Technical Specifications
| Provider | European Space Agency |
| Satellites | 2 |
| Resolution | 5 - 20m GSD |
| Accuracy | 1 - 3m at nadir |
| Bands | C-band |
| Stereo available | No |
| Coverage | 500,000 km² per day |
| Altitude | 693 km |
About
Sentinel-1A and Sentinel-1B are a pair of advanced radar imaging satellites launched by the European Space Agency (ESA) in 2014 and 2016, respectively. These two satellites provide all-weather imaging of land and ocean conditions, enabling a range of applications such as maritime surveillance, disaster response, and land deformation monitoring. With their global coverage and high-frequency imaging capabilities, Sentinel-1A and Sentinel-1B are valuable assets for a wide range of industries and applications.
All-weather imaging
Capture high-quality radar imagery for monitoring and disaster response regardless of weather or cloud cover.
High-frequency imaging
12-day repeat cycle enables high-frequency imaging for monitoring land, ice, and water changes.
Ground deformation monitoring
InSAR capability measures ground deformation, aiding geological hazard monitoring (earthquakes, landslides).
Features and Benefits
- Sentinel-1A and Sentinel-1B are equipped with synthetic aperture radar (SAR), which allows for all-weather imaging regardless of cloud cover, making it an ideal tool for monitoring coastal areas and maritime surveillance.
- With a 12-day repeat cycle, Sentinel-1A and Sentinel-1B provide high-frequency imaging of the same area, allowing for monitoring of changes in land cover and water quality.
- The interferometric SAR (InSAR) capability of Sentinel-1A and Sentinel-1B allows for the measurement of ground deformation, making it an essential tool for monitoring geological hazards, such as earthquakes and landslides.
- Sentinel-1A and Sentinel-1B provide global coverage, making them ideal tools for monitoring changes in land cover, ice extent, and water quality around the world.