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Дата изменения: Tue Aug 16 02:20:49 2005
Дата индексирования: Sat Dec 22 12:56:21 2007
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XMM-Newton Science Analysis System


omflatindex (omflatindex-2.6.2) [xmmsas_20050815_1803-6.5.0]

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Description

This task creates and maintains an index of an archive of OM flat-field calibration data which is used by the pipeline. The archive, and the format of the index file, are described in SSC-LUX-TN-0050.

The task can be run in two modes, create and insert. In create mode a new, empty flat-field archive index is created.

In insert mode the start and stop dates of the acqusition of the flat-field are extracted from the primary headers of the combined images (the task assumes that the earliest start time and latest stop time correctly represent the acquisition interval). The number of counts in the modulo-8 corrected flat-field images is also calculated. Using this information an entry is made in to the index at the proper place, maintaining the list in ascending order of observation start time. No check is made for overlapping observation intervals.

omflatfield is not intended for use outside the pipeline environment.