A joint NASA and French Centre National d’Études Spatiales (CNES) mission carried on a 587-kg spacecraft that was launched on 7 December 2001 into a circular orbit at a height of 625 km, inclined 74° to the equator. It began transmitting data on 22 January 2002 and was still functioning in November 2018. TIMED carries four instruments: the global ultraviolet imager (GUVI), solar extreme ultraviolet experiment (SEE), TIMED Doppler interferometer (TIDI), and sounding of the atmosphere using broadband emission radiometry (SABER). These measure the atmospheric temperatures and energy flows 60–180 km above the surface in the mesosphere and lower thermosphere.

http://www.timed.jhuapl.edu/WWW/index.php A joint CNES and NASA mission to study the influence of the Sun and humans on the mesosphere, ionosphere, and lower thermosphere of Earth’s atmosphere.