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Telescopes in the Wind

Telescopes in the Wind. An Experiment at W.M. Keck Observatory on the Summit of Mauna Kea, Hawaii. I. Isaac Crosson. UH Hilo Physics and Astronomy Department. Effects of the Wind on a Mountain-Top Observatory. Effects of the Wind on a Mountain-Top Observatory.

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Telescopes in the Wind

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  1. Telescopes in the Wind An Experiment at W.M. Keck Observatory on the Summit of Mauna Kea, Hawaii I Isaac Crosson UH Hilo Physics and Astronomy Department

  2. Effects of the Wind on a Mountain-Top Observatory

  3. Effects of the Wind on a Mountain-Top Observatory Turbulence inside the dome deforms the primary mirror and causes poor seeing conditions

  4. Evolution of Primary Mirror Diameter Mirror Size (Meters)‏ Year

  5. Evolution of Primary Mirror Diameter Mirror Size (Meters)‏ 0.9-Meter Lick Telescope 1887 Year

  6. Evolution of Primary Mirror Diameter Mirror Size (Meters)‏ 0.9-Meter Lick Telescope 1887 10-Meter Keck Telescope 1992 Year

  7. Evolution of Primary Mirror Diameter Next-Generation Extremely Large Telescope projects (ELTs)‏ Mirror Size (Meters)‏ 0.9-Meter Lick Telescope 1887 10-Meter Keck Telescope 1992 Year

  8. Lick Observatory on Mount Hamilton was the first Permanent Mountain-Top Observatory

  9. Gemini North Telescope, Mauna Kea Hawaii

  10. Precision Instruments and Controls Gemini North Telescope, Mauna Kea Hawaii

  11. Ventilation Gates Gemini North Telescope, Mauna Kea Hawaii

  12. Extremely Large Telescope Projects

  13. Extremely Large Telescope Projects Primary Mirror Diameter 20-100 meters

  14. Thirty Meter Telescope (TMT)‏ Location to be determined Projected to be complete by 2020

  15. Predicting the Wind Effect Computer Simulation (CFD)‏ Secondary Mirror

  16. Predicting the Wind Effect Computer Simulations (CFD)‏ Wind Tunnel Experiments

  17. Predicting the Wind Effect Computer Simulations (CFD)‏ Wind Tunnel Experiments

  18. Predicting the Wind Effect Computer Simulations (CFD)‏ Wind Tunnel Experiments Current Generation Large Telescopes Golden Opportunity at the Commissioning of Gemini South

  19. Predicting the Wind Effect Computer Simulations (CFD)‏ Wind Tunnel Experiments Current Generation Large Telescopes Current Experiments at Keck II and Gemini North

  20. Details of the Keck II Experiment

  21. Details of the Keck II Experiment Mauna Kea Weather Center Archives

  22. Details of the Keck II Experiment Mauna Kea Weather Center Archives Drive Control System (DCS) Log Files

  23. Data Records from the TMT Configuration

  24. A Directory Containing Files from a single night of Keck II Operations

  25. Nightly Files Contain Column Data Headed by Engineering Codewords

  26. Decided to use an Event-Based Log File

  27. My Script synchronizes Keck data with TMT data

  28. Wind disturbance is a primary concern for next-generation extremely large telescope projects.

  29. Experiments at existing large telescopes are best, but these are costly and difficult.

  30. Wind data collected at Keck is most useful when it is cross-referenced with telescope activity logs, and external weather data.

  31. Thanks and Acknowledgements Thank you to my mentor Chris Neyman, lead observing assistant Barbara Schaefer, software guru Shui Kwok, and everyone else who helped me at Keck Observatory! Thank you to George Angeli and the other wind team engineers at the TMT Project! Thank you to Sarah Anderson, David Le Mignant, Scott Seagroves, Hilary O'bryan, my fellow interns, and everyone on the CFAO Big Island Akamai team! The Akamai Observatory Internship program is funded by the Center For Adaptive Optics, a National Science Foundation Science and Technology Center (STC), AST-9876783

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