Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/5.4.1/doc/omichain/node6.html
Дата изменения: Fri Jan 10 23:30:27 2003
Дата индексирования: Sat Dec 22 09:18:23 2007
Кодировка:
Поисковые слова: http astrokuban.info astrokuban

XMM-Newton Science Analysis System


omichain (omichain-1.34.7) [xmmsas_20030110_1802-5.4.1]

Meta Index / Home Page

Input Files

1. rrrr_iiiiiiiiii_SCX00000NPH.FIT - OM Non-periodic Housekeeping file
2. rrrr_iiiiiiiiii_SCX00000PEH.FIT - OM Periodic Housekeeping file
3. rrrr_iiiiiiiiii_SCX00000FFX.FIT - PPS OSW Flatfield Image
4. rrrr_iiiiiiiiii_SCX00000TCS.FIT - Spacecraft time correlation file
5. rrrr_iiiiiiiiii_SCX00000ATS.FIT - Spacecraft attitude history file

For each exposure to be processed there are also files:

1. rrrr_iiiiiiiiii_OMSeeewwTHX.FIT - OM Tracking History Data Auxiliary file
2. rrrr_iiiiiiiiii_OMSeeewwWDX.FIT - OM Priority Window Data Auxiliary file

where rrrr is the 4 digit XMM rev. number, iiiiiiiiii is the 10 digit observation id, eee is the exposure number (e.g. 006 etc.), and ww is the window identifier (00 or 01).

If THX-file are not present, no tracking corrections can be applied but this is often not critical since XMM's tracking appears to be good to around 1 arc-second. If THX files are absent, a dummy file is created by omprep.