[obs-tap]observable quantities in observations and their UCDs

[Anita M. S. Richards]

> Here are a few remarks on your document
>
> -----------------------------------------------------------
> difference flux density/ flux density surface brightness ?
> Jy/beam is not a valid unit I guess( or is that more a simple "flux" in Jy 
> for
> a specific "object": the beam)

Thus it needs to be linked to an object giving the beam major and minor 
axes and position angle (this may be 3 parameters, or possibly just one in 
which case that  would be the major axis, minor=major and PA = 0)

thanks

Anita