- INSAT-3D carries a 19 channel sounder, this is the first such payload to be
flown on an ISRO satellite mission. The Sounder has eighteen narrow spectral channels in shortwave, infrared, middle infrared and long wave infrared regions and one channel in the visible region. It will provide information on the vertical profiles of temperature, humidity and integrated ozone. These profiles are available for a selected region over Indian landmass every one hour and for the entire Indian Ocean Region every six hours.
Instrument_Category: INSAT-3D Sounder
Wavelength_Keyword: INFRARED > THERMAL