Key statistics
Satellite SL-8 R/B at a glance.
Uptime
17639
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: 1977-039B
Object number (NORAD): 10020
Object ID (CCSDS): 10020
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 104.472 minutes
Inclination: 82.9424 deg
SMA: 7347.853 km
Apoapsis: 992.911 km
Periapsis: 946.525 km
RAAN: 286.7987 deg
Eccentricy: 0.00315646
Argument of periapsis: 161.4003 deg
Mean anomaly: 198.8317 deg
Mean motion: 13.78358083 rev/day
Mean motion (dot): 0.00000155 rev/day2
B* drag term: 0.00013746594 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 3:16 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 7, 2025, 7:08 p.m. UTC
TLE line 0: 0 SL-8 R/B
TLE line 1: 1 10020U 77039B 25250.79738734 .00000155 00000-0 13747-3 0 9997
TLE line 2: 2 10020 82.9424 286.7987 0031565 161.4003 198.8317 13.78358083427440
Live tracking on map
Real-time ground track for satellite SL-8 R/B.
Associated space launch
The Sfera or Geoid series were the first soviet geodetic satellites to improve the accuracy of maps. The development of the satellites started in 1965 at NPO-PM.
SL-8 R/B was lifted into orbit during the mission ‘Kosmos-3M | Sfera 16’, on board a Kosmos-3M space rocket.
The launch took place on May 25, 1977, 11 a.m. from 132/2.
For more information about the launch, click the button.
Kosmos-3M | Sfera 16
Agency: N/A
Status: Launch Successful
Launch date: May 25, 1977, 11 a.m. UTC
Rocket: Kosmos-3M
Launch pad: 132/2
Location: Plesetsk Cosmodrome, Russian Federation
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
