Apologies if this is already covered, I missed some emails..
My biggest problem is "pos.wcs" which generalizes poorly.
Seems to me that naxis and naxes are
properties of the pixels, and indeed of the image and not of pos itself.
What if you have an x,y,time cube? I would argue it would be
obs.image.naxes
obs.image.naxis
or perhaps
obs.image.wcs.naxes
obs.image.wcs.naxis
(or array.naxes or whatever the top level thing, but not pos)
but not
pos.naxes = 2
time.naxes = 1
pos.naxis = 512 512
time.naxis = 30
Similarly, the other wcs.* should probably be image.wcs.* not pos.wcs.* ?
I agree with others comments about instr.scale;
Should be
image.wcs.scale
I am generally confused about what is in "wcs" and what is not: "pos.frame" not part of wcs, but "pos.wcs.naxes" is?
> > meta.bullshit
> meta.unknown?
I think the first is a more accurate description; how about
meta.badly_defined
or
meta.obscure
:-)