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giannicatanzaro
 04/09/2015 08:02AM (Read 1102 times)  
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Junior
curious

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Registered: 03/08/2011
Posts: 16
hello guys

I downloaded a FEROS tarball with data like those ones:

r.FEROS.2006-06-20T04:16:45.241.1051.fits
r.FEROS.2006-06-20T04:16:45.241.1052.fits
r.FEROS.2006-06-20T04:16:45.241.1061.fits
r.FEROS.2006-06-20T04:16:45.241.1062.fits
r.FEROS.2006-06-20T04:16:45.241.1081.fits
r.FEROS.2006-06-20T04:16:45.241.1082.fits

does someone know how to read them with splot?

cheers

gianni

 
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fitz
 04/09/2015 04:28PM  
AAAAA
Admin

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Registered: 09/30/2005
Posts: 4040
I'm not familiar with the data format for this instrument or exactly what problem you might be having. The SPTABLE external package (see the home page) can handle tabular spectral formats, if this is a multi-extension FITS file then you would need to specify the extension number when calling splot. Otherwise, on some Mac systems the ':' in the filename could possibly be seen as a path delimiter but that has been deprecated in recent versions of MacOS.

Exactly what problem do you see when you try to run SPLOT on the file?

 
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gmaravel
 06/16/2015 04:19PM  
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Newbie

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Registered: 06/11/2014
Posts: 8
Hi!

I think there is no problem to read the data with splot. I just tried that with some of my own data and it works simple as that:
splot r.FEROS.2006-06-20T04:16:45.241.1081.fits
or
splot r.FEROS.2006-06-20T04:16:45.241.1081.fits[0]

Now there are extensions only for the *1081/1082 files which correspond to the different orders of the spectrograph. Splot cannot displayed them if you just select an extension (eg r.FEROS.2006-06-20T04:16:45.241.1081.fits[1] - I do not know why).

I suppose that you are probably intereted in the final products (1d fully calibrated and merged spectra, see [1]) which are indicated as *1081 for the object fiber and *1082 for the sky fiber (if this mode was used)

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[1] https://www.eso.org/sci/facilities/lasilla/instruments/feros/tools/DRS/FileNameConventions.html


 
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