Key statistics
Satellite SL-8 R/B at a glance.
Uptime
13970
Days in orbit
Revolutions
≈ 14.4
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: 1987-049B
Object number (NORAD): 18096
Object ID (CCSDS): 18096
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.152 minutes
Inclination: 74.04 deg
SMA: 7143.869 km
Apoapsis: 781.806 km
Periapsis: 749.662 km
RAAN: 106.6378 deg
Eccentricy: 0.00224974
Argument of periapsis: 260.3654 deg
Mean anomaly: 99.4958 deg
Mean motion: 14.378134 rev/day
Mean motion (dot): 0.00000363 rev/day2
B* drag term: 0.00012890504 1/REarth
Two-line elements (TLE)
Creation date: Sept. 7, 2025, 3:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 9:15 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 18096U 87049B 25249.88541799 .00000363 00000-0 12891-3 0 9991
TLE line 2: 2 18096 74.0400 106.6378 0022497 260.3654 99.4958 14.37813400 3055
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
Military communications satellite
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-2M 42’, on board a Kosmos-3M space rocket.
The launch took place on June 9, 1987, 2:45 p.m. from 132/1 (132L).
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 42
Agency: N/A
Status: Launch Successful
Launch date: June 9, 1987, 2:45 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/1 (132L)
Location: Plesetsk Cosmodrome, Russian Federation
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