After Sentinel-1A, last 3 April 2014, Sentinel 1B will be launched next 22 April on a Soyuz rocket from Europe’s Spaceport in French Guiana.

The Sentinels, a new fleet of ESA satellites, are poised to deliver the wealth of data and imagery that are central to Europe’s Copernicus programme.By offering a set of key information services for a broad range of applications, this global monitoring programme makes a step change in the way we manage our environment, understand and tackle the effects of climate change, and safeguard everyday lives.

The first in the series, Sentinel-1 carries an advanced radar instrument to provide an all-weather, day and night supply of imagery of Earth’s surface.

Sentinel-1 is the result of close collaboration between the ESA, the European Commission, industry, service providers and data users. Designed and built by a consortium of around 60 companies les by Thales Alenia Space and Airbus Defence and Space, it is an outstanding example of Europe’s technological excellence.

More about Sentinel-1:
http://www.esa.int/Sentinel-1