...
(Digel) I think in Galactic coordinates, too, and would like to second this nomination. We are already at 34 columns, so what is a couple more? Regarding the error ellipses, we should keep the position angles (Conf_68_PosAng and Conf_95_PosAng) as degrees East of North, i.e., with respect to celestial coordinates.
(Jurgen) I think also that galactic coordinates would be good.
13. UCDs
(Jurgen) One thing that is missing at this stage are UCDs (Uniform Content Descriptors). They are normally used to uniformly identify the content of catalogue columns (see for example the CDS Vizier website). I think it would be a good idea to add such UCDs.
14. Column names
(Jurgen) It could be reasonable to change the column names to more generic names (i.e. names that are also used in many other catalogues). For example, instead of RA and DEC we may use RAJ2000 and DECJ2000 (for galactic coordinates it would be GLON and GLAT). Uncertanties are often named "e_XXXX" so instead of "Unc_Flux100" we may use "e_Flux100".
Maybe we should submit our column naming proposal to CDS or HEASARC to get their opinion about our choices. This may help to create more conventional naming conventions ...