Unified Content Descriptor Controlled Vocabulary RFC

This document will act as RFC centre for the UCD - Controlled Vocabulary Proposed Recommendation.

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Comments

AndreaPreiteMartinez : suggested changes to the list:

1. suppress instr.filter.transm, replaced by phys.transmission;instr.filter

2. change instr.filter into a secondary word (flag S)

AlbertoMicol - 16 Sep 2005:

3. Suppress em.wl.central

Rationale:

em.wl.central exists, em.energy.central and em.freq.central don't. Wouldn't be better to remove it and use instead em.wl;stat.mean?

4. em.wl.effective

Similar, but not identical, to em.wl.central. Maybe effective and central should be added to (e.g.) stat?

PierreDidelon - 19 Sep 2005

somethings seem to miss in UCD1+, even compared to UCD1. for example

5. considering polarization in UCD1 we found POL_FLUX_LCP, POL_FLUX_LINEAR, POL_FLUX_RCP corresponding in UCD1+ (http://vizier.u-strasbg.fr/UCD/ucd1-ucd1p.txt) to ... phot.fluxDens even not a polarization, phys.polarization at least would be preferable. And it would be nice to introduce something more specific like phys.polarization.linear and phys.polarization.circular.

Similarly for POL_STOKES_I, POL_STOKES_Q, POL_STOKES_U, POL_STOKES_V only phys.polarization.stokes exists, it may be worthwhile introducing phys.polarization.stokes.I...

and even for new word introduced the tree is not enough developped

6. pos.bodyrc need to be extend to pos.bodyrc.lat, pos.bodyrc.lon, pos.bodyrc.alt and pos.bodyrc.dist