961
Argument of periapsis: 310.2871 deg
Mean anomaly: 165.545 deg
Mean motion: 13.74072841 rev/day
Mean motion (dot): 0.00000105 rev/day2
B* drag term: 0.000095826303 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, 3:38 a.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 08646U 76011B 25346.15189001 .00000105 00000-0 95826-4 0 9994
TLE line 2: 2 08646 82.9695 208.7967 0004696 310.2871 165.5450 13.74072841499039
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
The first soviet navigation system called Tsiklon consisted of Zaliv satellites in low earth orbit.
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Zaliv 20’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 3, 1976, 8:16 a.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Zaliv 20
Agency: N/A
Status: Launch Successful
Launch date: Feb. 3, 1976, 8:16 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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