Key statistics
Satellite SL-8 R/B at a glance.
Uptime
17133
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: 1979-003B
Object number (NORAD): 11239
Object ID (CCSDS): 11239
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.643 minutes
Inclination: 82.9378 deg
SMA: 7355.885 km
Apoapsis: 1008.005 km
Periapsis: 947.495 km
RAAN: 307.1777 deg
Eccentricy: 0.00411299
Argument of periapsis: 14.489 deg
Mean anomaly: 96.6419 deg
Mean motion: 13.7610114 rev/day
Mean motion (dot): 0.00000076 rev/day2
B* drag term: 0.000061760332 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 6:20 a.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 11239U 79003B 25346.26413304 .00000076 00000-0 61760-4 0 9995
TLE line 2: 2 11239 82.9378 307.1777 0041130 14.4890 96.6419 13.76101140353901
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
Navigation satellite providing location information for the Tsiklon-B navigation system
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Parus 17’, on board a Kosmos-3M space rocket.
The launch took place on Jan. 16, 1979, 5:37 p.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Parus 17
Agency: N/A
Status: Launch Successful
Launch date: Jan. 16, 1979, 5:37 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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