Small addendum

[Doug Tody]

My last comment applies here as well.  The model we are looking at now
is for characterizing generic datasets.  Details such as slightly nonsquare
pixels are probably best dealt with in the WCS.  Information about
quantities such as airmass, seeing, etc., are specific to a particular
class of instrument (ground based) and, while we might want to include
such information, this is probably third or fourth level metadata.  At the
level we are looking at now all we need for e.g., seeing, is a measure of
the spatial resolution of the physical signal being sampled.


On Thu, 6 Nov 2003, Andreas Wicenec wrote:

> Hi again,
> 
> the bin size should allow for non-square bins as well, since there a plenty
> of detectors out there which don't have square pixels.
> 
> I suggest to use DM.coverage.flux as a prefix to the last table entries and 
> certainly the airmass does not belong to this group either, but may be added 
> in a group DM.coverage.ambient or something equivalent.
> 
> Andreas