Re: final section of TN 0085 is in place

[Robert Creager <robert_creager@logicalchaos.org>]

Peter Stetson is compiling some standard stars, available at http://cadcwww.hia.nrc.ca/standards/ (click on stetson in the left frame).  I glanced quickly and found 2 completed fields at +7 dec and 1 at +6 dec.  Not sure if it's enough to do what you want though.

Also, TOM's exposures are in the fits as 100 seconds, not 60.

Stupendous Man <richmond@a188-l009.rit.edu> wrote ..
> 
>   I added a section at the end of TN 0085 which tries to
> compare the DS23 magnitudes to the standard magnitude
> scale.  Unfortunately, there just aren't enough good
> standard stars in the area covered by DS23 to yield a
> good answer.
> 
>   Remember, the Tech Note is at
> 
>       http://a188-l009.rit.edu/tass/technotes/tn0085.html
> 
> and the new sections appears at the end:
> 
>       http://a188-l009.rit.edu/tass/technotes/tn0085.html#photom_accuracy
> 
>   From the small set of standards which do appear in
> DS23, it appears that there's a small magnitude scale error
> in I-band, but not in V-band.  There are no big color terms
> in either passband.
> 
>   In order to do this last bit of calibration properly,
> we'll need to scan the celestial equator for a couple of
> nights .... or find some old (but not too old) data in which
> that has already been done.
> 
>                                  Michael Richmond