Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16946
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: 1979-046B
Object number (NORAD): 11379
Object ID (CCSDS): 11379
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.519 minutes
Inclination: 82.9475 deg
SMA: 7350.058 km
Apoapsis: 986.848 km
Periapsis: 956.999 km
RAAN: 200.3576 deg
Eccentricy: 0.0020305
Argument of periapsis: 306.3462 deg
Mean anomaly: 123.5361 deg
Mean motion: 13.7773781 rev/day
Mean motion (dot): 0.00000112 rev/day2
B* drag term: 0.000096501 1/REarth
Two-line elements (TLE)
Creation date: Oct. 22, 2025, 12:06 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 21, 2025, 8:51 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 11379U 79046B 25294.86923808 .00000112 00000-0 96501-4 0 9992
TLE line 2: 2 11379 82.9475 200.3576 0020305 306.3462 123.5361 13.77737810293284
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
Optical film-return reconnaissance satellite
SL-8 R/B was lifted into orbit during the mission ‘Soyuz U | Zenit-6U 7’, on board a Soyuz U space rocket.
The launch took place on May 31, 1979, 4:30 p.m. from 43/3 (43L).
For more information about the launch, click the button.
Soyuz U | Zenit-6U 7
Agency: N/A
Status: Launch Successful
Launch date: May 31, 1979, 4:30 p.m. UTC
Rocket: Soyuz U
Launch pad: 43/3 (43L)
Location: Plesetsk Cosmodrome, Russian Federation
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