Key statistics
Satellite SL-8 R/B at a glance.
Uptime
12572
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: 1991-007B
Object number (NORAD): 21090
Object ID (CCSDS): 21090
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.603 minutes
Inclination: 82.9194 deg
SMA: 7354.0 km
Apoapsis: 992.098 km
Periapsis: 959.632 km
RAAN: 207.7909 deg
Eccentricy: 0.0022074
Argument of periapsis: 92.5227 deg
Mean anomaly: 267.8457 deg
Mean motion: 13.7663034 rev/day
Mean motion (dot): 0.00000009 rev/day2
B* drag term: -0.0000062396 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 6:05 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 1:53 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 21090U 91007B 25187.57868292 .00000009 00000-0 -62396-5 0 9990
TLE line 2: 2 21090 82.9194 207.7909 0022074 92.5227 267.8457 13.76630340728350
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Civilian navigation satellite equivalent to the purely military Parus
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Tsikada 17’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 5, 1991, 2:36 a.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Tsikada 17
Agency: N/A
Status: Launch Successful
Launch date: Feb. 5, 1991, 2:36 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
