Manufacturer |
| ||
---|---|---|---|
Operator | European Space Agency | ||
Applications | Land and sea monitoring, natural disasters mapping, sea ice observations, ships detection | ||
Specifications | |||
Spacecraft type | Satellite | ||
Constellation | Active: 1 | ||
Launch mass | 2,300 kg (5,100 lb) | ||
Dry mass | 2,170 kg (4,780 lb) | ||
Dimensions | 3.9 m × 2.6 m × 2.5 m (13 ft × 8.5 ft × 8.2 ft) | ||
Power | 5.9 kilowatts (5,900 W)[2] | ||
Batteries | 324 Ah | ||
Design life | 7 years (12 years of consumables) | ||
Production | |||
Status | Active | ||
On order | 4 | ||
Built | 4 | ||
Launched | 2 | ||
Operational | 1 | ||
Retired | 1 | ||
Maiden launch | Sentinel-1A (3 April 2014)[3] | ||
Last launch | Sentinel-1B (25 April 2016) | ||
Related spacecraft | |||
Subsatellite of | Copernicus Programme | ||
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Sentinel-1 is the first of the Copernicus Programme satellite constellations conducted by the European Space Agency.[4] The mission was originally composed of a constellation of two satellites, Sentinel-1A and Sentinel-1B, which shared the same orbital plane. Two more satellites, Sentinel-1C and Sentinel-1D are in development. Sentinel-1B was retired following a power supply issue on December 23, 2021, leaving Sentinel-1A the only satellite of the constellation currently operating.[5] Sentinel-1C is currently planned to launch in the final quarter of 2024.[6]