NOMAD proto-flight model
NOMAD (Nadir and Occultation for MArs Discovery) is one of four science instruments on the ExoMars Trace Gas Orbiter (TGO), launched on 14 March 2016.
The proto-flight model of the NOMAD instrument is seen here during installation on the TGO, in June 2015. The pink covers protecting the instrument's optical entrance windows were removed before launch. This proto-flight model instrument underwent a wide range of tests to ensure that it will survive the journey to Mars and work as expected once there.