The European Space Agency
Mars Express: OMEGA

The OMEGA IR Mineralogical Mapping Spectrometer determines the mineral content of the Martian surface and the molecular composition of the atmosphere by analyzing sunlight reflected from the surface and diffused through the atmosphere. It also performs similar analyses on heat radiation emitted from the surface. Information from Omega will contribute to our understanding of the structure of the Martian landscape and the role played by water over timescales ranging from seasons to billions of years. The OMEGA Principal Investigator is Dr. Jean-Pierre Bibring, Institut d'Astrophysique Spatiale, Orsay, France.

The primary source for OMEGA data is the ESA Planetary Science Archive.

Through a cooperative agreement between ESA and NASA, the PDS Geosciences Node is hosting a copy of the OMEGA data archive.

Copy of OMEGA Data at the PDS Geosciences Node, Washington University in St. Louis

• Nominal Mission (19 Feb 2003 - 19 Jan 2006; cruise through orbit 2595)
• Extended Mission 1 (22 Jan 2006 - 23 Oct 2007; orbits 2607-4890)
• Extended Mission 2 (4 Nov 2007 - 3 Jan 2010; orbits 4931-7697)
• Extended Mission 3 (4 Jan 2010 - 19 Oct 2012; orbits 7701-11193)
• Extended Mission 4 (20 Oct 2012 - 11 Jan 2015)
  
• Extended Mission 5 (14 Jan 2015 - 27 Dec 2015)
• OMEGA Mars Global Maps (updated 11 Mar 2014)

More information about OMEGA is on the OMEGA web site.

Online Tools

	ESA Planetary Science Archive Global Maps of Mars - Provides quick access to all global Mars maps that have been published in the PSA.
	Mars Orbital Data Explorer - Provides search, display, and download  tools for this data set.

December 1, 2016. New data for Extended Mission 5 through 27 December 2015 have been posted.

November 8, 2016. New data for Extended Mission 5 through 1 October 2015 have been posted.

September 26, 2016. New data for Extended Mission 5 through 7 April 2015 have been posted.

March 16, 2016. New data for Extended Mission 4 through 11 January 2015 have been posted.

February 16, 2016. New data for Extended Mission 4 through 15 Sept 2014 have been posted.

February 10, 2016. New data for Extended Mission 4 through 23 May 2014 have been posted.

September 11, 2015. New data for Extended Mission 4 through 27 January 2014 have been posted.

October 15, 2014. Data for Extended Mission 4 through 28 December 2013 (orbit 12695) have been posted.

March 11, 2014. Some of the minerals maps in the OMEGA Mars Global Maps data set have been updated. The hydrated mineral map shows individual sites where hydrated minerals, formed only in the presence of water, were detected by the OMEGA and the MRO CRISM instruments. 

October 31, 2013. Data for Extended Mission 3 through 19 October 2012 (orbit 11193) have been posted.

September 11, 2013. The OMEGA Mars Global Map data set has been released. These are high-level map products derived from raw OMEGA data. 

August 31, 2012. New OMEGA data for Extended Mission 3 are posted.

January 25, 2011. This site now has OMEGA data acquired from 19 February 2003 through 3 January 2010 (cruise phase through orbit 7697). Data from the Extended Mission 1 and Extended Mission 2 are archived as separate data sets.