Key statistics
Satellite SL-8 R/B at a glance.
Uptime
14160
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
LEO
Low Earth Orbit
Inclination
74.1
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: 1987-006B
Object number (NORAD): 17304
Object ID (CCSDS): 17304
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.067 minutes
Inclination: 74.0576 deg
SMA: 7139.815 km
Apoapsis: 782.027 km
Periapsis: 741.332 km
RAAN: 232.5938 deg
Eccentricy: 0.00284993
Argument of periapsis: 24.1069 deg
Mean anomaly: 336.1412 deg
Mean motion: 14.39038347 rev/day
Mean motion (dot): 0.00000462 rev/day2
B* drag term: 0.00015722647 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, 11:16 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 17304U 87006B 25300.97009850 .00000462 00000-0 15723-3 0 9997
TLE line 2: 2 17304 74.0576 232.5938 0028499 24.1069 336.1412 14.39038347 32155
Live tracking on map
Real-time ground track for satellite 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 41’, on board a Kosmos-3M space rocket.
The launch took place on Jan. 21, 1987, 9:10 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-2M 41
Agency: N/A
Status: Launch Successful
Launch date: Jan. 21, 1987, 9:10 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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