UCD em.line usage : poll

[Louys Mireille]

Hello Semantics afficionados,

As you may have heard , there is an on-going effort for updating - 
extending the IVOA UCD thesaurus in order to cover Solar data as well as 
Planetary data.

We are currently revisiting the*em.line *tree structure to see how to 
manage the inclusion of new atoms/moleculenames.

I am asking here data providers , whether they could fill in  this 
little poll , below .

1- How many different UCD do you generally use with the /*em.line.'name' 
*/( like em.line.CO, f.i. ) structure do you use?

  * more than 50
  * more than 20
  * more than 10
  * less than 10

2- Could you provide us with a list of the 10 to 15 most used em.line.* 
UCD that appear in your data collections ?


This poll is done in order to get an idea about the pratical usage of 
the 'em.line.* ' tags  .
Thank you for your answers ,
Best wishes , Mireille Louys.


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