Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16995
Days in orbit
Revolutions
≈ 13.2
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: 1978-122B
Object number (NORAD): 11170
Object ID (CCSDS): 11170
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 108.913 minutes
Inclination: 82.9709 deg
SMA: 7554.648 km
Apoapsis: 1195.568 km
Periapsis: 1157.458 km
RAAN: 50.4261 deg
Eccentricy: 0.0025223
Argument of periapsis: 183.4832 deg
Mean anomaly: 245.6599 deg
Mean motion: 13.22152004 rev/day
Mean motion (dot): 0.00000082 rev/day2
B* drag term: 0.00016627 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 5:53 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 11170U 78122B 25187.74541294 .00000082 00000-0 16627-3 0 9994
TLE line 2: 2 11170 82.9709 50.4261 0025223 183.4832 245.6599 13.22152004244930
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
High-resolution film-return Zenit reconnaissance satellite
SL-8 R/B was lifted into orbit during the mission ‘Soyuz U | Zenit-4MKM 25’, on board a Soyuz U space rocket.
The launch took place on Dec. 26, 1978, 3:30 p.m. from 43/4 (43R).
For more information about the launch, click the button.
Soyuz U | Zenit-4MKM 25
Agency: N/A
Status: Launch Successful
Launch date: Dec. 26, 1978, 3:30 p.m. UTC
Rocket: Soyuz U
Launch pad: 43/4 (43R)
Location: Plesetsk Cosmodrome, Russian Federation
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