Monthly report for November 2001 by Christian A. Hummel:

Hummel implemented sub-array capability into the NPOI data reduction
software OYSTER. This is related to observing strategies with
the new 6-way configuration. Hummel tested the (now sub-array
aware) bias correction of the data, and implemented a photometric
beam calibration algorithm. Hummel also wrote a raw data file
navigator to assist in direct-access debugging and visualization
of NPOI raw data. The most important packet types have been implemented
in the viewer. The viewer also provides a quick overview of the
scan structure of single night NPOI raw data. Updates to the
software manual have been performed to account for the increased
complexity of the  NPOI reduction of 6-way data. 

Hummel analysed some 10 nights of data and summarized results in
a web page, which was sent to Benson and Mozurkewich for reference.