Tropospheric Emission Spectrometer or TES was a satellite instrument designed to measure the state of the earth's troposphere.[1]


TES Mission Logo
TES Mission Logo

TES was a high-resolution infrared Fourier Transform spectrometer and provided key data for studying tropospheric chemistry, troposphere-biosphere interaction, and troposphere-stratosphere exchanges. It was built for NASA by the Jet Propulsion Laboratory, California Institute of Technology in Pasadena, California. It was successfully launched into polar orbit by a Delta II 7920-10L rocket aboard NASA's third Earth Observing Systems spacecraft (EOS-Aura) at 10:02 UTC on July 15, 2004.[1] Originally planned as a 5-year mission, it was decommissioned after almost 14 years on January 31, 2018.[2]


  1. ^ a b "The Aura Mission". Retrieved 2018-05-22.
  2. ^ "Farewell to a Pioneering Pollution Sensor". NASA/JPL. Retrieved 2018-05-23.