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XMM-Newton Science Analysis System


ommosaic (ommosaic-1.18.1) [???]

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Change history

• Version 1.21 (2008-09-18) - The subroutine RemoveGaps is corrected to prevent interpolating and filling the corners between two images instead of filling in the gaps. The file name in the message produced by the task is shorten (the task message was too long and estetically not very nice because of the long path included into the file name).
• Version 1.20 (2008-08-01) - A half-pixel shift in the coordinates of the reference pixel CRPIX1 and CRPIX2 of the output sky-image is removed. This shift, which was introduced by the subroutine calculateOutputSize, was always there.
• Version 1.19 (2008-07-09) - The name of the attribute RA_PNT in the header of the input image file is corrected in the subroutine ModifyAstrometryAttributes (erroneously was DEC_PNT). This attribute is modified only when the astrometry correction was not applied to the image before running ommosaic.
• Version 1.18 (2008-04-29) - Introducing the keyword POSINTRP (false/true) to indicathe whether the the astrometric correction was done by omatt (using the catalogue) or by interpolation (using the coorections from other exposures belonging to the data set). The input images are now astrometry- corrected (shifted) in the case they were not corrected by omatt. In this case the interpolated correction is used.
• Version 1.17 - interpolating the RA and DEC offsets for those exposures that were not astrometry corrected taking the offsets from the corrected exposures. Making use of the RA_OFF and DEC_OFF attributes produced by omatt (this is a continuation of updates for fixing SSC-SPR-3707).
• Version 1.16 - The RA shifts of the individual images that form the mosaic are multiplied by cos(DEC) - SSC-SPR-3710.
• Version 1.15 - Description corrected
• Version 1.14 - Making use of the keyword POSCOROK for astrometry-corrected images and shifting these images according to the CRVAL1 and CRVAL2 keywords (SSC-SPR-3707).
• Version 1.5.5 - Modified to add ATT_SRC keyword (SPR 2885)
• Version 1.5.4 - Documentation updated.
• Version 1.5.2 - Modified to add correct exposure time to output file (SPR 2795)
• Version 1.5.1 - Increased maximum allowable exposure time (SPR 2786)
• Version 1.5 (11.02.2002) Added keyword OBJECT to output file (SPR 2700).
• Version 1.3 - Code ammended to properly mosaic a mixture of low and high-resolution images (fixes SPR 2638). New keywords added to output file (SPR 2658). Obsolete parameter samplingpoint deleted. Optional parameters exposure and exposuremap added. Pixels outside image boundary set to NULL.
• Version 1.2.1 - Filter check code ammended to fix SPR 2620.
• Version 1.2 - Check introduce in previous version ammended.
• Version 1.1 - Distribution changed to "world". Program modified to check that 2 or more overlapping images aren't being combined- if so a warning message is output.
• Version 1.0.3 01-05-2001 Output image changed to 32-bit pixels. Output pixel-size changed to largest of the input-pixel sizes (fixes SPR 2353).
• Version 1.0.2 06-02-2001 Test harness changed.