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XMM-Newton Science Analysis System


omgprep (omgprep-1.6.1) [???]

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Change history

• Version 1.8 (2008-09-26) A bug causing a subscript message is fixed.
• Version 1.7 (2008-09-17) Introducing two new parameters in order to include the capability of removing scattered-light features from the rotated grism image.
• Version 1.5 (2006-11-09) A lot of small changes are introduced to get more accurate RA and DEC coordinates of the grism image sources (SSC-SPR-3633)
• Version 1.3 (2006-07-11, VNY) The values given in the MODES table of the output file are corrected (to correspond to the values given by DETSEC keyword in the header of the main table (SSC-SPR-3622)
• Version 1.2 (30.06.2006) A new keyword (OMGWIN) was introduced into the header of the output file instead of the return flag to indicate the extractability of the spectrum from the current window (SSC-SPR-3616). If the keyword is set to zero then the window size is too small and the spectrum cannot be extracxted. The value 1 indicate that the window is large enough for spectra extraction. Another small correction was introduced in the header of the output file: the reference pixel indices are set to the specific reference pixel of the grism filter (the coordinates of the center of the image are not valid as the reference for the grism filters).
• Version 1.1.2 (09.06.2006) A small bug is fixed (SSC-SPR-3607)
• Version 1.1.1 (09.06.2006) A flag indicating the extractability or non-extractability of the spectra from the image is introduced. In the case of a very small window, when less then a half of the spectrum is present, the task will return a non-zero flag indicatimg that further processing of the current exposure is useless (SSC-SPR-3606)
• Version 1.1 (28-09-2005) The keywords such as OBSERVER, OBJECT, etc. are propagated from the input to output (SSC-SPR-3525)
• Version 1.0.4 - (01-06-2005) The faint moire pattern that appeared due to the undistortion algorithm is removed
• Version 1.0.3 - The WSC keywords are removed from the output file, because they were causing the appearence of a very odd coordinate grid when working with ds9 and fv tools (SSC-SPR-3363).
• Version 1.0.2 - the number of extra pixels added at the edges of the window is divided by the binning factor (for the consistency reasons); SSC-SPR-3346
• Version 1.0.1 - the output image is slightly enlarged in order not to miss the pixels that go outside of the image due to distortion correction (SSC-SPR-3318)
• Version 1.0 - passed the version number to 1.0
• Version 0.1 - (10-24-2003) Created a new SAS task to be included into the grism chain (for processing OM images with grism filters)