LgswUnitDx calibrations

FoV measurement

DX HEXA	-3.94	-2.36	0.73	-174	-384

We try to measure the LGSW FoV, we close the loop w/ 2015/07 rec but today it does not work.

• Pos0: hexapod is centered in the best position to match the 3 FoVs:

• Pos1: we moved the hexapod to center the blue FoV: Rx= -178; Ry= -384, PI jitter= [0.00074; 0.00324] rad

• Pos2: hexapod move to match the RED FoV: Rx= -174; Ry= -388, PI jitter @ [0.00047; 0.00368] rad

• Pos3: hexapod on YELLOW FoV: Rx= -172; Ry= -382; PI jitter @ [0.007; -0.002] rad.

But PI yellow is too far from 0 so we pan the yellow pupil subaps by [0, 3]px and then we save the set to subaps: 20161205_194700.

Now PI Yellow is @ [0.00091; 0.00042] rad.

• Jitter initial position saved as: 20161205_194700

Now we optimize the pupil position looking at the illumination pattern:

Pupil	PMX	PMY
Blue	430	500
Yellow	280	355
Red	395	305

Then we go back to the individual centers:

• Pos 1/A: Rx= -178; Ry= -384: PI Blue @ [0.00060; 0.00395] rad. We decide to pan also Blue pupil by [0, +2]px. After this the subaperture set is: 20161205_200400 and the PI Blue @ [-0.00172; 0.00150] rad.

• Pos 2/A: Rx= -174; Ry= -388: PI Red @ [0.00036; 0.00370] rad. We move the Red pupil by [-1; +1]px. Then we save the subaperture set: 20161205_201600. PI Red @ [-0.00065; 0.00146] rad.

• Pos 3/A: Rx= -172; Ry= -382: PI Yellow @ [0.00071; 0.00056]rad. OK.

Jitter initial position: 201612105_202200.

After this we close the loop w/ 2016/05 rec.

DX HEXA	-3.94	-2.36	0.735	-175	-368

We can close on 36 modes, we acquire some snapshots:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20161205_203259	0.2,0.1, 0	T	203.821	24.0598	20160516_092300	-1	F	F
20161205_204214	0.3,0.2, 0	F	588.532	23.9265	20160516_092300	-1	T	F

14:00: we realized we did an error in calibrating the FoV centers: we must acquire the pupil position at each FoV center not at the "best out of 3" centers...

• Pos 1/B: BLUE PM @ [425; 500], PI @ [-1.09; 1.33] mrad
• Pos 2/B: RED PM @ [410; 310], PI @ [-0.72; 2.14] mrad
• Pos 3/B: YELLOW PM @ [280; 345], PI @ [1.06; 0.01] mrad

Jitter initial position saved as: 20161205_210900, good for night time operations.

We save also pupil target tag, independently for the 3 channels (at each FoV center): 20161205_211147 (yellow), 20161205_211420 (blue), 20161205_211454 (red).

Then we go back to the hexapod center coordinates, the pupil positions seems still fine looking at the illumination pattern.

Pupil	PIX	PIY
Blue	2.40	-0.38
Yellow	-1.18	1.62
Red	-3.38	5.04

We save the jitter initial position as 20161205_212437, that is good for daytime operations.

LgswUnitDx DXAoLoopCalibrations

We restore modal history for 10 modes from 2016/05:

MH	LGSW IM	LGSW REC
20160516_080010	20161205_204341	-

But the modal amplitude is too big we are saturating the sensor. We divide it by 2 and repeat.

New modal amplitude for 10 modes: 20161205_213200, modal amplitude for 150 modes: 20161205_214300 and modal histories: 20161205_213010, _213050, _213150.

We re-position pupil motors by hand, looking at illumination pattern:

Pupil	PMX	PMY
Blue	420	515
Yellow	280	350
Red	420	310

PI initial position set as 20161205_212437.

We start acquiring new IMs:

MH	LGSW IM	LGSW REC
20160516_213010	20161205_213527	20161205_213900
20160516_213050	20161205_214929	20161205_214800
20160516_213150	20161205_215041	-

They seem quite bad, we try to acquire a new IM w/o running the CL:

MH	LGSW IM	LGSW REC
20160516_213150	20161205_215315	20161205_215400

It looks much better:

We build a Combined REC LGSW only: 20161205_215600 and we test in in CL (we realize later we are running at 500 Hz):

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20161205_215925	0.5,0.4,0.3	T	171.547	29.0405	20161205_215600	-1	F	F	no dist
20161205_220005	0.5,0.5,0.5	T	169.706	31.4141	20161205_215600	-1	F	F
20161205_220028	0.5,0.5,0.5	T	162.032	31.478	20161205_215600	-1	F	F
20161205_220146	0.5,0.5,0.5	T	171.127	41.0832	20161205_215600	-1	F	F	dist= 0.8"
20161205_220205	0.5,0.5,0.5	T	170.464	40.8615	20161205_215600	-1	F	F
20161205_220224	0.5,0.5,0.5	T	167.619	40.7466	20161205_215600	-1	F	F
20161205_220726	0.5,0.5,0.5	T	168.944	53.3336	20161205_215600	-1	F	F	dist= 1.2"
20161205_220752	0.5,0.5,0.5	T	173.373	53.0889	20161205_215600	-1	F	F
20161205_220821	0.5,0.5,0.5	T	167.337	53.3403	20161205_215600	-1	F	F
20161205_221056	0.5,0.5,0.5	T	163.572	34.788	20161205_215600	-1	F	F	dist= 0.52"
20161205_221129	0.5,0.5,0.5	T	159.465	34.8484	20161205_215600	-1	F	F
20161205_221157	0.5,0.5,0.5	T	163.247	34.5221	20161205_215600	-1	F	F

Back to 1 kHz operation:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20161205_221622	0.5,0.5,0.5	T	114.115	57.952	20161205_215600	-1	F	F	dist= 0.52"
20161205_221818	0.5,0.5,0.5	T	117.323	62.9583	20161205_215600	-1	F	F	dist= 0.8"
20161205_222019	0.5,0.5,0.5	T	127.931	72.5675	20161205_215600	-1	F	F	dist= 1.2"
20161205_221436	0.5,0.5,0.5	T	123.496	53.0062	20161205_215600	-1	F	F
20161205_221509	0.5,0.5,0.5	T	118.352	53.0865	20161205_215600	-1	F	F
20161205_221641	0.5,0.5,0.5	T	109.071	56.5576	20161205_215600	-1	F	F
20161205_221708	0.5,0.5,0.5	T	120.127	57.5131	20161205_215600	-1	F	F
20161205_221837	0.5,0.5,0.5	T	117.448	62.1882	20161205_215600	-1	F	F
20161205_221859	0.5,0.5,0.5	T	120.782	62.514	20161205_215600	-1	F	F
20161205_222041	0.5,0.5,0.5	T	121.263	72.1913	20161205_215600	-1	F	F
20161205_222104	0.5,0.5,0.5	T	117.689	72.064	20161205_215600	-1	F	F
20161205_221419	0.5,0.5,0.5	T	117.739	53.9813	20161205_215600	-1	F	F	no dist

Then we also build Combo REC w/ FLAO BIN4: 20161205_222600 using FLAO REC 20150517_134926.