Read arguments: tmp_image_list.txt and sw03103335001xpcw3po_cl_nobrt_postastrom_band3.img Going to read from tmp_image_list.txt Going to open file sw03103335001xpcw3po_cl_nobrt_postastrom_band3_01.img Going to open file sw03103335001xpcw3po_cl_nobrt_postastrom_band3_02.img Writing to sw03103335001xpcw3po_cl_nobrt_postastrom_band3.img