The Conical Scanning Horizon Sensors on the Indian Remote Sensing satellite IRS-1B which detect the Earth's radiation in the 14 - 16 micrometers Carbon dioxide band have provided radiance data versus latitude and longitude. The present paper describes the method of generating the radiance data and the results obtained for the period January to July 1992.
T. K. Alex,
"Infrared radiation measurements from IRS-1B", Proc. SPIE 1968, Atmospheric Propagation and Remote Sensing II, (15 September 1993); doi: 10.1117/12.154886; https://doi.org/10.1117/12.154886