Key statistics
Satellite SL-3 R/B at a glance.
Uptime
17370
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: 81.2484 deg
SMA: 7240.705 km
Apoapsis: 885.756 km
Periapsis: 839.383 km
RAAN: 302.9408 deg
Eccentricy: 0.0032022
Argument of periapsis: 223.7348 deg
Mean anomaly: 136.1286 deg
Mean motion: 14.09066566 rev/day
Mean motion (dot): 0.0000006 rev/day2
B* drag term: 0.00002751 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 10:16 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 4, 2025, 8:18 p.m. UTC
TLE line 0: 0 SL-3 R/B
TLE line 1: 1 10515U 77117B 25185.84604026 .00000060 00000-0 27510-4 0 9991
TLE line 2: 2 10515 81.2484 302.9408 0032022 223.7348 136.1286 14.09066566443703
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
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