Sentinel-1A is a European radar imaging satellite launched in 2014. It is the first Sentinel-1 satellite launched as part of the European Union's Copernicus programme. The satellite carries a C-band Synthetic Aperture Radar which will provide images in all light and weather conditions. It analyzes many phenomena occurring on Earth, from detecting and tracking oil spills and mapping sea ice to monitoring movement in land surfaces and mapping changes in the way land is used.
Model of a Sentinel-1 satellite (radar antenna missing)
Sentinel-1 is the first of the Copernicus Programme satellite constellations conducted by the European Space Agency. 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. Sentinel-1C is currently planned to launch in the final quarter of 2024.
Model of a Sentinel-1 (radar antenna missing)
The first data strip acquired by Sentinel-1B over the Barents Sea. The Svalbard archipelago is visible on the left side.
A composite of Ireland's land cover derived from Sentinel-1A data
Thunderstorms over Estonia. False colour RGB image of VV-, VH- and VV+VH-polarisation backscatter.
