Key statistics
Satellite SL-8 R/B at a glance.
Uptime
14824
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: 82.9168 deg
SMA: 7354.518 km
Apoapsis: 1002.218 km
Periapsis: 950.548 km
RAAN: 227.4626 deg
Eccentricy: 0.00351276
Argument of periapsis: 304.9268 deg
Mean anomaly: 111.1301 deg
Mean motion: 13.76484822 rev/day
Mean motion (dot): 0.00000231 rev/day2
B* drag term: 0.00021983211 1/REarth
Two-line elements (TLE)
Creation date: Sept. 3, 2025, 2:21 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 2, 2025, 10:33 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 15506U 85011B 25245.93989743 .00000231 00000-0 21983-3 0 9994
TLE line 2: 2 15506 82.9168 227.4626 0035128 304.9268 111.1301 13.76484822 37758
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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