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Ardvas Mousessian

The Tropospheric Emission Spectrometer (TES) is one of four instruments on-board NASA's AURA spacecraft, that is scheduled to be launched in the summer of 2004.


TES will make the first direct global measurements of the ozone and other gases important to tropospheric chemistry. TES completes a global survey every 16 days to provide atmospheric measurements over virtually every point on the Earth, in a repeatable pattern. This permits assessment of atmospheric phenomena and changes in the same geographic locations throughout the life of the mission.


This web site contains information pertaining to the technical aspects of the TES instrument data system.


For more information about the AURA spacecraft its mission and its Instruments,



For more information about TES, follow the TES instrument links. Some information on this site provides internal status information, and is password-protected.


More detailed TES mission information is available at