Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/6.1.0/doc/omsrclistcomb/node14.html
Дата изменения: Mon Nov 22 23:55:49 2004
Дата индексирования: Sat Dec 22 13:54:25 2007
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XMM-Newton Science Analysis System


omsrclistcomb (omsrclistcomb-1.30.4) [xmmsas_20041122_1834-6.1.0]

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Future developments

• At the present time the RAs and DECs in the input list of exposures have not been corrected for the unknown offset between the measured and true positions of the centre of the OM camera field-of-view. Hence, this could lead to sources being spuriously treated as being the same one, although it is currently believed that the offsets will change very little from one exposure to another within an observation. If this is confirmed, then omsrclistcomb may eventually correct the positions when the master source-list table has been produced- otherwise omatt will attempt to correct the positions for each source-list, although this clearly won't be possible when the image only contains a few stars.