XMM-Newton SAS: Watchout Page

Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/sas/7.0.0/watchout/6.5/RGS_evlist_timeunit.shtml
Дата изменения: Unknown
Дата индексирования: Sat Dec 22 14:42:58 2007
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Поисковые слова: comet tail

XMM-Newton SAS: Watchout Page RGS spectrum of HR1099

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Watchouts

Software requirements

I cannot filter on the TIME an RGS event file produced with a former SAS version. What am I doing wrong?

Actually nothing. In all SAS versions previous to SAS 6.5 the RGS event list headers lack the TUNIT keyword corresponding to the TIME column. In this case the use of evselect for time filtering is not possible.
The problem dissapears if the TUNIT1 keyword:
TUNIT1 = 's ' / physical unit of field
is added the the first header of the event file. This can be done with various S/W packages. Using FTOOLS for instance by issuing a command:
#> fmodhead events.FIT htemp.dat
where events.FIT is the event list file and htemp.dat a text file including just following line:
TUNIT1 's' / physical unit of field

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Any question about SAS should be addressed to the XMM-Newton help desk.
Updated on: 11-JAN-2006