Key statistics
Satellite SL-8 R/B at a glance.
Uptime
14226
Days in orbit
Revolutions
≈ 12.2
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: 1986-092J
Object number (NORAD): 17146
Object ID (CCSDS): 17146
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 117.679 minutes
Inclination: 74.0126 deg
SMA: 7954.755 km
Apoapsis: 1674.916 km
Periapsis: 1478.323 km
RAAN: 88.7255 deg
Eccentricy: 0.0123569
Argument of periapsis: 97.2605 deg
Mean anomaly: 319.5411 deg
Mean motion: 12.23665145 rev/day
Mean motion (dot): 0.0000009 rev/day2
B* drag term: 0.00093427857 1/REarth
Two-line elements (TLE)
Creation date: Nov. 1, 2025, 7:40 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Nov. 1, 2025, 10:33 a.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 17146U 86092J 25305.43979308 .00000090 00000-0 93428-3 0 9990
TLE line 2: 2 17146 74.0126 88.7255 0123569 97.2605 319.5411 12.23665145739852
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Military communications satellites
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 313-320’, on board a Kosmos-3M space rocket.
The launch took place on Nov. 21, 1986, 2 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 313-320
Agency: N/A
Status: Launch Successful
Launch date: Nov. 21, 1986, 2 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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