Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/8.0.0/doc/ommodmap/node5.html
Дата изменения: Wed Jul 2 09:51:59 2008
Дата индексирования: Fri Sep 5 19:42:12 2008
Кодировка:
Поисковые слова: http www.stsci.edu science goods

XMM-Newton Science Analysis System


ommodmap (ommodmap-2.17.2) [xmmsas_20080701_1801-8.0.0]

Meta Index / Home Page / Description

Creating the mod-8 map

A box of size nbox is first stepped across the image and within the box a sigma clipping algorithm is used to mask out sources and any surrounding pixels affected by coincidence loss. Then the average of all remaining mod-8 tiles within a sliding box of size nbox is computed and used to produce the mod-8 map.