http://portal.nersc.gov/archive/home/projects/cxidb/www/80/agipd-calib-v3/kuhnm/pcdrs/r0488-r0489-r0490-r0491-r0492-r0493-r0494-r0495/pcdrs_joined_constants_agipd.h5
http://portal.nersc.gov/archive/home/projects/cxidb/www/80/agipd-calib-v3/kuhnm/pcdrs/r0488-r0489-r0490-r0491-r0492-r0493-r0494-r0495/pcdrs_joined_constants_xfel.h5