Updating WCS of Chandra fits
daisymak wrote on Dec 15, 2006
I am working on Chandra X-ray data.
I have used ccmap to do astrometric correction of one of the images obtained by using the command dmcopy on the evt2 file of Chandra. Then I have a database for storing the result of how to transform the images.
What I want to do is to correct the astrometry on the evt2 file. Is there any method that I can update the WCS header of evt2 file using results from ccmap?
I have used ccmap to do astrometric correction of one of the images obtained by using the command dmcopy on the evt2 file of Chandra. Then I have a database for storing the result of how to transform the images.
What I want to do is to correct the astrometry on the evt2 file. Is there any method that I can update the WCS header of evt2 file using results from ccmap?
Mike Fitzpatrick wrote on Dec 15, 2006
I'm confused. Doesn't just setting the CCMAP 'update' parameter put the WCS in the image, or is this a different kind of file than just a FITS image?
-Mike
-Mike
Last post on Dec 15, 2006