| Block RATE does not exist in the background rates file | warning  | 
|   | 
 corrective action: Issue a
    warning. Background corrections are not applied   | 
| Input background rates table is empty | warning  | 
|   | 
 corrective action: Issue a warning. Background corrections are not applied   | 
| Source and background rates files from different exposures | warning  | 
|   | 
 corrective action: Issue a warning. Check the ODF files   | 
| Background rates and region files have different EXP_IDs | warning  | 
|   | 
 corrective action: Issue a warning. Check the ODF files   | 
| High value of the source rate | warning  | 
|   | 
 corrective action: Issue a warning; set the count rate
to the maximal possible value corresponding to the current frame time.   | 
| Background subtracted rate has negative values | warning  | 
|   | 
 corrective action: Issue a warning   | 
| Block RATE does not exist in the source rates file | warning  | 
|   | 
 corrective action: Issue a warning. Check the ODF files   |