The Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite is a NASA Heliophysics mission to study the mesosphere and lower thermosphere from about 60 to 180 km altitude, and understand how solar variability and lower atmosphere processes combine to make this one of the most dynamic and variable regions of the terrestrial atmosphere.
TIMED carries four instruments, a Global Ultraviolet Imager (GUVI), an infrared limb-sounder (SABER), a solar ultraviolet spectrometer (SEE), and a Fabry-Perot interferometer (TIDI). Data are available through the TIMED Mission Data Center and the individual instrument web sites.
