Under an implementing arrangement, the agencies may use each other’s ground stations for telemetry, tracking and command functions.
Yay for international cooperation!
ESA’s European Space Tracking (Estrack) network has a core of six stations in six countries, including three deep space antennas, while the agreement will open access to the Korea Deep Space Antenna in Yeoju. This cooperation will boost resilience for missions by filling gaps in coverage and providing back-up tracking stations should the main facility not be available because of environmental reasons or congestion.
I didn’t even know there was an antenna in Yeoju. Cool stuff.