[AstroPy] astropy fits time header

[Demitri Muna]

On Sep 13, 2016, at 11:53 AM, Bob Garwood <bgarwood at nrao.edu> wrote:

> This is the FITS Y2K agreement approved by the IAU-FWG prior to 2000.  It shows that the old style 'DD/MM/YY' remains an acceptable form for dates prior to 2000. 
> 
> http://fits.gsfc.nasa.gov/year2000.html
> 
> According to the FITS standard document (also at GSFC, see the link in Peter's e-mail) that form should not be used in FITS files produced after 1 January 2000.  But it's still valid FITS.  Because "once fits, always fits".

Fair enough! It was actually the next paragraph from what I quoted earlier, my apologies. I'll have to keep an eye out for files written after 2000 that use that format to see what fitsverify says.

That of course means that it is no longer correct to write files with that date format.

Demitri

_________________________________________
Demitri Muna
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Department of Astronomy
Il Ohio State University

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