Key statistics
Satellite SL-3 R/B at a glance.
Uptime
17472
Days in orbit
Revolutions
≈ 14.1
Per day
Orbit
LEO
Low Earth Orbit
Inclination
81.2
Latest
Satellite identification and parameters
Extended collection of information and parameters for SL-3 R/B.
Object identification
Identified? True
Debris? False
Object name: SL-3 R/B
International designator: 1977-117B
Object number (NORAD): 10515
Object ID (CCSDS): 10515
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.195 minutes
Inclination: 81.2469 deg
SMA: 7240.689 km
Apoapsis: 884.29 km
Periapsis: 840.817 km
RAAN: 204.1401 deg
Eccentricy: 0.00300202
Argument of periapsis: 306.5125 deg
Mean anomaly: 53.328 deg
Mean motion: 14.09071215 rev/day
Mean motion (dot): 0.00000241 rev/day2
B* drag term: 0.00013154031 1/REarth
Two-line elements (TLE)
Creation date: Oct. 15, 2025, 2:21 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 14, 2025, 12:43 p.m. UTC
TLE line 0: 0 SL-3 R/B
TLE line 1: 1 10515U 77117B 25287.53027170 .00000241 00000-0 13154-3 0 9998
TLE line 2: 2 10515 81.2469 204.1401 0030020 306.5125 53.3280 14.09071215457763
Live tracking on map
Real-time ground track for satellite SL-3 R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object SL-3 R/B.
Associated space launch
Second generation soviet meteorological satellite
SL-3 R/B was lifted into orbit during the mission ‘Vostok 8A92M | Meteor-2 3’, on board a Vostok 8A92M space rocket.
The launch took place on Dec. 14, 1977, 9:30 a.m. from 43/4 (43R).
For more information about the launch, click the button.
Vostok 8A92M | Meteor-2 3
Agency: N/A
Status: Launch Successful
Launch date: Dec. 14, 1977, 9:30 a.m. UTC
Rocket: Vostok 8A92M
Launch pad: 43/4 (43R)
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.
