Key statistics
Satellite SL-8 R/B at a glance.
Uptime
16926
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.0
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: 1979-060B
Object number (NORAD): 11427
Object ID (CCSDS): 11427
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.088 minutes
Inclination: 74.0147 deg
SMA: 7140.812 km
Apoapsis: 777.391 km
Periapsis: 747.962 km
RAAN: 153.745 deg
Eccentricy: 0.0020606
Argument of periapsis: 280.8924 deg
Mean anomaly: 78.9911 deg
Mean motion: 14.38736894 rev/day
Mean motion (dot): 0.0000035 rev/day2
B* drag term: 0.00012255856 1/REarth
Two-line elements (TLE)
Creation date: Oct. 30, 2025, 3:32 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 29, 2025, 9:39 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 11427U 79060B 25302.90259507 .00000350 00000-0 12256-3 0 9993
TLE line 2: 2 11427 74.0147 153.7450 0020606 280.8924 78.9911 14.38736894426912
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 20’, on board a Kosmos-3M space rocket.
The launch took place on June 28, 1979, 8:09 p.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 20
Agency: N/A
Status: Launch Successful
Launch date: June 28, 1979, 8:09 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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