[Wed Aug 14 22:24:12 2013] Warning, more than one pbk0 file found in ACISBiasPath directory acisf12872/data/aux/
[Wed Aug 14 22:24:29 2013] Hmmm... no usable CCD exposure maps created
[Wed Aug 14 22:24:29 2013] An exposure map should exist at this point
[Wed Aug 14 22:24:30 2013] No mask image found for ccd9
[Wed Aug 14 22:24:37 2013] xa_detect... no product mask image in memory