
Artistic rendition of the EDRS-C satellite,
courtesy of Astrium EADS.
The EDRS-C satellite, which is now being developed and built by OHB System, forms part of a constellation of geostationary satellites which will be receiving data from low-flying satellites and transmitting it to the Earth. The geostationary position of the relay satellites over Europe offers great advantages for numerous communications and earth observation applications such as greater data transmission rates, longer and swifter contact times and enhanced data security.
EDRS-C is currently being assembled on the basis of the SmallGEO platform currently under development at OHB System under ESA’s ARTES 11 program. The planned payload comprises an optical laser communications terminal (LCT) for the intersatellite links and a Ka-band module for transmitting the data received to the ground. To be supplied by Tesat Spacecom GmbH from Backnang near Stuttgart, the payload transmits 1,800 Mpbs per data at the speed of light across a distance of up to 45,000 kilometers. The satellite is to go into operation in 2016.


