Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16768
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.1
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: 1979-089B
Object number (NORAD): 11574
Object ID (CCSDS): 11574
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 99.849 minutes
Inclination: 74.0674 deg
SMA: 7129.426 km
Apoapsis: 763.156 km
Periapsis: 739.427 km
RAAN: 73.0663 deg
Eccentricy: 0.00166415
Argument of periapsis: 290.8807 deg
Mean anomaly: 69.0567 deg
Mean motion: 14.42184751 rev/day
Mean motion (dot): 0.00000364 rev/day2
B* drag term: 0.00011853516 1/REarth
Two-line elements (TLE)
Creation date: Sept. 6, 2025, 2:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 5, 2025, 9:25 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 11574U 79089B 25248.89279999 .00000364 00000-0 11854-3 0 9999
TLE line 2: 2 11574 74.0674 73.0663 0016641 290.8807 69.0567 14.42184751409468
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
Military communications satellite
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 22’, on board a Kosmos-3M space rocket.
The launch took place on Oct. 11, 1979, 4:36 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 22
Agency: N/A
Status: Launch Successful
Launch date: Oct. 11, 1979, 4:36 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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