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XMM-Newton Science Analysis System


rgsenergy (rgsenergy-2.1) [xmmsas_20160201_1833-15.0.0]

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Description

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:

The method used for offset correction is flagged in the keyword "OFFSCORR" in each EXPOSURE extension of the events file (either as "CCDNODE" or "PIX2PIX", corresponding to the one value or pixel by pixel subtraction, respectively).

For diagnostic purposes the gain and CTI corrections can be disabled independently (parameters withgain and withcti).

Throughout this document a \dag marks items that do not apply to HTR mode data and a \ddag marks items that apply only to HTR mode data.


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XMM-Newton SOC/SSC -- 2016-02-01