Sentinel-2A

Sentinel-2A
	Model of a Sentinel 2 satellite
Mission type	Earth observation
Operator	ESA
COSPAR ID	2015-028A
SATCAT no.	40697
Website	Sentinel-2 (ESA)
Mission duration	Planned: 7 years ; Elapsed: 8 years, 11 months
Spacecraft properties
Spacecraft type	Sentinel-2
Manufacturer	Airbus Defence and Space
Launch mass	1,140 kg (2,510 lb)
Dry mass	1,017 kg (2,242 lb)
Dimensions	3.4 m × 1.8 m × 2.35 m (11.2 ft × 5.9 ft × 7.7 ft)
Power	1700 watts
Start of mission
Launch date	23 June 2015, 01:51:58 UTC
Rocket	Vega ( VV05 )
Launch site	Kourou SLV
Contractor	Arianespace
Orbital parameters
Reference system	Geocentric
Regime	Low Earth
Semi-major axis	7,167.10 km (4,453.43 mi)
Eccentricity	0.000127
Perigee altitude	788.06 km (489.68 mi)
Apogee altitude	789.87 km (490.80 mi)
Inclination	98.5623°
Period	100.65 minutes
Epoch	9 March 2017, 21:05:23 UTC
Transponders
Band	S band (TT&C support) ; X band and optical laser through EDRS (data acquisition)
Bandwidth	64 kbit/s upload (S band) ; 128 kbit/s - 2 Mbit/s down (S band) ; 520 Mbit/s down (X band/Optical)
Instruments
	Multi-Spectral Imager (MSI)
	Sentinel-2 Sentinel-2B →

Sentinel-2A is a European optical imaging satellite launched in 2015. It is the first Sentinel-2 satellite launched as part of the European Space Agency 's Copernicus Programme . The satellite carries a wide swath high-resolution multispectral imager with 13 spectral bands. Its observations support services such as forest monitoring, land cover change-detection, natural disaster management and water quality monitoring. ^[4]

On 7 March 2017 the Sentinel-2A was joined in orbit by its sister satellite, Sentinel-2B .

Mission history [ edit ]

Launch [ edit ]

Sentinel 2A was launched by the Vega VV05 rocket on 23 June 2015 at 01:52 UTC . The satellite separated from the upper stage 54 min 43 s after liftoff. ^[5]

Orbital operation [ edit ]

The satellite captured its first image 100 hours after launch, covering a 290 km (180 mi) wide swath from Sweden through Central Europe to Algeria. ^[6]^[7]^: 8 Commissioning occurred in October 2015. ^[7]^: 8

Between 20 and 23 January 2017 the spacecraft suffered a mission planning anomaly which resulted in loss of data from its instrument, the Multi-Spectral Imager . ^[8]

References [ edit ]

^ "Sentinel-2: The Operational Compernicus Optical High Resolution Land Mission" (PDF) . European Space Agency . 2013 . Retrieved 23 June 2015 .
^ "Second Copernicus environmental satellite safely in orbit" . European Space Agency. 23 June 2015 . Retrieved 24 June 2015 .
^ "Sentinel 2A - Orbit" . Heavens-Above . 9 March 2017 . Retrieved 9 March 2017 .
^ Justice, Adam (23 June 2015). "Sentinel-2A: Satellite blasts off to provide new, improved view of Earth" . International Business Times . Retrieved 24 June 2015 .
^ Chris Bergin (22 June 2015). "Vega successfully launches Sentinel-2A mission" . nasaspaceflight.com . Retrieved 19 March 2023 .
^ "Sentinel-2 delivers first images" . European Space Agency. 29 June 2015 . Retrieved 1 February 2017 .
^ ^a ^b Hoersch, Bianca (2015). A short success story of Sentinel-2A (PDF) . Meeting of the Earth Observation Programme Board. 22?23 September 2015. ESRIN, Frascati, Italy . Retrieved 1 February 2017 .
^ "Loss of Sentinel-2A acquisitions between 20 and 23 January 2017" . European Space Agency. 23 January 2017 . Retrieved 1 February 2017 .

External links [ edit ]

Sentinel-2 programme at ESA's Sentinel Online
Sentinel-2 programme at ESA.int
Real-time orbital tracking - uphere.space

[esa-factsheet-1] "Sentinel-2: The Operational Compernicus Optical High Resolution Land Mission" (PDF) . European Space Agency . 2013 . Retrieved 23 June 2015 .

[sentinelEarth-2] "Second Copernicus environmental satellite safely in orbit" . European Space Agency. 23 June 2015 . Retrieved 24 June 2015 .

