unit

[Douglas Tody]

Also, the recent ObsTAP document contains various tables listing data model
elements and their attributes, including units, which we hope illustrate
what should be used.  - Doug


On Wed, 4 May 2011, Mark Taylor wrote:

> On Tue, 3 May 2011, Jaiwon Kim wrote:
>
>> Dear all,
>>
>> What is an 'ivoa standard' way of specifying unit in services implementing
>> IVOA protocols? Should be 'meter' or 'm'?  'sec' or 's', 'day' or 'd'?, etc.
>>
>> I thought that there has been some efforts on units in DM group.
>>
>> Thanks in advance,
>>
>> Jaiwon
>
> Jaiwon,
>
> I believe there is a unit standardisation effort going on in the IVOA,
> though it is work in progress.  In absence of a more authoritative
> response from somebody involved with that effort, as far as I know
> the closest thing to an answer to this based on an existing IVOA
> Recommendation is what's done in VOTable: see VOTable 1.2 section 4.4:
>
>   http://www.ivoa.net/Documents/VOTable/20091130/REC-VOTable-1.2.html#ToC28
>
> and reference [3] in that document:
>
>   http://cdsarc.u-strasbg.fr/doc/catstd-3.2.htx
>
> Mark
>
> --
> Mark Taylor   Astronomical Programmer   Physics, Bristol University, UK
> m.b.taylor at bris.ac.uk +44-117-928-8776 http://www.star.bris.ac.uk/~mbt/
>