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XMM-Newton Science Analysis System


ommosaic (ommosaic-1.11.7) [xmmsas_20050815_1803-6.5.0]

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Description

This task accepts an arbitrary number of PPS OSW rotated image files and produces a mosaiced image. The task description is basically the same as that for emosaic, from which it has been derived, with the important difference that it does not need an exposure image. The mosaiced image is not intended to be used for photometry or astrometry. The task can process a mixture of both low and high-resolution images- in such case a warning is issued and the pixel-size of the mosiaced image is that of the low-resolution images. The program is mainly intended to combine the five separate images (The Rudi-five) that make up a full-frame image for a given filter. It can also be used to mosaic images from different filters, in which case a warning will be issued.

The output pixel size (in degrees) and world-coordinate system (WCS) reference coordinate for the output image are set to those of the first image with the largest pixel size. The task can read 16-bit, 32-bit or 64-bit input images, the output image is (currently) always of 32-bit real type.


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XMM-Newton SOC/SSC -- 2005-08-16