[heavens-above-3] "Sentinel 2A - Orbit" . Heavens-Above . 9 March 2017 . Retrieved 9 March 2017 .

[4] Justice, Adam (23 June 2015). "Sentinel-2A: Satellite blasts off to provide new, improved view of Earth" . International Business Times . Retrieved 24 June 2015 .

[5] Chris Bergin (22 June 2015). "Vega successfully launches Sentinel-2A mission" . nasaspaceflight.com . Retrieved 19 March 2023 .

[6] "Sentinel-2 delivers first images" . European Space Agency. 29 June 2015 . Retrieved 1 February 2017 .

[StockholmPresentation-7] Hoersch, Bianca (2015). A short success story of Sentinel-2A (PDF) . Meeting of the Earth Observation Programme Board. 22?23 September 2015. ESRIN, Frascati, Italy . Retrieved 1 February 2017 .

[8] "Loss of Sentinel-2A acquisitions between 20 and 23 January 2017" . European Space Agency. 23 January 2017 . Retrieved 1 February 2017 .

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v t e ← 2014 Orbital launches in 2015 2016 →
January	SpaceX CRS-5 ( Flock-1d ' × 2, AESP-14 ) MUOS-3 SMAP , ExoCube
February	IGS-Radar Spare Inmarsat 5-F2 Fajr DSCOVR Progress M-26M Kosmos 2503 / Bars-M No. 1
March	ABS-3A , Eutelsat 115 West B WADIS-2 MMS Ekspress AM7 USA-260 / GPS IIF -9 KOMPSat-3A IGS-Optical 5 Soyuz TMA-16M Galileo FOC-3, FOC-4 IRNSS-1D BeiDou I1-S Gonets-M 11, 12, 13, Kosmos 2504
April	SpaceX CRS-6 ( Arkyd-3R , Flock-1e × 14 ) Thor 7 , SICRAL-2 TurkmenAlem 52°E / MonacoSAT Progress M-27M
May	Mexsat-1 USA-261 / X-37 OTV-4 , LightSail-1 , USS Langley , BRICSat-P , ParkinsonSat , GEARRS-2 , AeroCube 8A, 8B, OptiCube 1, 2, 3 DirecTV-15 , SKY Mexico -1
June	Kosmos 2505 / Kobalt-M №10 Sentinel-2A Kosmos 2506 / Persona №3 Gaofen 8 SpaceX CRS-7 † ( Flock-1f × 8† )
July	Progress M-28M UK-DMC 3 × 3, CBNT-1 , DeOrbitSail USA-262 / GPS IIF -10 Star One C4 , MSG-4 Soyuz TMA-17M USA-263 / WGS-7 BeiDou M1-S, M2-S
August	HTV-5 / Kounotori 5 ( Flock-2b × 14 ) Eutelsat 8 West B , Intelsat 34 Yaogan 27 GSAT-6 / INSAT-4E Inmarsat 5-F3
September	Soyuz TMA-18M MUOS-4 Galileo FOC-5 , Galileo FOC-6 TJS-1 Gaofen 9 Ekspress AM8 Kosmos 2507 / Strela-3M 13 , Kosmos 2508 / Strela-3M 14 , Kosmos 2509 / Strela-3M 15 Pujiang-1 Astrosat , LAPAN-A2 , Lemur-2 × 4 BeiDou I2-S NBN-Co 1A , ARSAT-2
October	Progress M-29M Mexsat-2 Jilin-1 Smart Verification Satellite , Jilin-1 Optical-A , Jilin-1 Video-01 , Jilin-1 Video-02 USA-264 / NOSS Intruder × 2, AMSAT Fox-1 APStar-9 Turksat 4B USA-265 / GPS IIF -11
November	Chinasat 2C HiakaSat , EDSN × 8, PrintSat , Argus , STACEM , Supernova-Beta Yaogan 28 Arabsat 6B , GSAT-15 Kosmos 2510 / EKS-1 / Tundra-11L LaoSat-1 Telstar 12V Yaogan 29
December	LISA Pathfinder Kosmos 2511 / Kanopus-ST†, Kosmos 2512 / KYuA-1 Cygnus CRS OA-4 ( Flock-2e × 12 , MinXSS 1 , Nodes × 2 ) ChinaSat 1C Elektro-L No.2 Kosmos 2513 / Garpun-12L Soyuz TMA-19M TeLEOS-1 DAMPE Galileo FOC-8 , Galileo FOC-9 Progress MS-01 Orbcomm-OG2 × 11 Ekspress-AMU1 Gaofen 4
Launches are separated by dots ( ? ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).