| BinsizeVal | error |
| | The value of the bin size must be an integer. |
| WrongInputFiles | error |
| | The number of RGS event files and RGS source list must be the same. |
| EventListSize | error |
| | The number of RGS event files must be one or two. |
| WrongObservation | error |
| | It is not possible to create a lightcurve of two event files from different observations. |
| NotOverlappingTime | error |
| | The two RGS event list do not overlap in time. |
| BinningError | error |
| | Error calculating the number of bins. Check the start time and stop time. |
| GTI&EXPOSU Inconsistency | error |
| | The number of rows in the STDGTI and EXPOSU extensions are not equal. This should not happen. The cause of this problem is a JUMP in the frame counter in the AUX and SPE files. Please contact XMM-Newton SOC |
| NoFilteredEvents | warning |
| | One of the CCD does not have any event. |