Soyuz VS14 upper composite in the S3B preparation building

Soyuz VS14 upper composite in the S3B preparation building in preparation for the 22 April 2016 launch.

Once in orbit, it will provide radar images of Earth for Europe’s Copernicus environmental monitoring programme.

With the Sentinel-1 mission designed as a two-satellite constellation, Sentinel-1B will join its identical twin, Sentinel-1A, which was launched two years ago.