Документ взят из кэша поисковой машины. Адрес оригинального документа : http://xmm.vilspa.esa.es/external/xmm_links/trainee/alumni/s_doerr.pdf Дата изменения: Wed Aug 16 16:16:51 2006 Дата индексирования: Sat Dec 22 14:30:13 2007 Кодировка: Поисковые слова: южная атлантическая аномалия

ESAC

An automated cross cal fitting tool for XMM-Newton 1 ) c a l i b ra ti o n a rc h i v e p ro c e s s i n g
Stephan Doerr University of Tuebingen

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o v e rv i e w
· introduction on calibration · the calibration archive

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· software to automate and track calibration archive updates · structure of calibration archive · future possibilities
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o r g a n i z a t i o n o f c a l i b r a t i o n s o ft w a r e a n d fi l e s

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ODF
O b s e r v a tio n d a ta fi le

1 ) S A S lo o k s w h e n th e o b s e r v a tio n to o k p la c e

2 ) S A S u s e s n e w e s t ( b e s t) a v a ila b le S c ie n c e A n a ly s is S u b s y s te m c a lib r a tio n in f o r m a tio n f o r th e o b s e r v a tio n S /W

SAS

CCF
C u r r e n t C a lib r a tio n F ile s F I T S fi le s

· · ·

calibration algorithms various versions as of launch currently 1 version per year

· ·

parameters for calibration algorithms update possible every day

V e r y fl e x i b l e s y s t e m fo r c a l i b r a t i o n u p d a t e s
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verification of calibration updates

ESAC

judge calibration

New Calibration files or software available for evaluation

fit spectra with XSPEC

Process data: - create calibrated event files -Extract the spectra

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h i s to ry
· -2004: all checks on individual cases "by hand" · 2004-2005: development of semi automatic SW
­ ­ ­ 225 observations to be checked Data processing automatic Fitting semi automatic

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time consuming process for full evaluation

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Work flow until now
XSA data archive
Select SAS Version and Calibration files

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ODF

Processing proc.csh

C a l e v e n t f ile

cleaned spectrum
Cross Cal Archive

Extraction extract.csh flarescreenig source and bg extraction spectra/arf/rmf generation xspec

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` p ro c ` a n d ` e x tra c t '
· c i fb u i l d ­ t o g e t c a l i b r a t i o n fi l e s · o d fi n g e s t ­ c r e a t e s t h e S A S O D F s u m m a r y fi l e · e m c h a in ­ c re a te s a c a l i b r a t e d e v e n t l i s t fo r M O S · e p p ro c ­ c re a te s a c a lib ra te d e v e n t l i s t fo r p n · R G S - r g s p ro c · e v s e le c t · e s p e c g e t - r m f, a r f
retrieve Data from XSA data archive
- G e t C a lib r a t io n F ile s - C T E C o r r e c t io n e t c .

ESAC

calibrated event list
- F la r e s c r e e n in g - sou rce an b ack grou n d e x t r a c t io n - s p e c t r a g e n e r a t io n

cleaned spectrum response matrices

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Structure of the calibration archive
· T h e c a lib ra tio n a rc h iv e c o n ta in s o b s e r v a t i o n s o f t a r g e t s u s e d fo r c a lib ra tio n · T h e c a lib ra tio n a rc h iv e c a n b e fo u n d o n /xdata/xcaldata/XMM/{OBSID} · E v e ry { O B S ID } c o n ta in s s u b fo l d e r s / r e g i o n s w i t h r e g i o n fi l e s ( fo r s o u r c e a n d b a c k g ro u n d ) · M a n y { O B S ID } a lre a d y c o n ta in a s u b fo l d e r / m o d e l , w i t h t h e m o d e l n e e d e d t o fi t t h e d a t a ( w o rk in p ro g re s s )

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Disadvantages and missing bits · only basic archiving

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­ Every time the observations are processed with new calibration files old data is overwritten.

· no version control
­ difficult to compare different calibration states easily

· logfile generation and error handling of the batch processing need to be improved

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M y t ask
· C re a t e a s in g le a p p lic a tio n t h a t in a n a u t o m a t e d w a y c a n
­process data ­Extract the spectra ­Fit the spectra ­keep track of all the version information

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Ad van tag es o f t h is S o lu tio n

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· Calibration scientist is able to process all data with upcoming SAS versions and / or future calibration files with a single script that also fits the data. · Consistent and easy workflow. · As the data is archived different versions of the calibration can be compared easily by the calibration scientists

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Work flow now
XSA data archive
Select SAS Version and Calibration files

ESAC

ODF

Processing Extraction flarescreenig source and bg extraction spectra/arf/rmf generation

C a l e v e n t f ile

Cross Cal Archive Version X_Y_Z Version X_Y_Z Version X_Y_Z

PHA

Automated spectral fitting

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Example (H1426 with SAS devel)

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· S A S 6 .5

· S A S 7 .0 ( U p d a t e o n R G S )

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Future work- Calibration preview tool

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· Provide user not only with current status of calibration but allow to see work in progress · Answer the question: Should I wait to publish my data for the next cal update or not?

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Tool
· Application: Calibration Preview Tool
Cross Cal Archive Version X_Y_Z Version X_Y_Z Version X_Y_Z
C a l s c ie n tis t c a n tic k to p u b lis h in f o r m a tio n
Internal web page engine

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V e r s io n n

In tern a l w eb p a g e
C o m m e n t to b e m a d e p u b lic

V e r s io n n + 1
C o m m e n t to b e m a d e p u b lic

T ic k b o x to p u b lis h

E x tern a l w eb p a g e
C o m m e n t to b e m a d e p u b lic

U p lo a d o f o th e r in te r e s tin g c a lib r a tio n p ro g res s

C o m m e n t to b e m a d e p u b lic

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