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Sentinel-3B

From Wikipedia, the free encyclopedia
ESA Earth observation satellite
Sentinel-3B
Vector drawing of the Sentinel-3
Mission typeEarth observation
OperatorESA · EUMETSAT
COSPAR ID2018-039AEdit this at Wikidata
SATCATno.43437
WebsiteSentinel-3 (ESA)
Mission durationPlanned: 7 years
Elapsed: 7 years, 6 months, 28 days
Spacecraft properties
Spacecraft typeSentinel-3
BusPrima
ManufacturerThales Alenia Space[1]
Launch mass1,250 kg (2,756 lb)[2]
Dry mass1,150 kg (2,535 lb)[3]
Dimensions3.9 × 2.2 × 2.2 m (12.8 × 7.2 × 7.2 ft)[2]
Power2,300 watts[3]
Start of mission
Launch date25 April 2018, 17:57:51 (2018-04-25UTC17:57:51) UTC[1]
RocketRokot/Briz-KM
Launch sitePlesetsk Cosmodrome,Site 133
ContractorEurockot Launch Services
Orbital parameters
Reference systemGeocentric
RegimeSun-synchronous
Semi-major axis7,180.77 km (4,461.92 mi)
Eccentricity0.0001027
Perigee altitude801.90 km (498.28 mi)
Apogee altitude803.38 km (499.20 mi)
Inclination98.6276°
Period100.93 min
RAAN183.84°
Argument of perigee96.39°
Mean motion14.26 rev/day
Repeat interval27 days[4]
Epoch25 April 2018, 20:50:15 UTC[5]
Transponders
BandS band (TT&C support)
X band (science data)
BandwidthS band: 64 kbit/s uplink, 1 Mbit/s downlink
X band: 2 × 280 Mbit/s
Instruments
OLCIOcean and Land Colour Instrument
SLSTRSea and Land Surface Temperature Radiometer
SRALSynthetic Aperture Radar Altimeter
MWRMicrowave Radiometer
DORISDoppler Orbitography and Radiopositioning Integrated by Satellite
LRRLaser Retro-Reflector
GNSSGlobal Navigation Satellite System

Sentinel-3B is a EuropeanEarth observation satellite dedicated tooceanography which launched on 25 April 2018.[1] It was built as a part of theCopernicus Programme, and is the second (afterSentinel-3A, launched 16 February 2016) of four plannedSentinel-3 satellites.

Launch

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Sentinel-3B was successfully launched on 25 April 2018 at 17:57 UTC from thePlesetsk Cosmodrome aboard aRokot launch vehicle.[1]

See also

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References

[edit]
  1. ^abcdClark, Stephen (25 April 2018)."European environmental observer launched by Russian rocket".Spaceflight Now. Retrieved25 April 2018.
  2. ^ab"Copernicus: Sentinel-3".eoPortal. European Space Agency. Retrieved25 April 2018.
  3. ^ab"Satellite: Sentinel-3B".World Meteorological Organization. Retrieved25 April 2018.
  4. ^"Sentinel-3 › Mission Summary". European Space Agency. Retrieved30 January 2016.
  5. ^"Sentinel 3B - Orbit".Heavens Above. 25 April 2018. Retrieved25 April 2018.

External links

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