If it's just a case of changing the units in the table to be (angular size)^2 then I can do that (although it's not entirely clear how we write that unit in code).

The algorithms will produce measurements in pixels^2, which will be converted to angular units via the WCS just prior to or just after database loading. It's likely that conversion will involve an intermediate step in radians, since that's our angular unit in the rest of the codebase, but given the rest of the table in the DPDD it looks like the final units will be arcsec^2.

I've just pushed a fix for this. Can you please check I got it correct (red text means it will be removed when DPDD is accepted by change control board).

Looks great, thanks!

(I only looked at the last commit on this branch; I assume the rest will be reviewed elsewhere).

Yes, although I think there is only one commit on that branch (the base branch is dmsr-refresh).

Merged to the development branch (dmsr-refresh).