To: Edgar Castro

From: Jon Hagen

Date: Sept. 29, 2000

Subject: Report for September, 2000

Most of this month was spent with the Vertex pointing system software and the Siemens program development system. Printed listings were made of the current version of the PLC code, symbol table, cross reference table, etc. A flow-chart is being made for the PLC code. All of this is being done in order that we have on-site capability to maintain and modify the pointing system.

About 3 days were spent preparing a talk about the Observatory for the plenary session of the IEEE International Ultrasonics Symposium to be held at the end of October in San Juan.