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 Hedit colon separated coordinates
   
dmag
 12/02/2016 05:22PM (Read 410 times)  
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Registered: 09/14/2016
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I am trying to update the header of my fits file with coordinates and time of the observation and i want them in the 'hh:mm:ss' format. I use the hedit command as follows

hedit test.fits RA '10:17:58' add+

but iraf convert it into a decimal format and saves it as '10.2994' that is not what i want. How can i force it to preserve the correct format in hours minutes and seconds?

 
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fitz
 12/06/2016 09:00AM  
AAAAA
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Registered: 09/30/2005
Posts: 3991

Sexagesimal values are supported by the CL and various tasks as native types, combined with the fact that HEDIT is expecting an *expression* as the argument, the single quotes don;t actually define your value as a string (as far as the task is concerned). The trick is to use parentheses in the expression so your value is treated as a simple string constant. For example,

cl> hedit test.fits RA "('10:17:58')" add+

will do what you want.

 
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