The IAS, working with LESIA, provided an optical microscope (MicrOmega VIS).
Delaying the launch from 2009 to 2011 gave enough time to add a new instrument to the probe: the infrared spectral microscope (MicrOmega IR).
Using microscopic spectral imaging, MicrOmega IR would have given the first on-site analysis of the mineral and molecular composition of a seemingly indistinguishable body, at the scale of individual grains. This description is crucial to determining Phobos’s origin and could be used as a reference for other sample analysis
Moreover, Phobos-Grunt’s MicrOmega IR is a precursor for the ExoMars mission’s future infrared microscope spectrometer.
In early 2011, the IAS delivered the MicrOmega IR microscope they had developed with LESIA and IKI.