International Virtual Observatory Alliance

Difference: UnitsDesc (2 vs. 3)

Revision 32007-09-10 - MireilleLouys

  META TOPICPARENT 
  name="IvoaDataModel"  

 IVOA DM Work Package : Units description and usage 


  !!! Work in progress : Site under re construction !!!
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+  name="IvoaDataModel"
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+ led by Anita Richards
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+ lead Anita Richards
  Goal
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+This workpage is meant to record the general practice in manipulating units with astronomical data and define a simple way to homogeneise their representation within VO services
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+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
  Charter 
 
 
 
 poll the community to see how units are defined , used , and coded in archives and services
 
 




 Results and Feedback 

 
 To come
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  Working Documents
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+ Jcm note about units and UCD : vo????-1x.html
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+ Jcm note about units and UCD : ????
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+ 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
  More documentation 
 
 see article at : votable-1x.html
  check units in VOSpec, SpecView? 
 

 Interactions with other WG efforts 

 
 IVOA VO Query Langage 
  

 

 Requirements from other groups 
 
 in 
 
 

 out 
 
 

 
 

 Conclusions 
[Under construction...]








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