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sscibell |
10/12/2015 10:38PM (Read 656 times)
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Status: offline
Registered: 09/02/2015
Posts: 10
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Hello,
Is there a task in iraf that can convert units of a 2D image? For example, from deg vs. wavelength to arcsec vs. velocity?
Thanks!
SS
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fitz |
10/21/2015 04:01PM
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Status: offline
Registered: 09/30/2005
Posts: 4040
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There's no specific task I know of to do this. The units are defined by the image WCS so you could edit the values using tasks like HEDIT to convert them manually or from a script, however this assumes you won't need to also remap the pixels in some way. Have a look at the SPECWCS help page for additional information on spectral WCS headers as well.
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