Garching, Germany. In the LSS cleanroom the model for the antenna of ESA’s and the European Union’s CIMR mission has been unfolded. This Large Deployable Reflector Structure has been designed by a consortium led by HPS and LSS and it is the first antenna of its kind and size making Europe non-dependent in the field of deployable reflectors. It is also a major milestone in the development of the CIMR mission. The Copernicus Imaging Radiometer Mission is one of the Copernicus expansion missions. CIMR will carry a wide-swath conically scanning multi-frequency microwave radiometer to provide observations of sea-surface temperature, sea-ice concentration and sea-surface salinity. Uniquely, it will also observe a wide range of other sea-ice parameters.