Key statistics
Satellite SL-8 R/B at a glance.
Uptime
18394
Days in orbit
Revolutions
≈ 12.2
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: 1975-016J
Object number (NORAD): 7686
Object ID (CCSDS): 7686
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 117.924 minutes
Inclination: 73.998 deg
SMA: 7965.78 km
Apoapsis: 1718.166 km
Periapsis: 1457.125 km
RAAN: 239.0956 deg
Eccentricy: 0.0163852
Argument of periapsis: 52.6705 deg
Mean anomaly: 99.776 deg
Mean motion: 12.21125403 rev/day
Mean motion (dot): -0.0000007 rev/day2
B* drag term: -0.00051094 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 5:26 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 8, 2025, 1:56 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 07686U 75016J 25189.58096421 -.00000070 00000-0 -51094-3 0 9997
TLE line 2: 2 07686 73.9980 239.0956 0163852 52.6705 99.7760 12.21125403244299
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
Military communications satellites
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Strela-1M 81-88’, on board a Kosmos-3M space rocket.
The launch took place on Feb. 28, 1975, 2:01 p.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Strela-1M 81-88
Agency: N/A
Status: Launch Successful
Launch date: Feb. 28, 1975, 2:01 p.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
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