Key statistics
Satellite SL-8 R/B at a glance.
Uptime
13824
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: 1987-106B
Object number (NORAD): 18710
Object ID (CCSDS): 18710
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.63 minutes
Inclination: 82.9148 deg
SMA: 7355.237 km
Apoapsis: 993.639 km
Periapsis: 960.566 km
RAAN: 209.537 deg
Eccentricy: 0.00224824
Argument of periapsis: 194.1816 deg
Mean anomaly: 176.9104 deg
Mean motion: 13.76282912 rev/day
Mean motion (dot): 0.00000111 rev/day2
B* drag term: 0.00009787877 1/REarth
Two-line elements (TLE)
Creation date: Oct. 28, 2025, 2:18 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 27, 2025, 11:49 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 18710U 87106B 25300.99241429 .00000111 00000-0 97879-4 0 9996
TLE line 2: 2 18710 82.9148 209.5370 0022482 194.1816 176.9104 13.76282912900205
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object 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 61’, on board a Kosmos-3M space rocket.
The launch took place on Dec. 23, 1987, 8:22 p.m. from 133/3 (133L).
For more information about the launch, click the button.
Kosmos-3M | Parus 61
Agency: N/A
Status: Launch Successful
Launch date: Dec. 23, 1987, 8:22 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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