Key statistics
Satellite SL-3 R/B at a glance.
Uptime
13681
Days in orbit
Revolutions
≈ 14.0
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.9
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: 1988-021B
Object number (NORAD): 18961
Object ID (CCSDS): 18961
Country: COMMONWEALTH OF INDEPENDENT STATES (CIS)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.806 minutes
Inclination: 98.9149 deg
SMA: 7269.542 km
Apoapsis: 929.941 km
Periapsis: 852.873 km
RAAN: 300.8044 deg
Eccentricy: 0.00530075
Argument of periapsis: 258.3597 deg
Mean anomaly: 237.4633 deg
Mean motion: 14.00690588 rev/day
Mean motion (dot): -0.00000161 rev/day2
B* drag term: -0.000077606055 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 7:18 p.m. UTC
TLE line 0: 0 SL-3 R/B
TLE line 1: 1 18961U 88021B 25242.80451616 -.00000161 00000-0 -77606-4 0 9990
TLE line 2: 2 18961 98.9149 300.8044 0053008 258.3597 237.4633 14.00690588914925
Live tracking on map
Real-time ground track for satellite SL-3 R/B.
Associated space launch
Indian remote sensing satellite
SL-3 R/B was lifted into orbit during the mission ‘Vostok 8A92M | IRS-1A’, on board a Vostok 8A92M space rocket.
The launch took place on March 17, 1988, 6:43 a.m. from 31/6.
For more information about the launch, click the button.
Vostok 8A92M | IRS-1A
Agency: N/A
Status: Launch Successful
Launch date: March 17, 1988, 6:43 a.m. UTC
Rocket: Vostok 8A92M
Launch pad: 31/6
Location: Baikonur Cosmodrome, Republic of Kazakhstan
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