Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/8.0.0/doc/omichain/node7.html
Дата изменения: Wed Jul 2 12:00:23 2008
Дата индексирования: Fri Sep 5 19:42:08 2008
Кодировка:
Поисковые слова: mercury

XMM-Newton Science Analysis System


omichain (omichain-1.51) [xmmsas_20080701_1801-8.0.0]

Meta Index / Home Page / OPERATION

Initial processing

1. The SAS summary file is examined to produce a list of the OM filters that were used in the observation, and for each filter a list of the exposures for that particular filter is also produced.

2. A flatfield (currently a static flat, with each pixel have the value 1, from the CAL data) is then created by the task omflatgen.

3. The chain then scans the input directory to check that the necessary auxilliary files (e.g. tracking history, window files, housekeeping files etc) are present, exiting with an error message if any key files are absent.