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This is a brief ``heads-up'' write-up on the current state of the pointing reconstruction analysis, for your review prior to the meeting a week from now.

To answer these questions, H. McCallon has constructed a full-up simulation of the entire 2MASS pointing reconstruction problem along the lines summarized in the T. Chester email of 22 November 1994. In addition, T. Chester has determined the actual statistics of the number of PPM stars found in every 2MASS scan in the north (which is the lowest density, most non-uniform part of the PPM).

Gaylin Laughlin
Tue Feb 14 12:46:00 PST 1995