Download Future Directions

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, …
 ???