OMEGA is the spectro-imaging instrument of the ESA Mars-Express mission, inserted into Martian orbit the 25th of December 2003. The instrument has observed most of the Martian surface from a polar orbit, over several Martian years. As of 2023, OMEGA still operates on a daily basis, acquiring VIS-NIR (0.35-1.1 µm) reflectance spectra of the surface and atmosphere of Mars, and occasional Phobos during low altitude flybys. Infrared observations (2.5-5.2 µm) of the surface and atmosphere remain possible with OMEGA, they are acquired on-demand for high priority science targets.
|OMEGA has a new dedicated website with up-to-date information including current projects, detailed instrument description, access to both raw and high level data products: https://www.ias.u-psud.fr/omega/