also European Space Operations Centre (ESOC) European Space Research and Technology Centre (ESTEC) European Space Astronomy Centre (ESAC) European Astronaut Centre (EAC) European Centre for Space Applications and Telecommunications (ECSAT) ESA Centre for Earth Observation (ESRIN) Guiana Space Centre (CSG) European Space Agency (ESA) References External links ESA Operations website ESA webpage on ESTRACK, including links to all stations Deep Space Network Ground stations European Space Agency