Key statistics
Satellite SL-8 R/B at a glance.
Uptime
17700
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: 1977-004B
Object number (NORAD): 9738
Object ID (CCSDS): 9738
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.812 minutes
Inclination: 82.9617 deg
SMA: 7363.76 km
Apoapsis: 997.68 km
Periapsis: 973.57 km
RAAN: 14.5224 deg
Eccentricy: 0.0016371
Argument of periapsis: 356.3172 deg
Mean anomaly: 114.1689 deg
Mean motion: 13.73894295 rev/day
Mean motion (dot): -0.00000005 rev/day2
B* drag term: -0.000021154 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:36 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 10:01 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 9738U 77004B 25187.91790943 -.00000005 00000-0 -21154-4 0 9994
TLE line 2: 2 9738 82.9617 14.5224 0016371 356.3172 114.1689 13.73894295428785
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object 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 23’, on board a Kosmos-3M space rocket.
The launch took place on Jan. 20, 1977, 8:05 p.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Zaliv 23
Agency: N/A
Status: Launch Successful
Launch date: Jan. 20, 1977, 8:05 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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