Key statistics
Satellite SL-8 R/B at a glance.
Uptime
14869
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: 1985-011B
Object number (NORAD): 15506
Object ID (CCSDS): 15506
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.614 minutes
Inclination: 82.9225 deg
SMA: 7354.483 km
Apoapsis: 1002.954 km
Periapsis: 949.743 km
RAAN: 193.9998 deg
Eccentricy: 0.00361762
Argument of periapsis: 175.6706 deg
Mean anomaly: 254.0214 deg
Mean motion: 13.76494559 rev/day
Mean motion (dot): 0.00000082 rev/day2
B* drag term: 0.000067877858 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 8:45 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 15506U 85011B 25290.86479716 .00000082 00000-0 67878-4 0 9998
TLE line 2: 2 15506 82.9225 193.9998 0036176 175.6706 254.0214 13.76494559 43930
Live tracking on map
Real-time ground track for satellite 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 48’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 1, 1985, 7:36 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Parus 48
Agency: N/A
Status: Launch Successful
Launch date: Feb. 1, 1985, 7:36 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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