Key statistics
Satellite SL-3 R/B at a glance.
Uptime
18520
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: 1975-023B
Object number (NORAD): 7715
Object ID (CCSDS): 7715
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.333 minutes
Inclination: 81.2202 deg
SMA: 7247.193 km
Apoapsis: 907.202 km
Periapsis: 830.915 km
RAAN: 100.7075 deg
Eccentricy: 0.00526323
Argument of periapsis: 51.2806 deg
Mean anomaly: 309.3051 deg
Mean motion: 14.07174668 rev/day
Mean motion (dot): 0.00000038 rev/day2
B* drag term: 0.000015044136 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 6:10 a.m. UTC
TLE line 0: 0 SL-3 R/B
TLE line 1: 1 07715U 75023B 25346.25722079 .00000038 00000-0 15044-4 0 9990
TLE line 2: 2 07715 81.2202 100.7075 0052632 51.2806 309.3051 14.07174668601245
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 21 (31L)’, on board a Vostok 8A92M space rocket.
The launch took place on April 1, 1975, 12:30 p.m. from 41/1.
For more information about the launch, click the button.
Vostok 8A92M | Meteor-1 21 (31L)
Agency: N/A
Status: Launch Successful
Launch date: April 1, 1975, 12:30 p.m. UTC
Rocket: Vostok 8A92M
Launch pad: 41/1
Location: Plesetsk Cosmodrome, Russian Federation
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