| Pre42 | error |
| | Observation was before Rev 42. Cannot analyze. |
| notMOS | error |
| | Input event list INSTRUME must be EMOS1 or EMOS2 |
| zeroEVENTS | error |
| | Input event file has no EVENTS block |
| noRENAME | error |
| | Failed to rename mask to finished image |
| notM1M2PN | error |
| | Instrument is not M1, M2, or even PN |
| noOPEN | error |
| | Cannot OPEN region file, iostat=N |
| noREAD | error |
| | Cannot READ region file, iostat=N |
| noREGIONfile | error |
| | Chosen region file does not exist |
| FastSubWithCCD1 | warning |
| | Fast SUBMODE incompatable with ccd1=T
corrective action: Reset ccds(1)=F, continue |
| noLUN | warning |
| | Cannot open LUN for text file read
corrective action: Skip region file |
| noEXPOSURE | warning |
| | Input file does not contain an EXPOSURE attribute
corrective action: continue |
| noLIVETInn | warning |
| | Input file does not contain a LIVETInn attribute
corrective action: continue |