Thermal out-of-band leakage into the SWIR Bands (5, 6,7,and 26) was evaluated by viewing the Earth at night with the MODIS instrument in day mode. Band 28 was selected to determine the leak coefficients. These coefficients were applied to mitigate the effect. The coefficients have been applied to the calculation of m1 after 12/16/2002, LUT version 188.8.131.52. Energy near 5.3 µm contributes to the SWIR bands (Bands 5, 6, 7 and 26). In June 2003, Band 25 was selected to determine the leak coefficients.