called by processQC from $DFS_PRODUCT/ZPL_IFLAT_POL/$DATE as c_ZPL_IFLAT_POL -a $AB -u sphere -level 1 2\>\&1 \> $DFS_LOG/$AB.qclog
meaning output is logges to $DFS_LOG/$AB.qclog !!!
QC1 parameters written into QC1 table: qc_rawmed_zero_odd , raw frame counts qc_SNR_zero_odd , product signal-to-noise ratio qc_rms_zero_odd , product rms qc_plane_rms , rms of plane medians to check for shutter issue