DX side

LgswUnitDx FoV measurement

New Hexapod positions after coma removal:

DX HEXA	-1.60	-4.18	1.18	181.5	79

We try to measure the FoV of the LGSW:

Wrt the 0 position the 3 WFS FoVs and the corresponding piezo zero positions are:

WFS	Rx	Ry	PI x	PI y
Blue	-3.5	-1	-1.7	4.0
Yellow	0	0	4.4	1.2
Red	-1	-3	-1.5	2.7

The piezo positions have been saved into:

• Jitter initial position: 20161018_223300

Finally Cal unit flux problem is fixed: the Yellow fiber was misconnected... We re-position the motors to best fit the pupils...

WFS	PM x	PM y
Blue	430	530
Yellow	280	380
Red	425	360

We try also to close the ao loop using subaps: 20160312_213700 and REC LGSW only: 20160520_011800 but the shell crashes all the times we enable the slopes transmission...

Then while taking sky flats we try the new jitter initial position:

TN	Jitter pos	JCL
20161019_004543	zero	F
20161019_004653	20161018_223300	F
20161019_004742
-	20161019_005017	T

• New Jitter initial position in jitter loop closed on sky flat: 20161019_005017

As shown in the pictures below the sky-flat is very valuable to measure the jitter inital position and to properly center the field stop in the subaperture... In principle it can be used also to match the central obstruction on the central subaperture

SX side

New Hexapod position after Coma Correction:

SX HEXA	4.42	2.75	-0.3	-45	10	0

Flux measures on NGS WFSs

~0.6" disturbance, White Light Source (WLS) 55-56 steps and we move the Z stage of the Pyr WFS to get a bigger NGS spot. 10 millimeter of Z board are ~1" in spot dimension. APD measures:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	JCL	Z stage [mm]	APD kcounts/s
20161018_222523	0.1,0.5,0.4	T	1623.42	58.9876	20161014_235200	T	42	12
20161018_222728	0.1,0.5,0.4	T	1515.2	57.3217	20161014_235200	T	47	13
20161018_222743	0.1,0.5,0.4	T	1562.91	57.292	20161014_235200	T	47	13
20161018_222844	0.2,0.5,0.4	T	1526.37	77.1823	20161014_235200	T	47	13
20161018_222859	0.2,0.5,0.4	T	1526.54	77.7343	20161014_235200	T	47	13
20161018_222929	0.25,0.5,0.4	T	1597.81	96.2808	20161014_235200	T	47	13
20161018_222942	0.25,0.5,0.4	T	1576.44	96.8694	20161014_235200	T	47	13
20161018_223013	0.05,0.5,0.4	T	1625.75	51.9799	20161014_235200	T	47	13
20161018_223025	0.05,0.5,0.4	T	1674.17	52.1886	20161014_235200	T	47	13
20161018_223054	0.15,0.5,0.4	T	1472.08	65.5364	20161014_235200	T	47	13
20161018_223112	0.15,0.5,0.4	T	1486.67	64.01	20161014_235200	T	47	13
20161018_223202	0.15,0.5,0.4	T	1357.91	62.9677	20161014_235200	T	52	14
20161018_223222	0.15,0.5,0.4	T	1380.78	64.5554	20161014_235200	T	52	14
20161018_223330	0.25,0.5,0.4	T	1446.67	90.1759	20161014_235200	T	52	14

~0.6" disturbance, White Light Source (WLS) 56 steps. Pyramid

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	JCL	Z stage [mm]	Pyr Mag
20161018_224021	1.5,0.5,0.4	T	134.489	55.1561	20161013_160000	T	41.5	15
20161018_224031	1.5,0.5,0.4	T	145.483	56.8761	20161013_160000	T	41.5	15

~0.6" disturbance, White Light Source (WLS) 56 steps. APD

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	JCL	Z stage [mm]	APD kcounts/s
20161018_225120	0.1,0.5,0.4	T	1396.49	58.7174	20161014_235200	T	41.5	15
20161018_225141	0.1,0.5,0.4	T	1407.44	58.6471	20161014_235200	T	41.5	15
20161018_225213	0.1,0.5,0.4	T	1445.54	59.5002	20161014_235200	T	46.5	15
20161018_225226	0.1,0.5,0.4	T	1426.44	58.5241	20161014_235200	T	46.5	14
20161018_225257	0.1,0.5,0.4	T	1374.41	57.4283	20161014_235200	T	51.5	16
20161018_225311	0.1,0.5,0.4	T	1361.8	59.3718	20161014_235200	T	51.5	15

The zero point is zpt= 25.4.

We cannot dark the dome for these new measures with a different WLS aperture. WLS=60 step.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	JCL	Z stage [mm]	APD kcounts/s
20161019_000759	0.1,0.5,0.4	T	991.6	46.2976	20161014_235200	T	41.5	39
20161019_000811	0.1,0.5,0.4	T	991.763	45.6126	20161014_235200	T	41.5	39
20161019_000848	0.1,0.5,0.4	T	1018.37	45.6614	20161014_235200	T	46.5	40
20161019_000900	0.1,0.5,0.4	T	962.628	45.1439	20161014_235200	T	46.5	40
20161019_000926	0.1,0.5,0.4	T	1511.9	48.764	20161014_235200	T	51.5	50
20161019_000938	0.1,0.5,0.4	T	1285.13	48.0654	20161014_235200	T	51.5	50

We cannot move the Z board over 52mm so we repeat the measures starting from 52 and going down.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20161019_001408	0.1,0.5,0.4	T	886.51	46.252	20161014_235200	-1	T	F
20161019_001422	0.1,0.5,0.4	T	981.038	44.6694	20161014_235200	-1	T	F
20161019_001433	0.1,0.5,0.4	T	1002.24	46.2966	20161014_235200	-1	T	F
20161019_001515	0.1,0.5,0.4	T	1158.11	45.3891	20161014_235200	-1	T	F
20161019_001527	0.1,0.5,0.4	T	918.71	44.3689	20161014_235200	-1	T	F
20161019_001602	0.1,0.5,0.4	T	681.306	42.4647	20161014_235200	-1	T	F
20161019_001613	0.1,0.5,0.4	T	669.312	43.2143	20161014_235200	-1	T	F
20161019_001639	0.1,0.5,0.4	T	617.674	48.9677	20161014_235200	-1	T	F
20161019_001704	0.1,0.5,0.4	T	612.004	42.7824	20161014_235200	-1	T	F
20161019_001730	0.1,0.5,0.4	T	609.845	43.0749	20161014_235200	-1	T	F
20161019_001741	0.1,0.5,0.4	T	586.443	43.0339	20161014_235200	-1	T	F
20161019_001811	0.1,0.5,0.4	T	611.543	47.595	20161014_235200	-1	T	F
20161019_001826	0.1,0.5,0.4	T	598.701	42.804	20161014_235200	-1	T	F
20161019_001851	0.1,0.5,0.4	T	604.846	57.4381	20161014_235200	-1	T	F
20161019_001904	0.1,0.5,0.4	T	596.215	49.9263	20161014_235200	-1	T	F