We are continuing the acceptance and development tests on the telescope begun in July, 2000. The work planned for our trip scheduled for late March, 2001, had to do mainly with putting the secondary mirror into the telescope and testing the telescope as a Cassegrain system, with secondary emphasis on continuing to develop the telescope control system. This work was still contingent on getting the secondary back from Torus Optics in time to do the work in March. Torus failed to deliver the mirror in time for this trip, so we concentrated on developing the control system instead. During February and early March, we did work in Nashville on the spectrograph and to prepare for a successful trip in March. Eaton and Williamson traveled to Arizona on 24-29 March.

The work planned fell into four categories as follows:

1. MECHANICAL ADJUSTMENTS and augmentation of the telescope structure.
1. Decide on any modifications to the base skirt needed to keep it from rubbing and make them. (We deferred this task indefinitely, since it didn't seem like a serious problem.)
2. Straignten up wiring on top of telescope, run wire to the camera in the instrument head, plug up holes through which mice can get into the electronics boxes,finish armoring control/instrumentation cables, and put airducts on top of telescope and to the walls. (We accomplished most of this work, including straightening up the wiring, running the ducts from the pump room to the air sucker, making up the duct to the north wall, and adding most of the ducts to the top of the telescope. We did not have a proper feed-through for the north wall, and we decided to put auxilliary fans on the ducts from the back of the tube to increase flow past the primary mirror.)
2. ELECTRICAL WIRING.
1. Finish setting up the optical sensor for protecting the telescope from having the enclosure hit it and wire that sensor into the roof controller. (We did this task, hooking the sensor into the main telescope control system so we could read its position for tests.)
3. Work on MIRRORS.
1. Put secondary mirror and instrument head into the telescope. (This was contingent on getting the secondary back from Torus Optics, which we could not do.)
2. Colimate the Cassegrain system. (ditto)
3. Take images with the full Cassegrain system to assess quality of the complete optical system. (ditto)
4. Take images to use in developing the guiding strategy. (This was also contingent on having the secondary mirror, which Torus Optics did not deliver.)
4. Work on the DRIVES and CONTROL SYSTEM.
1. Run further tests to verify new routines for a) moving the secondary mirror and instrument head, b) turning on the oil pump and reading its status, and reading the status of the enclosure before a slew and responding to it. (We made and tested all of these modifications of the control system. We also modified the executive program that decides what star to observe so as to run through a list of stars, acquire them automatically, and track them for five minutes while recording statistics about the quality of tracking. These tests, which we ran on three nights, worked flawlessly--for a span of about four hours on each night. These tests went so well that we should be able to start running the telescope remotely, if not automatically, once the controls for the roof of the enclosure are finished. We also discussed with Lou Boyd the details of automating the roof and a rough schedule for doing it.)
2. Run acquisition/tracking tests with secondary mirror in place. (Deferred; no secondary mirror.)
3. Construct a mount model with the secondary mirror, and verify it by finding stars.(Deferred; no secondary mirror.)
4. Run mechanical focusing tests with secondary mirror. (Deferred; no secondary mirror.)
5. Run further acceptance tests for motions in instrument head. (We ran these tests in Nashville before going to the observatory.)