1. LBT Q1 2009 Engineering and Software Review ENGG Engineering General

2. 4/6/2009 LBT Q1 2009 Engineering and Software Review Highlights (Q1/2009) Left Direct Gregorian Rotator and CC Left Direct Gregorian Rotator and CC Finished Design Finished Design Finished Fabrication Finished Fabrication Installed Installed Began Testing (no major problems so far) Began Testing (no major problems so far) Concluded the PMCD project Concluded the PMCD project DYB project handover complete DYB project handover complete Hired a new Engineer: James Riedl Hired a new Engineer: James Riedl

3. 4/6/2009 LBT Q1 2009 Engineering and Software Review Progress (Q1/2009) Install the LDG instrument rotator and cable chain √ Install the LDG instrument rotator and cable chain √ Address LFBG rotator and cable chain commissioning action items (no progress) Address LFBG rotator and cable chain commissioning action items (no progress) Complete “super hardpoint” detailed design √ (mostly) Complete “super hardpoint” detailed design √ (mostly) Build a prototype “super hardpoint” Build a prototype “super hardpoint” Mechanics (some progress) Mechanics (some progress) electronics √ electronics √ Conclude PMCD project √ Conclude PMCD project √ More HBS work (some progress, more scheduled this month) More HBS work (some progress, more scheduled this month) Understand the source of the Gregorian vibration (no progress) Understand the source of the Gregorian vibration (no progress) Install and test new shutter latching mechanism (no progress) Install and test new shutter latching mechanism (no progress) MCS testing and controls software upgrades √ MCS testing and controls software upgrades √ Review DYB documentation √ Review DYB documentation √ DYB handover √ DYB handover √ Fill open EE position √ Fill open EE position √ Prepare for a new baby √ (mostly) Prepare for a new baby √ (mostly)

4. 4/6/2009 LBT Q1 2009 Engineering and Software Review Open Issues Technical Technical General Telescope Reliability General Telescope Reliability Gregorian vibration Gregorian vibration PMC – hp performance PMC – hp performance HBS – reliability / performance / completeness HBS – reliability / performance / completeness M3 – reliability (some progress) M3 – reliability (some progress) MCS – much more work necessary to complete this system MCS – much more work necessary to complete this system ROT – still short on spares, but situation is improved ROT – still short on spares, but situation is improved Schedule Schedule Difficult to find time for system commissioning Difficult to find time for system commissioning Telescope schedule increasingly competitive Telescope schedule increasingly competitive Financial Financial `09 budget is tight `09 budget is tight Resource Resource Group work load high Group work load high Resources insufficient to commission subsystems on desired timetable Resources insufficient to commission subsystems on desired timetable

5. 4/6/2009 LBT Q1 2009 Engineering and Software Review Planning (Q2/2009) ROT ROT Commission LDG instrument rotator and cable chain Commission LDG instrument rotator and cable chain Install LDG instrument power, cooling and fiber Install LDG instrument power, cooling and fiber Install PEPSI spider, AGw and IRTC at LDG focal station Install PEPSI spider, AGw and IRTC at LDG focal station Commission LDG focal station Commission LDG focal station Address some of the LFBG rotator and cable chain commissioning action items Address some of the LFBG rotator and cable chain commissioning action items Begin fabrication of RFBG cable chain Begin fabrication of RFBG cable chain PMC PMC Complete “super hardpoint” prototype Complete “super hardpoint” prototype Begin “super hardpoint” production (if testing is successful) Begin “super hardpoint” production (if testing is successful) Begin work on actuator test stand upgrade Begin work on actuator test stand upgrade Design calibration reference Design calibration reference Electronics Electronics Software Software Gregorian Vibration Gregorian Vibration Collect and analyze IRTC and Accelerometer Data Collect and analyze IRTC and Accelerometer Data

6. 4/6/2009 LBT Q1 2009 Engineering and Software Review Planning (Q2/2009) MCR MCR Mirror cover rebuild review Mirror cover rebuild review M3 M3 Install DX M3 Install DX M3 Continue debug effort on SX M3 Continue debug effort on SX M3 HBS HBS Fix HBS temperature-pressure lookup table Fix HBS temperature-pressure lookup table Install and test variable-length capillary Install and test variable-length capillary Fix pump #4 intake Fix pump #4 intake Change PLC code to eliminate many of the unnecessary errors Change PLC code to eliminate many of the unnecessary errors Get HBS telemetry working through MCSPU Get HBS telemetry working through MCSPU Shutter Latches Shutter Latches Install and test new prototype latch mechanism Install and test new prototype latch mechanism Staff Staff Hire an additional engineer Hire an additional engineer