The German Aerospace Centre (DLR) is Germany‘s national research centre for aeronautics, space, energy, transport, defence and security. The Earth Observation Centre (EOC) of DLR with the German Remote Sensing Data Centre (DFD) and the Remote Sensing Technology Institute (IMF) supports science and industry as well as the general public. With its national and international receiving stations, DFD offers direct access to data from national, European and international EO missions, derives information products from the raw data, disseminates these products to users, and safeguards all data in the National Remote Sensing Data Library for long term use. Its geoscience research related to the atmosphere, global change and civil security facilitates access to products and approaches based on remote sensing and consolidates their utilization in scientific and commercial domains. As one of the European Copernicus Processing and Archiving Centres (PACs) for the Sentinel-missions, involved in several Copernicus core services and being the key German institution to build and operate the Copernicus collaborative ground segment, the EOC has extensive knowledge and links to data, science and infrastructure in Copernicus. Mr. Gunter Schreier is the PI of DLR for the EXCELSIOR project.