Hi all!I've been troubled by a problem when I use the command <msctpeak> to update the WCS. The parameters are setted as below.
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mscred> mscfinder
mscfinder> epar msctpeak I R A F
Image Reduction and Analysis Facility
PACKAGE = mscfinder
TASK = msctpeak images = "iff3570.fits" List of WCS calibrated Mosaic images
coordinates = "iff3570-20" List of ra(hr), dec(deg), optional id
database = "iff3570.db" Database for astrometric fit
(extname = "") Extensions
(epoch = 2008.33322) Coordinate epoch
(update = yes) Update image header WCS following fit?
(autocenter = no) Center catalog coords when entering task?
(boxsize = 9) Centering box fullwidth\n
(projection = "tnx") Sky projection geometry
(fitgeometry = "general") Fitting geometry
(function = "polynomial") Surface type
(xxorder = 4) Order of xi fit in x
(xyorder = 4) Order of xi fit in y
(xxterms = "half") Xi fit cross terms type\n
(yxorder = 4) Order of eta fit in x
(yyorder = 4) Order of eta fit in y
(yxterms = "half") Eta fit cross terms type?\n
(reject = INDEF) Rejection limit in sigma units\n
(interactive = yes) Enter interactive image cursor loop?
(frame = 1) Display frame number
(marker = "circle") Marker type
(omarker = "plus") Overlay marker type
(goodcolor = "blue") Color of good marker
(badcolor = "red") Color of bad marker
(fdimages = "")
(fdcoords = "")
(mode = "q")
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When I run <msctpeak>, there will be many red circles around the calibration sources. And then, in the cursor mode of DS9, when I click the key 'a' and 'k' on a source, the problem happens:
The blue circles, which are expected to be rightly on the sources, always have a large offset from the sources. What's more, when I redo the task, the offset changes every time. Here is an example from a part of the result:
Help!
Thank you!
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Problem when using <msctpeak>
06/10/2011 04:29AM (Read 1684 times)
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