Aura (formerly EOS/Chem-1) is the chemistry mission of NASA with the overall objective to study the chemistry and dynamics of Earth's atmosphere from the ground through the mesosphere.

The OMI instrument is a nadir-viewing UV/VIS imaging spectrograph which measures the solar radiation backscattered by the Earth's atmosphere and surface over the entire wavelength range from 270 to 500 nm, with a spectral resolution of about 0.5 nm. The design is of GOME heritage, flown on ERS-2, as well as of SCIAMACHY and GOMOS heritage, flown on Envisat.

The overall objective is to monitor ozone and other trace gases and to monitor tropospheric pollutants worldwide. The OMI instrument is a contribution of the Netherlands Agency for Aerospace Programmes (NIVR) in collaboration with the Finnish Meteorological Institute (FMI) to the EOS Aura mission.

Latest Mission News:

• 15 Jul 2014 - Aura celebrates 10 years of operations - An Aura of Success
• 12 Jan 2013 - The Ozone Hole - Over 30 Years of NASA observations
• 02 Oct 2011 - Study of Unprecedented Arctic Ozone Loss

For more infomation and news visit the Aura home page.

Mission Data:

For information on how to Access Aura data visit the Aura website Science and Data page or alternatively visit the OMI DATA PRODUCTS and DATA ACCESS page at NASA.