There are several data products that the user receives from the eROSITA pipeline processing. The data file names give an idea of the type of products they are (see table below). The file names are of the form:
PQii_jjjjjj_klm_nnnnnn_rrr_Rooo.fits
| Meaning | Options | Explanation | Task | |
|---|---|---|---|---|
| P | Observation mode | e | Single eRASS | - |
| s | Cumulative all-sky survey | - | ||
| p | Pointing | - | ||
| f | Field scan mode | - | ||
| l | Slew observation | - | ||
| Q | Ownership | m | MPE | - |
| i | IKI | - | ||
| b | MPE+IKE ownership | - | ||
| c | Calibration | - | ||
| o | Other | - | ||
| ii | eRASS number | 01...08 | Survey | - |
| AO | Number for pointings | - | ||
| 00 | For calPV | - | ||
| jjjjjj | Sky map number | For survey: three digits each for RA and DEC degrees of center position | - | |
| For pointing: observation ID | - | |||
| k | Telescope ID | 1...7 | Individual cameras/telescopes | - |
| 0 | All cameras/telescopes | - | ||
| 8 | Cameras with on-chip filter | - | ||
| 9 | Cameras without on-chip filter | - | ||
| l | Filter wheel number | 0 | Closed | - |
| 1 | Open | - | ||
| 2 | Filter | - | ||
| 3 | Calibration source | - | ||
| 4 | Intermediate/undefined | - | ||
| m | Energy band | 0 | 0.2-10.0 keV. | - |
| nnnnnn (variable length) | Product type | EventList | Event list file | EVTOOL |
| BoxDetSourceListL | Source list from source detection in local detection mode | ERBOX | ||
| BoxDetSourceListM | Source list from source detection in map detection mode | ERBOX | ||
| MaxLikSourceList | Source list from source detection by maximum likelihood method | ERMLDET | ||
| CheeseMask | Cheese image | ERBACKMAP | ||
| SourceMap | Source model image | ERMLDET | ||
| SourceCatalog | Source catalogue | CATPREP | ||
| ImageTot | Image in a given energy band | EVTOOL | ||
| ExposureMap | Exposure map in a given energy band | EXPMAP | ||
| BackgrImage | Background map | ERBACKMAP | ||
| DetectionMask | Detection mask | ERMASK | ||
| Source specific products (the number correspond to the dataset version and processing configuration) | SourceSpec_00001 | Source spectrum | SRCTOOL | |
| BackgrSpec_00001 | Source backgroun spectrum | SRCTOOL | ||
| LightCurve_00001 | Source light curve | SRCTOOL | ||
| EventList_00001 | Source event list | SRCTOOL | ||
| RMF_00001 | Source Response Matrix File (RMF) | SRCTOOL | ||
| ARF_00001 | Source Ancillary Response File (ARF) | SRCTOOL | ||
| rrr | Dataset version | |||
| R | Processing configuration | r | Release | |
| i | Internal | |||
| t | Testing | |||
| ooo | Processing configuration number |
Example: sm01_002090_010_EventList_001_r002.fits, which is an event list file from the survey mode. It belongs to MPE and it comes from eRASS01. The event list is the result of combining all cameras with an open filter wheel in the whole energy band.