Tech Note 102 now includes analysis of astrometry

[Michael Richmond <richmond@stupendous.cis.rit.edu>]

  Tech Note 102 is still slowly growing as I continue to poke at
the "patch" dataset.  My latest addition is a brief comparison
of its mean positions to Tycho-2 and to the Henden sequences.
No big surprises, I guess: the mean TASS positions are good
to around 0.5 arcsecond for bright sources, but only a couple
of arcseconds for faint sources.

  For the details, see

       http://stupendous.rit.edu/tass/technotes/tn0102.html

As always, comments and suggestions are welcome.  I think that
the one piece of work remaining (in my own mind, anyway) is to
see if there might be significant photometric differences between 
the three cameras used in collecting the data.

                                      Michael Richmond