Satellites

Sentinel-1 is a two satellite, polar-orbiting RADAR constellation The radar collects data from Earth in all weather conditions, even through clouds. This data is suitable for monitoring the stability of infrastructures, among others. Sentinel-1 achieves a resolution of 5 by 20 m, comparable to the surface area of a commercial warehouse.

The Sentinel-2 mission consists of 2 polar-orbiting satellites that return over the same location every 5 days. There they image the Earth under constant sun elevation. They generate multispectral images covering a 290-km wide strip (e.g., from Calais to Verviers) and with a resolution up to 10 m – allowing viewers to distinguish single-family homes.
The satellites provide an unprecedented view of Earth and changes in vegetation, land and water masses, waterways and coastal areas.

Sentinel-3 delivers highly accurate and reliable optical, thermal and altitude data for marine and land use. The Sentinel-3A and -3B satellites measure the topography of the sea surface, the temperature at sea and on land, and the colour of land and ocean.
Sentinel-3 images achieve a resolution up to 300 m.

Sentinel-5 Precursor is designed to daily observe and monitor various atmospheric components and air quality. With an unprecedented resolution of 3.5 × 5.5 km2, the satellite and its on-board Tropospheric Ozone Monitoring Instrument (TROPOMI) can detect air pollution and its sources at sub-urban scale.

PROBA-V is a miniature satellite measuring less than a cubic metre. Every two days, PROBA-V maps the entire land cover and vegetation growth across the entire globe. Data from the satellite helps to assess climate change and monitor agriculture and food safety, among others.