[fitsbits] start of Public Comment Period on the Green Bank convention

THIERRY FORVEILLE thierry.forveille at ujf-grenoble.fr
Mon Jun 22 14:43:09 EDT 2015


> > The proposed draft text is available at
> > http://sax.iasf-milano.inaf.it/~lucio/FITS/Conventions/greenbank-upd2.pdf
> 
> I have to say I find way of storing images pretty confusing. What's the
> advantage of storing them this way instead of creating separate FITS
> extensions?
>
The context of the use cases that I know of is one where the images are 1D
(single-dish radioastronomical spectra), small (O(1Kpixels)), and numerous
(O(10^4)). Creating separate FITS extension would waste significant space
(of order a factor of two), and also would not outline as well the structural
unity of the dataset.

>  Is it just of historical interest? 
>
The convention is in use in single dish radio-astronomy. I don't know of
any use case outside that field.



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