| COMPARE_VALID_MaxDiff | float | Maximum acceptable MasterFlat compare value | |
| COMPARE_VALID_Stdev | float | Compare MasterFlat value | |
| QC_VALID_Mean_Max | float | Maximum acceptable MasterFlat Mean value | |
| QC_VALID_Mean_Min | float | Minimum acceptable MasterFlat Mean value | |
| QC_VALID_Median_Max | float | Maximum acceptable MasteFlat Median value | |
| QC_VALID_Median_Min | float | Minimum acceptable MasteFlat Median value | |
| QC_VALID_Version | str | Version of MasterFlat | |
