(r3) UnitsDesc < IVOA

IVOA Web>IvoaDataModel>UnitsDesc (revision 3) (raw view)~~EditAttach~~

<H1>IVOA DM Work Package : Units description and usage</H1>
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 %RED% !!! Work in progress : Site under re construction !!! %ENDCOLOR%                

   * lead [[IVOA.AnitaRichards][Anita Richards]] 
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<H2>Goal </H2>
This workpage is meant to record the general practice in manipulating units for astronomical data and define a simple way to homogeneise their representation within VO services
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<H2>Charter </H2>
      * poll the community to see how units are defined , used , and coded in archives and services

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<H2>Results and Feedback </H2>
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   * To come
 
<H2>Working Documents </H2>
   * Jcm note about units and UCD : [[%ATTACHURL%/??????][????]]
   * Some documents to read for starting: 
      * a few references extracted from the VOTable document (section 9 References):
         * http://vizier.u-strasbg.fr/doc/catstd-3.2.htx
         * Section 4 in Greisen and Calabretta 2002, A&A 395, 1061; 
         * IAU Recommendations concerning Units from the IAU Style Manual by G.A. Wilkins (1989) available at http://www.iau.org/Units.234.0.html

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<H2>More documentation  </H2>
   * see article at : [[%ATTACHURL%/votable-1x.html][votable-1x.html]]
   * check units in VOSpec, SpecView? 

<H2>Interactions with other WG efforts</H2>
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   * [[IVOAVOQL][IVOA VO Query Langage]] <br/>
  <br/>

<H2>Requirements from other groups</H2>
   * in 

   * out 

   * 

<H2>Conclusions</H2>
[Under construction...]<br/>


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Topic revision: r3 - 2007-09-10 - MireilleLouys

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