CLEMENTINE LWIR BRIGHTNESS TEMPERATURE V1.0

The LWIR camera acquired approximately 220,000 thermal-infrared images of the lunar surface that were used to generate the brightness temperature images within this archive. The procedure for generating brightness temperature values can be summarized as follows: 1) original LWIR digital numbers were converted to radiance; 2) the dark current signal was subtracted from the radiance values; 3) a flat field correction was applied; 4) bad pixels were identified and smoothed over; and 5) calibrated radiance values were converted to brightness temperatures using the Planck function.