The concept for control of the Venus Express mission is based on the use of a single control centre, the Venus Express Mission Operations Centre (VMOC) at ESOC, Germany, in conjunction with the ESA deep space ground station located in Cebreros (near Madrid, Spain). In normal operations, data are transmitted to Earth during a single eight-hour pass each day.
Venus Express Ground Segment Overview
Venus Express Mission Operations Centre
For the complete mission duration (from launch to the end of mission, when ground contact to the spacecraft/payload is terminated), ESOC provides facilities and services to the scientific community for planning and execution of scientific data acquisition. This includes generating and providing complete raw-data sets and necessary auxiliary data to the Principal Investigators (PIs).