20190208 DX 4D alignment and Flat Measurement.

04:22 Start 4D aligment
  • try to get central obsuration to the center of the 4D image pupil by moving M3
  • Hopefully this will remove the coma that is "built" into the 4D flats. This coma is seen on the FLAO Pyramid WFS

05:09 Moving M3 in Tip
M3 M2 Outer Center Inner Center
-464 -70 0.428 -4.6033 -1.2551 493 90 2.224 2.404 2.262 2.413
-240 -70 1.0277 -3.7948 -1.2558 338 201 2.226 2.334 2.272 2.340
-224 -70 1.0694 -3.7421 -1.2540 328 208 2.226 2.321 2.264 2.328
-208 -70 1.1094 -3.6846 -1.2566 317 217 2.224 2.319 2.255 2.323
-192 -70 1.1481 -3.6211 -1.2551 304 224 2.233 2.313 2.233 2.313
-176 -70 1.1938 -3.5633 -1.2551 293 232 2.231 2.306 2.262 2.308
112 -70 1.8659 -2.5273 -1.2464 95 365 2.230 2.214 2.266 2.215

05:09 Delta M3 in Tip
M3 M2
288 0 0.765 1.040 0 -202 140
64 0 0.170 0.231 0 -45 31

06:14 Moving M3 in Tilt
M3 M2 Outer Center Inner Center
-176 224 0.4335 -3.0697 -1.2450 199 87 2.296 2.299 2.332 2.323
-176 -54 1.1502 -3.5387 -1.2524 288 225 2.231 2.306 2.270 2.315
-176 -70 1.1938 -3.5633 -1.2551 293 232 2.231 2.306 2.262 2.308
-176 -86 1.2215 -3.5892 -1.2519 298 239 2.224 2.304 2.259 2.310
-176 -102 1.2681 -3.6139 -1.2529 304 247 2.224 2.310 2.253 2.308
-176 -118 1.3062 -3.6508 -1.2508 310 255 2.220 2.308 2.251 2.313
-176 -364 1.9291 -4.0760 -1.2521 391 375 2.160 2.302 2.189 2.308

06:14 Delta M3 in Tilt
M3 M2
0 294 -0.779 0.538 0 -98 -143
0 -64 0.156 -0.112 0 22 30
0 -64 0.156 -0.104 0 21 30
0 -64 0.174 -0.122 0 22 33
0 -294 0.779 -0.538 0 98 143

  • Outer Pupil Motion. Delta M3 Tip -294", 0", +294" from left to right:
    Tip_outer.jpg
  • Outer Pupil Motion. Delta M3 Tilt -294", 0", +294" from top to bottom:
    Tilt_outer.jpg

DX FLAO

Bin 1

08:10 Align source or pyramid
  • flat 20190207_051223/flattening_result.sav
  • 634 modes
  • Close loop with old KL_v26 36 modes recon 20190111_212646
  • 3 images (initial)

10:47 bin 1, open loop, 12 modes
  • gain 672_0.1.fits
  • dist CmdDisturb_20190208_104949.fits
  • TT 8.0 (~9 l/D)
  • intmat 105046
  • recon 105250

10:55 Bin 1, closed loop, 12 modes
  • CL Recon 105250, gain0.1.fits
  • dist 104949
  • intmat 105727
  • recon 105843

11:00 bin 1, 36 modes
  • CL recon 105843, gain0.1.fits
  • gain doug_400_2l_0.6.fits
  • dist 110230
  • intmat 110352
  • recon 110528

11:10 bin 1, 153 modes
  • CL recon 100528, gain0.1.fits
  • gain doug_400_2l_0.6.fits
  • dist 111227
  • intmat 111338
  • recon 111544

11:19 bin 1, 400 modes
  • CL recon 111544, gain0.1.fits
  • gain doug_400_2l_0.6.fits
  • dist 112216
  • intmat 112333
  • recon 112649

11:30 bin 1, test closed loop
  • 600 Hz, TT = 8v (~8 l/D)
  • recon 112649
  • no disturb
  • Optdiag 114330
  • flat 20190208_400m_600hz_1
    • apply
    • 634 modes
    • looks the same

11:46 bin 1
  • 990 Hz, TT=6.9v
  • disturb atm+0.8seeing_10000Hz.fits
  • looks like alot of vibration. Is the TT mirror working.
  • flat 20190208_400m_990Hz_1
  • optdiag 120150

12:06 bin 1
  • 600 Hz, TT=5.9v
  • disturb atm_0.8seeing_1000Hz.fits
  • optdiag 120602

12:14 Tip test by moving stages
  • command +-0.2
  • forces +0.09, -0.2
  • turn off off-loading
  • dX 0.2mm
    • command +-1.1
    • forces 0.1, -0.2
  • DX 0.6mm
    • command +-4.0
    • forces 0.11, -0.23
  • dX 1.0
    • command +-7.0
    • forces 0.15N (act 607), -0.24
  • dX 1.4
    • command +-9.3
    • forces 0.4 (act 607). -0.27
  • Open Loop, set shell, closed loop
  • dx 1.4
    • command +-9.3
    • forces 0.4 (act 607, 585) -0.27
    • back to 0 Tip, act 607, 585 are back to reasonable values

Back to 4D to check saved flats

12:42 load 20190208_400m_600hz_1.sav
  • 634 modes
  • 3 images (flat_20190208_400m_600hz_1)
  • 39 nm rms (yes, better than the 4D flat below)

12:50 load flat 20190206_102708/flattening_result.sav
  • 634 modes
  • 3 images (4d_flat_102708)
  • 66 nm rms

-- DougMiller - 08 Feb 2019
I Attachment Action Size Date Who Comment
Tilt_outer.jpgjpg Tilt_outer.jpg manage 320 K 11 Feb 2019 - 22:02 DougMiller Outer Pupil Motion. Delta M3 Tilt -294", 0", +294+ from top to bottom
Tip_outer.jpgjpg Tip_outer.jpg manage 317 K 11 Feb 2019 - 22:02 DougMiller Outer Pupil Motion. Delta M3 Tip -294", 0", +294+ from left to right
Topic revision: r5 - 11 Feb 2019, DougMiller
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