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: http://xmm.vilspa.esa.es/sas/8.0.0/doc/arfgen/node8.html
Дата изменения: Wed Oct 22 15:41:49 2008 Дата индексирования: Tue Aug 18 08:36:24 2009 Кодировка: Поисковые слова: mercury surface |
arfgen spectrumset=spectrum.ds badpixlocation=myevents.ds
The bad pixel information is, at least initially, stored in the event files.
By default the code looks for pixels which fall outside the CCD collecting area and outside the field-of-view with a resolution of 2 arcseconds. In some cases, for example if the majority of the source region lies outside the field of view, this resolution is too coarse. It may be improved by:
arfgen spectrumset=spectrum.ds badpixlocation=myevents.ds badpixelresolution=1.0 which improves the accuracy of the bad pixel calculation. Note that an increased resolution will cause the execution time of the code to increase substantially.