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: http://xmm.vilspa.esa.es/sas/6.5.0/doc/embadpixfind/node8.html
Дата изменения: Tue Aug 16 05:04:08 2005 Дата индексирования: Sat Dec 22 13:04:33 2007 Кодировка: Поисковые слова: trees |
If finddead=Y, embadpixfind
looks for too dark pixels, rows and
columns too.
The Li and Ma formula (Eq.1) is not used for dark pixels.
The Gaussian significance is computed in the same way (but on the
negative side) and the cumulative binomial probability is computed from:
Whatever findbright and finddead, dark and bright columns and rows are always searched for together in order of decreasing significance (either positive or negative). This avoids finding spurious bright columns/rows next to very dark ones, and vice-versa.
If one of findbright or finddead is set to False, the corresponding bad pixels/columns/rows are not written to the output file.
XMM-Newton SOC/SSC -- 2005-08-16