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: http://xmm.vilspa.esa.es/calibration/documentation/CALHB/node204.html
Дата изменения: Tue Sep 20 19:45:19 2011 Дата индексирования: Mon Apr 11 02:48:21 2016 Кодировка: Поисковые слова: mdi |
The intensity distribution map will be stored in CCF CalSourceData (sections 4.3.7 and 4.3.8), in its first extension. A second extension will hold the energy spectrum.
The intensities of the calibration sources will be corrected for the half life of the source, via. a function of the form I=Iexp-(t). Where, (log/T) is an attribute in the CCF file, and time t is the elased time between observationStartTime and reference time which is also an attribute in the CCF file.
The function returns an intensity map for a given CCD, and 0-12 pattern selection.