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оригинального документа
: http://xmm.vilspa.esa.es/sas/6.5.0/doc/exanalyser/node3.html
Дата изменения: Tue Aug 16 03:01:09 2005 Дата индексирования: Sat Dec 22 12:06:40 2007 Кодировка: |
Within the XMM pipeline it is necessary to make a decision a priori whether a given exposure in an observation should be passed through the normal ``scientific'' pipeline.
The task will be called once for each and every exposure in an XMM observation, as the very first step in the pipeline analysis. It will provide a simple ``go/no go'' indication to the pipeline control system (PCMS) whether the exposure is suitable for passing to the standard pipeline analysis. This decision is based solely on information readily available from the ODF (via the OAL), for example instrument mode, filter wheel position (except RGS), exposure duration, etc.
Where exposures are to be ignored by the PCMS, the task will generate an error. This will return a non-zero exit status to the PCMS, which can then act on this signal and proceed no further with the analysis of the exposure.
Exposures rejected by exanalyser do not become ``invisible'', within the pipeline. Data for the unanalysed exposures will be available for use by pipeline tasks should this be required (eg. MOS offset/variance data exposures). Furthermore output from the summary tasks will still contain information on the unanalysed exposures.
The current baseline is for exanalyser to reject the following exposures:
Other, more subtle conditions will doubtless develop as we gain experience with in-flight XMM data. These extra conditions will be added to exanalyser as they are developed.
In the current version, only the exposure duration condition is implemented, pending an upgrade to the OAL to read IPPVs. More functionality will be available once the OAL upgrade is available.
| EPIC MOS supported modes | Prime full window, Prime partial RFS, Prime partial W2, |
| Prime partial W3, Prime partial W4, Prime partial W5, | |
| Prime partial W6, Fast mode uncompressed | |
| EPIC pn supported modes | Prime full window, Prime large window, Prime small window, |
| Fast mode timing, Fast mode burst | |
| OM supported modes | OM science user defined, EPIC M1 image, EPIC M1 image/fast, |
| EPIC M2 image, EPIC M2 image/fast, EPIC pn image, | |
| EPIC PN image/fast, RGS1 image, RGS1 image/fast, | |
| RGS2 image, RGS2 image/fast, OM image, | |
| OM image/fast | |
| RGS supported modes | Spectroscopy baseline, Spectroscopy + Q, HER, |
| HER with SES, HER with SER, HTR single CCD, | |
| HTR multiple CCD | |
| EPIC supported filters | Open, Thin1, Thin2, Medium, Thick |
| OM supported filters | V, Magnifier, U, B, White, Visible grism, UVW1, UVM2, UVW2, |
| UV grism 1, Barred-U |