Mercury Planetary Orbiter on its way to the 'Rosetta' cleanroom
The Structural and Thermal Model (STM) of the Mercury Planetary Orbiter (MPO) mounted on its multi-purpose trolley via the Thermal Test Adapter (TTA) on 15 October 2011, after the completion of thermal balance testing. The MPO is being moved back to the 'Rosetta' cleanroom.
Last Update: 1 September 2019