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Last modified: 2 May 2013

URL: http://cxc.harvard.edu/ciao/bugs/dmextract.html

Bugs: dmextract

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For detailed information and examples of running this tool, refer to the dmextract ahelp file.

Table of Contents

Bugs

Bugs

dmextract requires a "sky" vector to bin on x and y

If the x and y columns are not associated as a "sky" vector, dmextract can't bin on them: 

unix% dmextract infile="img.fits[bin (X,Y)=@ann.reg]" ...

# dmextract (CIAO): dsDMEXTRACTREGWCSWERR -- WARNING: Expected 2 dimensions for the sky descriptor. Skipping translation of region to WCS. 
or
# dmextract (CIAO): dsFINDCOLUMNERR -- ERROR: Column 'sky' was not found
in file 'HDU2'.

Workaround:

Edit the file header to create a sky vector. 

unix% cat dmhedit.lis
#add
MTYPE1 = POS
MFORM1 = X,Y

unix% punlearn dmhedit
unix% dmhedit img.fits dmhedit.lis

Problem with pgrid() stack syntax[New] (02 May 2013)

There is a problem using the pgrid() stack syntax when making radial profiles. 

unix% dmextact "image.fits[sky=pgrid(4096,4096,0:1000:100,30:60:30)]" sector.fits opt=generic

While the tool runs to completion, the output is not always correct.


Last modified: 2 May 2013
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