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: http://xmm.vilspa.esa.es/sas/6.5.0/doc/rgsenergy/node3.html
Дата изменения: Tue Aug 16 05:44:49 2005 Дата индексирования: Sat Dec 22 10:11:26 2007 Кодировка: Поисковые слова: cygnus |
This task calibrates the telemetered RGS pixel energies. It operates on a CCD-specific raw event list created by task rgsframes and adds the PI column to the PIXELS table. The calibration consists of three corrective procedures performed in sequence: offset correction, gain correction, and CTI correction. The CAL Handbook describes each procedure in detail. The offset correction can use static calibration data from the CCF (one value per CCD and node by each RGS), but also dynamic offset data derived from the diagnostic images can be used for subtraction. There are two methods available:
For diagnostic purposes the gain and CTI corrections can be disabled independently (parameters withgain and withcti).
Throughout this document a marks items that do not apply to HTR
mode data and a
marks items that apply only to HTR mode data.