Key statistics
Satellite SENTINEL 3B at a glance.
Uptime
2572
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.6
Latest
Satellite identification and parameters
Extended collection of information and parameters for SENTINEL 3B.
Object identification
Identified? True
Debris? False
Object name: SENTINEL 3B
International designator: 2018-039A
Object number (NORAD): 43437
Object ID (CCSDS): 43437
Country: EUROPEAN SPACE AGENCY (ESA)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.93 minutes
Inclination: 98.6314 deg
SMA: 7180.807 km
Apoapsis: 803.63 km
Periapsis: 801.714 km
RAAN: 198.0455 deg
Eccentricy: 0.0001334
Argument of periapsis: 76.8606 deg
Mean anomaly: 283.2723 deg
Mean motion: 14.26733677 rev/day
Mean motion (dot): 0.00000158 rev/day2
B* drag term: 0.000083345 1/REarth
Two-line elements (TLE)
Creation date: May 10, 2025, 2:32 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 9, 2025, 7:15 p.m. UTC
TLE line 0: 0 SENTINEL 3B
TLE line 1: 1 43437U 18039A 25129.80248392 .00000158 00000-0 83345-4 0 9998
TLE line 2: 2 43437 98.6314 198.0455 0001334 76.8606 283.2723 14.26733677366604
Live tracking on map
Real-time ground track for satellite SENTINEL 3B.
In-orbit conjunctions
There are no conjunctions computed for SENTINEL 3B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Sentinel-3B is the second in a constellation of earth observation satellites developed by ESA to provide near real time data for the Global Monitoring for Environment and Security Program. Sentinel-3B contains a temperature scanner, colour instrument and altimeter for monitoring the sea and land. The satellite focuses on providing accurate data about the oceans and in addition also provides information about wildfires and vegetation.
SENTINEL 3B was lifted into orbit during the mission ‘Rokot / Briz-KM | Sentinel-3B’, on board a Rokot/Briz-KM space rocket.
The launch took place on April 25, 2018, 5:57 p.m. from 133/3 (133L).
For more information about the launch, click the button.

Rokot / Briz-KM | Sentinel-3B
Agency: N/A
Status: Launch Successful
Launch date: April 25, 2018, 5:57 p.m. UTC
Rocket: Rokot/Briz-KM
Launch pad: 133/3 (133L)
Location: Plesetsk Cosmodrome, Russian Federation
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Latest news about this satellite
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