Key statistics
Satellite SL-8 R/B at a glance.
Uptime
13941
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: 1987-087B
Object number (NORAD): 18403
Object ID (CCSDS): 18403
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.588 minutes
Inclination: 82.9181 deg
SMA: 7353.301 km
Apoapsis: 1017.867 km
Periapsis: 932.465 km
RAAN: 300.9674 deg
Eccentricy: 0.0058071
Argument of periapsis: 150.583 deg
Mean anomaly: 209.8617 deg
Mean motion: 13.76826586 rev/day
Mean motion (dot): 0.00000158 rev/day2
B* drag term: 0.00014271479 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, 8:27 a.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 18403U 87087B 25347.35266510 .00000158 00000-0 14271-3 0 9997
TLE line 2: 2 18403 82.9181 300.9674 0058071 150.5830 209.8617 13.76826586916718
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 60’, on board a Kosmos-3M space rocket.
The launch took place on Oct. 14, 1987, 12:35 p.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Parus 60
Agency: N/A
Status: Launch Successful
Launch date: Oct. 14, 1987, 12:35 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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