Key statistics
Satellite SL-3 R/B at a glance.
Uptime
18201
Days in orbit
Revolutions
≈ 14.1
Per day
Orbit
LEO
Low Earth Orbit
Inclination
81.3
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: 1975-124B
Object number (NORAD): 8520
Object ID (CCSDS): 8520
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.172 minutes
Inclination: 81.2848 deg
SMA: 7239.584 km
Apoapsis: 884.188 km
Periapsis: 838.709 km
RAAN: 98.2093 deg
Eccentricy: 0.003141
Argument of periapsis: 354.9951 deg
Mean anomaly: 5.0901 deg
Mean motion: 14.0939378 rev/day
Mean motion (dot): -0.00000043 rev/day2
B* drag term: -0.000031988524 1/REarth
Two-line elements (TLE)
Creation date: Oct. 24, 2025, 2:48 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 23, 2025, 10:42 p.m. UTC
TLE line 0: 0 SL-3 R/B
TLE line 1: 1 08520U 75124B 25296.94601361 -.00000043 00000-0 -31989-4 0 9991
TLE line 2: 2 08520 81.2848 98.2093 0031410 354.9951 5.0901 14.09393780560521
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
The Meteor-1 series was the first series of Soviet meteorological satellites.
SL-3 R/B was lifted into orbit during the mission ‘Vostok 8A92M | Meteor-1 23 (38L)’, on board a Vostok 8A92M space rocket.
The launch took place on Dec. 25, 1975, 7 p.m. from 41/1.
For more information about the launch, click the button.
Vostok 8A92M | Meteor-1 23 (38L)
Agency: N/A
Status: Launch Successful
Launch date: Dec. 25, 1975, 7 p.m. UTC
Rocket: Vostok 8A92M
Launch pad: 41/1
Location: Plesetsk Cosmodrome, Russian Federation
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