Agenda (Fri., June 7)8:00 AO UI Demonstration9:00 Introductions to AO team9:05 AOWG Chair Selection9:15 Review Agenda (make changes?)9:20 Review Planned & Potential AO Projects10:30 Break10:45 Continue Project Review11:30 Discuss Other Project Ideas12:00 Lunch (in lounge)13:00 Decide on Discussion Topics & begin Discussions15:00 Break15:15 Executive Session16:15 Addition Discussions with AO Team17:00 End

Keck AO TeamAO

P. Wizinowich

AO for Interfer.C. Neyman

Software P. Stomski

LGS AO Dev.A. Contos

Science OpsD. Le Mignant

Tech SupportT. Saloga

M. Wagner

S. HartmanD. Summers

LaserJ. Chin

New hire

P. Wizinowich & D. Le Mignantfor Keck AO Team

AOWG – June 7, 2002

Keck AO: Future Directions

Future Directions

Strehl Ratio

SkyCoverage

Emissivity& Thruput

ScienceCapabilities

Operations

Characterization& Modeling

Performance Science Efficiency

Future DirectionsA. StrehlB. Sky CoverageC. Emissivity & ThroughputD. OperationsE. Science CapabilitiesF. Performance Characterization &

Modeling Other Ideas?

NGS Error Budget

Strehl Ratio0.48 / .33 / .03 @ H

Strehl Ratio

0.91 @ H

Strehl Ratio0.53 / .36 / .03 @ H

Total RMS (nm)140 / 213 / 460

AO System140 / 213 / 460

Telescope152

Science Inst.35

Field Dep.0 / 0 / 0

Measurement114 / 128 / 224

Fitting 63 / 123 / 285

Bandwidth 36 / 113 / 282

Calibration 30

Internal 20

AO Tilt (nrad)23 / 36 / 77

Segment82

ACS Noise58

Phasing50

Vibrations100

Stacking20

Centroid Anis.15 / 30 / 69

Sci Inst. Align.15

Measurement 7 / 12 / 29

Isokinetic Ang 0

Bandwidth 0 / 1 / 1

Assumptions:NGS = 2000 cntsEverything on-axis

Set A / Set B @ 30° / Set C @ 60°

Requirement:SR = 0.79 / .64 / .08 @ HFor an infinitely bright star

Windshake ?

A. Strehl Improvement1. Interferometer: vibration reduction (FY02/03)2. Telescope optical performance improvements (FY03/05) 3. K2 wavefront sensor image quality improvement (FY02/3)4. Interferometer: K1 real-time processor upgrade to Mercury

PowerPC (FY03)5. K2 IR atmospheric dispersion corrector6. K2 visible atmospheric dispersion corrector7. Multiple wavefront sensor platescales8. Gain optimization in PRC9. Better reconstructors in PRC10.NIRC2: alignment monitoring tool (if necessary)11.K2 LGS: on-axis laser projection telescope12.K2 real-time processor upgrade to Mercury PowerPC13.Increase fast tip/tilt mirror stroke

NGS Error Budget

Strehl Ratio0.48 / .33 / .03 @ H

Strehl Ratio

0.91 @ H

Strehl Ratio0.53 / .36 / .03 @ H

Total RMS (nm)140 / 213 / 460

AO System140 / 213 / 460

Telescope152

Science Inst.35

Field Dep.0 / 0 / 0

Measurement114 / 128 / 224

Fitting 63 / 123 / 285

Bandwidth 36 / 113 / 282

Calibration 30

Internal 20

AO Tilt (nrad)23 / 36 / 77

Segment82

ACS Noise58

Phasing50

Vibrations100

Stacking20

Centroid Anis.15 / 30 / 69

Sci Inst. Align.15

Measurement 7 / 12 / 29

Isokinetic Ang 0

Bandwidth 0 / 1 / 1

1

2

4

3

5

6

7

9

8

10

12

11: LGS measure-ment error

Windshake ?13

B. Sky Coverage14.K2 LGS: upgrades to AO system (FY02)15.K2 LGS: laser completion (FY02/3)16.K2 LGS: integration (FY03)17.Geometric based subaperture mapping in PRC

(FY03)18.Larger subapertures19.Lower noise wavefront sensor CCDs20.Denominator free centroiding21.Larger guide star field for wavefront sensing22.K1 LGS: laser installation23.K1 LGS: upgrades to AO system

LGS Upgrad

es 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 alignment28.Measure current throughput & improve

coatings

D. Operations29.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 Capability38.NIRC2: spectroscopy commissioning (FY02)39.NIRC2: coronagraphy commissioning (FY02/3)40.NIRC2: calibration lamps (FY03)41.NIRC2: quicklook data reduction pipeline 42.K2 field steering mirror upgrade (for NIRC2 spectroscopy) (FY02)43.K2 LGS: AO engineering science verification (FY03)44.K2 LGS: queue scheduling45.OSIRIS: design support (FY02/4)46.OSIRIS: fold mirror (FY04)47.OSIRIS: commissioning support (FY04/5)48.OSIRIS: SHARC on K149.Interferometer: ZnSe IR transmissive dichroics for 10 um imager

(FY05)50.Interferometer: field selector mirrors for imager (FY05)

E. Science Capability51.OHANA: fiber input test (FY03)52.OHANA: fiber injection module implementation on K1&253.Improved performance on extragalactic targets54.Acquisition camera upgrade to a visible science camera55.Electronic logging of science observations (FY02?)56.IR wavefront sensor57.Differential tracking for field steering mirrors58.Next generation Keck AO CoDR59.Next generation Keck AO PDR, CDR, fab, I&T &

commissioning PSF reconstruction

F. Performance Characterization &

Modeling60.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, …

???