Key statistics
Satellite SL-8 R/B at a glance.
Uptime
5990
Days in orbit
Revolutions
≈ 13.9
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: 2009-039C
Object number (NORAD): 35637
Object ID (CCSDS): 35637
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 103.47 minutes
Inclination: 82.9546 deg
SMA: 7300.79 km
Apoapsis: 934.372 km
Periapsis: 910.939 km
RAAN: 154.7609 deg
Eccentricy: 0.00160487
Argument of periapsis: 8.6543 deg
Mean anomaly: 57.9502 deg
Mean motion: 13.91707404 rev/day
Mean motion (dot): 0.00000159 rev/day2
B* drag term: 0.00011255573 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 12:35 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 35637U 09039C 25347.52465075 .00000159 00000-0 11256-3 0 9993
TLE line 2: 2 35637 82.9546 154.7609 0016049 8.6543 57.9502 13.91707404630674
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 98’, on board a Kosmos-3M space rocket.
The launch took place on July 21, 2009, 3:57 a.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Parus 98
Agency: N/A
Status: Launch Successful
Launch date: July 21, 2009, 3:57 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
...
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