Monthly report for July 2000 by Christian A. Hummel:

The paper on the double star Zeta Orionis by Hummel et al. was
accepted by Astrophysical Journal Letters.

Hummel submitted a paper on Omicron Leonis to the Astronomical Journal.

Hummel used the new dispersion correction algorithm to re-analyze the
raw data of 6 major astrometry data sets. In the course of this, he showed 
that metrology correction were able to reduce some of the systematic
delay variations significantly.

Hummel reduced 14 nights of new NPOI data and submitted two new NPOI proposals.