
2005.03.07 : notes related to new version of addstar

- USNO seems to work fine now:

  addstar -region 9.0 12.0 9.0 12.0 -cat usno -p USNO_RED
  addstar -region 9.0 12.0 9.0 12.0 -cat usno -p USNO_BLUE

- 2MASS seems to work as well:

  addstar -region 3.0 12.0 12.0 14.0 -cat 2mass -p 2MASS_J
  addstar -region 3.0 12.0 12.0 14.0 -cat 2mass -p 2MASS_H
  addstar -region 3.0 12.0 12.0 14.0 -cat 2mass -p 2MASS_K

- both of these are somewhat inefficient since they need to search
  through the (larger) USNO/2MASS data files for each output ptolemy
  region file.

- GSC seems to work fine now:

  addstar -region 3.0 12.0 12.0 14.0 -cat gsc 
  (photcode is not needed here since there is only one)

- images seems to work fine now

- general concerns:

  - RA 0,360 boundary is likely to have problems, especially with
    region selection
  - mosaic astrometry concepts still need to be added.

  - average magnitudes are being set incorrectly in addstar (not
    taking account of the zero-points).  I don't really want to apply
    the colors here, but I need to do something, perhaps?

    one option is to only apply the correction for the first
    measurement of an object, unlike the way astrometry works
    currently.  both of these should be updated based on
    relphot/uniphot and eqiuvalent relastro/uniastro independently
    from the addstar step.

