1. LBT Q3 2008 Engineering and Software Review ENGG Engineering General

2. 10/20/2008 LBT Q3 2008 Engineering and Software Review Highlights (Q3/2008) Installed LFBG cable chain and commissioned LFBG rotator and cable chain. The rotator and cable chain has performed very well. Installed LFBG cable chain and commissioned LFBG rotator and cable chain. The rotator and cable chain has performed very well. Completed all Engineering goals necessary to get LUCIFER on the sky Completed all Engineering goals necessary to get LUCIFER on the sky Installed and tested RFBG rotator Installed and tested RFBG rotator Identified and corrected (a/the?) SX PMC positioning problem Identified and corrected (a/the?) SX PMC positioning problem The “super hardpoint” conceptual design is now nearly complete The “super hardpoint” conceptual design is now nearly complete Fixed MCS elevation strip encoder issue Fixed MCS elevation strip encoder issue Found and corrected the source of the M3 rotation axis stiction Found and corrected the source of the M3 rotation axis stiction Replaced damaged SX M3 motor Replaced damaged SX M3 motor Integrated DX M3 mirror cell into corresponding M3 unit Integrated DX M3 mirror cell into corresponding M3 unit Finalized the design and ordered the DG rotator ISS Finalized the design and ordered the DG rotator ISS Specified and ordered the DG rotator encoder tapes Specified and ordered the DG rotator encoder tapes Fabricated and installed –Z weight stations Fabricated and installed –Z weight stations Provided support for a successful SX aluminizing Provided support for a successful SX aluminizing

3. 10/20/2008 LBT Q3 2008 Engineering and Software Review Progress (Q3/2008) Hire open EE position (not yet) Hire open EE position (not yet) PMCD review (postponed) PMCD review (postponed) Test RFBG rotator √ Test RFBG rotator √ Support aluminizing √ Support aluminizing √ Commission LFBG rotator & cable chain √ (open action items) Commission LFBG rotator & cable chain √ (open action items) Diagnose SX mirror cell motion problems √ Diagnose SX mirror cell motion problems √ M3 M3 Install unit #2 cell √ Install unit #2 cell √ Replace unit #1 motor √ Replace unit #1 motor √ Reinstall and align unit #1 √ Reinstall and align unit #1 √ Support LUCIFER installation √ Support LUCIFER installation √ Install –Z counterweights √ Install –Z counterweights √ DYB punch list √ DYB punch list √

4. 10/20/2008 LBT Q3 2008 Engineering and Software Review Open Issues Technical Technical Gregorian vibration Gregorian vibration System reliability needs improvement System reliability needs improvement HBS HBS MCS MCS M3 M3 Schedule Schedule So many subsystems / so little commissioning time So many subsystems / so little commissioning time Telescope schedule increasingly competitive Telescope schedule increasingly competitive DG rotator schedule has no contingency DG rotator schedule has no contingency Financial Financial Instrument rotators have eaten this year’s budget Instrument rotators have eaten this year’s budget `09 budget allocation lower than requested `09 budget allocation lower than requested Resource Resource Group work load high Group work load high Open EE position Open EE position Resources may be insufficient to commission all subsystems on the current timetable Resources may be insufficient to commission all subsystems on the current timetable

5. 10/20/2008 LBT Q3 2008 Engineering and Software Review Planning (Q4/2008) Complete bulk of DG rotator and cable chain design (some details will spill over into Q1/09) Complete bulk of DG rotator and cable chain design (some details will spill over into Q1/09) Address all LFBG rotator and cable chain commissioning action items Address all LFBG rotator and cable chain commissioning action items Complete “super hardpoint” conceptual design Complete “super hardpoint” conceptual design Hold a review of the “super hardpoint” design Hold a review of the “super hardpoint” design Build a prototype “super hardpoint” with mechanics and electronics Build a prototype “super hardpoint” with mechanics and electronics PMCD review (handover late in Q4/08 or early Q1/09) PMCD review (handover late in Q4/08 or early Q1/09) Install and tune all HBS capillaries Install and tune all HBS capillaries Implement a new vibration monitoring system Implement a new vibration monitoring system Understand the source of the Gregorian vibration Understand the source of the Gregorian vibration Develop and test a prototype of a new shutter latching mechanism Develop and test a prototype of a new shutter latching mechanism Make several MCS - DSP/FPGA improvements (continue into Q1/09) Make several MCS - DSP/FPGA improvements (continue into Q1/09) DYB documentation review DYB documentation review DYB handover (depends on ETS resources) DYB handover (depends on ETS resources) Fill open EE position Fill open EE position