Sentinel-2A
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Model of a Sentinel 2 satellite
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| Mission type | Earth observation |
|---|---|
| Operator | ESA |
| COSPAR ID | 2015-028A |
| SATCAT no. | 40697 |
| Website | Sentinel-2 (ESA) |
| Mission duration | Planned: 7 years Elapsed: 1 year, 8 months, 19 days |
| 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 |
| 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 | 788.06 km (489.68 mi) |
| Apogee | 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) 520Mbit/s down (X band/Optical) |
| Instruments | |
| Multi-Spectral Imager (MSI) | |
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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. It will perform terrestrial observations in support of services such as forest monitoring, land cover changes detection, and natural disaster management.
Sentinel 2A was launched by a Vega rocket on 23 June 2015 at 01:52 UTC. The satellite separated from the upper stage 54 min 43 s after liftoff.
The satellite captured its first image 100 hours after launch, making a 290 km wide swath from Sweden through Central Europe to Algeria. Commissioning occurred in October 2015.
Between 20 and 23 January 2017 the spacecraft suffered a mission planning anomaly which resulted in loss of data from the Multi-Spectral Imager.
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