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Agenda (Fri., June 7) 8:00 9:00 9:05 9:15 9:20 10:30 10:45 11:30 12:00 13:00 15:00 15:15 16:15 17:00 AO UI Demonstration Introductions to AO team AOWG Chair Selection Review Agenda (make changes?) Review Planned & Potential AO Projects Break Continue Project Review Discuss Other Project Ideas Lunch (in lounge) Decide on Discussion Topics & begin Discussions Break Executive Session Addition Discussions with AO Team End Keck AO Team AO P. Wizinowich Science Ops D. Le Mignant LGS AO Dev. A. Contos Software P. Stomski Tech Support T. Saloga M. Wagner S. Hartman D. Summers Laser J. Chin New hire AO for Interfer. C. Neyman Keck AO: Future Directions P. Wizinowich & D. Le Mignant for Keck AO Team AOWG – June 7, 2002 Future Directions Performance Strehl Ratio Sky Coverage Characterization & Modeling Science Efficiency Emissivity Operations & Thruput Science Capabilities Future Directions A. B. C. D. E. F. Strehl Sky Coverage Emissivity & Throughput Operations Science Capabilities Performance Characterization & Modeling Other Ideas? NGS Error Budget Total RMS (nm) 140 / 213 / 460 Set A / Set B @ 30° / Set C @ 60° Strehl Ratio 0.48 / .33 / .03 @ H Strehl Ratio 0.53 / .36 / .03 @ H Science Inst. 35 Strehl Ratio 0.91 @ H AO Tilt (nrad) 23 / 36 / 77 Field Dep. 0/0/0 Windshake ? AO System 140 / 213 / 460 Telescope 152 Measurement 114 / 128 / 224 Segment 82 Centroid Anis. 15 / 30 / 69 Fitting 63 / 123 / 285 ACS Noise 58 Sci Inst. Align. 15 Bandwidth 36 / 113 / 282 Phasing 50 Calibration 30 Vibrations 100 Internal 20 Stacking 20 Assumptions: NGS = 2000 cnts Everything on-axis Requirement: SR = 0.79 / .64 / .08 @ H For an infinitely bright star Measurement 7 / 12 / 29 Isokinetic Ang 0 Bandwidth 0/1/1 A. Strehl Improvement 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. Interferometer: vibration reduction (FY02/03) Telescope optical performance improvements (FY03/05) K2 wavefront sensor image quality improvement (FY02/3) Interferometer: K1 real-time processor upgrade to Mercury PowerPC (FY03) K2 IR atmospheric dispersion corrector K2 visible atmospheric dispersion corrector Multiple wavefront sensor platescales Gain optimization in PRC Better reconstructors in PRC NIRC2: alignment monitoring tool (if necessary) K2 LGS: on-axis laser projection telescope K2 real-time processor upgrade to Mercury PowerPC Increase fast tip/tilt mirror stroke NGS Error Budget Total RMS (nm) 140 / 213 / 460 Strehl Ratio 0.48 / .33 / .03 @ H Strehl Ratio 0.53 / .36 / .03 @ H Telescope 152 2 3 Measurement9 6 114 / 128 / 224 Segment 82 Centroid Anis. 15 / 30 / 69 ACS Noise 58 Sci Inst. Align. 15 10 Phasing 50 Measurement 7 / 12 / 29 Calibration 30 Vibrations 1 100 Isokinetic Ang 0 Internal 20 Stacking 20 4 7 Bandwidth 8 36 / 113 / 28212 Field Dep. 0/0/0 AO Tilt (nrad) 23 / 36 / 77 AO System 140 / 213 / 460 Fitting 63 / 123 / 285 Science Inst. 5 35 Strehl Ratio 0.91 @ H 11: LGS measurement error Windshake 13 ? Bandwidth 0/1/1 B. Sky Coverage 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. K2 LGS: upgrades to AO system (FY02) K2 LGS: laser completion (FY02/3) K2 LGS: integration (FY03) Geometric based subaperture mapping in PRC (FY03) Larger subapertures Lower noise wavefront sensor CCDs Denominator free centroiding Larger guide star field for wavefront sensing K1 LGS: laser installation K1 LGS: upgrades to AO system LGS Upgrades Tip/tilt sensor Low bandwidth wavefront sensor Sodium rejection Wavefront sensor & pupil relay tracking Acquisition camera range 3rd field steering mirror Uplink tip/tilt to laser See KAON 216 for details & schedule Laser System Completion Diagnostics & Calibrations Polarization; diagnostic cameras (filters & shutters); Power in the Bucket; Pointing & Centering; interfaces (pressures, power) Operations Startup & shutdown guis; verify alarm handlers; maintenance schedules; flexure impact; stability Optical Alignment Laser table; procedures Safety Aircraft: mosaic radar & wide field camera systems Laser traffic control system testing C. Emissivity & Throughput 24. Enclosure modifications to support cleanliness & lower temperatures (FY02/3) 25. Interferometer: image rotator mirror coatings (FY02/3) 26. Interferometer: cold body in reflection off IR transmissive dichroic 27. Improve image rotator alignment 28. Measure current throughput & improve coatings D. Operations 29. Interferometer: wavefront controller upgrade on K1 & K2 (FY02) 30. Interferometer: user interface reliability fix (FY02) 31. Interferometer: automation (FY02/3) 32. AO response to rotator slews (FY02/3) 33. Observing Assistant & Support Astronomer training (FY02/3) 34. New AO operations software (FY03/4) 35. UPS for AO VME crates (FY02) 36. K2 LGS: aircraft safety systems for laser (FY02/3) 37. K2 LGS: space command interface (if needed) E. Science Capability 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 49. 50. NIRC2: spectroscopy commissioning (FY02) NIRC2: coronagraphy commissioning (FY02/3) NIRC2: calibration lamps (FY03) NIRC2: quicklook data reduction pipeline K2 field steering mirror upgrade (for NIRC2 spectroscopy) (FY02) K2 LGS: AO engineering science verification (FY03) K2 LGS: queue scheduling OSIRIS: design support (FY02/4) OSIRIS: fold mirror (FY04) OSIRIS: commissioning support (FY04/5) OSIRIS: SHARC on K1 Interferometer: ZnSe IR transmissive dichroics for 10 um imager (FY05) Interferometer: field selector mirrors for imager (FY05) E. Science Capability 51. OHANA: fiber input test (FY03) 52. OHANA: fiber injection module implementation on K1&2 53. Improved performance on extragalactic targets 54. Acquisition camera upgrade to a visible science camera 55. Electronic logging of science observations (FY02?) 56. IR wavefront sensor 57. Differential tracking for field steering mirrors 58. Next generation Keck AO CoDR 59. Next generation Keck AO PDR, CDR, fab, I&T & commissioning PSF reconstruction F. Performance Characterization & Modeling 60. Atmospheric characterization tool (FY02) 61. CfAO postdoc performance modeling & characterization effort (FY03/4) 62. Additional AO characterization & modeling efforts Other Ideas CfAO ExAO proposal Development Environment Postdocs, students, sabbaticals, … ???