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: http://xmm.vilspa.esa.es/sas/5.4.1/doc/omfchain/node10.html
Дата изменения: Fri Jan 10 23:33:22 2003 Дата индексирования: Sat Dec 22 10:29:21 2007 Кодировка: |
For each exposure to be processed there are also files:
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.
Often a raw image FIT-file corresponding to the OM Fast mode window is also present in the input data set, as well as a larger image corresponding to the OM imaging window for the same exposure (rrrr_iiiiiiiiii_OMSeeewwIMI.FIT), but these files are not used for the Fast mode chain.
XMM-Newton SOC/SSC -- 2003-01-10