The TPTT (Wayne Dahl, Tom Nordin, Bob Goodrich, Jim Beletic, Rich and Kyle) formulated the following plan yesterday to address K1 & K2 telescope pointing problems:
Wayne Dahl (WD) has accepted the role of TPTT coordinator. WD is now accountable for overall orchestration of TPTT efforts (assumes Kyle's past role (from 6/2/03 to 6/23/03) as the TPTT lead).
WD will review K2 pointing performance and will present a troubleshooting proposal at the next TPTT meeting @ 8:30 AM on Monday, 6/30/03 (Mauna Kea conference room).
I looked at K2 PRM data and there is nothing there that accuses the encoders of being the problem. The results are repeatable between runs (taken right after each other) and between the 2 Az encoders.

Everyone is invited to bring an idea on what could be the cause of the problem(s) for the next meeting.
WD to modify T-Point analysis utility and/or telescope pointing software to clarify the polarity of the pointing coefficients to future users.
This will be addressed upon Hilton Lewis' return.
WD and Bob Goodrich (BG) to develop a proposal for a pointing performance metric. This pointing metric is intended to be used to objectively monitor the pointing performance of the telescopes as a function of time.
Other matters proposed as topics at the next TPTT meeting:

Current Action Items:
The TPTT identified some significant non-repeatability in pointing data at or near the zenith. Tom Nordin (TN) will plan and schedule a systematic check of all telescope optic and instrument mounting interfaces (e.g., secondary KMs, SSC mount, tertiary mirror support system, tertiary KMs, etc...) in the coming week and report his results at a future TPTT meeting.
K1 elevation PRM/encoder calibration data will be evaluated by WD. The TPTT will review the results prior to planning a troubleshooting effort to improve elevation encoder performance.
Macy Wessel (MW) & Kyle will complete as-built documentation for the K1 azimuth encoder mechanical system (includes removal, installation and alignment procedures and drawings).
MW & Kyle will propose a maintenance plan for the K1 azimuth encoder mechanical system.