Sentinel-1B satellite in the S3B preparation building

Sentinel-1B satellite in the S3B preparation building of the Guiana Space, on Thursday 14 April. The Sentinel-1B satellite is being prepared for liftoff on 22 April 2016.

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.