| MissingParameter | error |
| | Missing input file name |
| FileMismatch | error |
| | Inconsistent number of input images |
| FileMismatch | error |
| | Inconsistent instruments or bands |
| WrongInst | error |
| | Unknown instrument |
| badDatamode | error |
| | IMAGING mode data required for this task |
| NoGTI/noExposure | error |
| | No GTI extension and no EXPOSURE keyword found |
| ArrayOutOfRange | error |
| | DSS contains more than 5000 time intervals |
| noGTI | error |
| | No GTI or TIME filter in DSS |
| noGTI | warning |
| | No GTI extension found in input image
corrective action: Look for EXPOSURE keyword; assume one GT interval of duration given in EXPOSURE |
| NumGTI | warning |
| | Number of GTI extensions /= number of chips
corrective action: Assume same GTI for all chips |
| NoBadPix | warning |
| | BadPixel extension not found
corrective action: Create exposure map without bad pixels |
| NoExpoExt | warning |
| | Exposure extension not found
corrective action: Assume 100 % exposure in each GTI |
| NoFilt | warning |
| | No FILTER attribute found
corrective action: Assume open filter position |
| NoSubMode | warning |
| | No valid SUBMODE attribute found
corrective action: Assume full window mode |
| undefinedHelpVector | warning |
| | Help vector has undefined length
corrective action: Taking aspect solution as help point to continue |
| MissingAttribute | warning |
| | Keyword is missing in input file
corrective action: Keyword is not copied to output file |
| NullValues | warning |
| | NULL values in the attitude table were ignored
corrective action: NULL values will be ignored |
| NoOffset | warning |
| | No EPN offset extension found
corrective action: no offset treatment done |