Sx side

New Hexapod position after Coma Correction:

SX HEXA	4.28	2.72	-0.3	-39	-17	0

Comparison between QC and Pyramid

To test the best gain and measure the performance of the TT WFSs we use the Jitter RMS calculated as:

The Jitter RMS injected with the disturbances is 44mas for the 0.8" and 35mas for the 0.6".

Best gain test with QC.

~0.6" disturbance, White Light Source (WLS) 60 steps, ~60kcounts/s on APD, jitter Gain=0.4 (wrong value, should be very low).

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_174216	0.2,0.1,0.05	T	800.327	145.115	20161014_235200	-1	T	F	13
20161017_175013	0.2,0.5,0.4	T	882.714	83.3076	20161014_235200	-1	T	F	17
20161017_175110	0.15,0.5,0.4	T	831.402	62.2088	20161014_235200	-1	T	F	10
20161017_175231	0.1,0.5,0.4	T	894.111	54.3346	20161014_235200	-1	T	F	7

Dark in dome, again the test to find the best gain for QC.

~0.6" disturbance, White Light Source (WLS) 60 steps, ~48kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_181642	0.1,0.5,0.4	T	992.805	52.913	20161014_235200	-1	T	F	11
20161017_181949	0.15,0.5,0.4	T	995.492	60.3036	20161014_235200	-1	T	F	11
20161017_182101	0.2,0.5,0.4	T	1039.17	74.5405	20161014_235200	-1	T	F	13
20161017_182159	0.05,0.5,0.4	T	1159.78	48.9099	20161014_235200	-1	T	F	13
20161017_182227	0.15,0.5,0.4	T	978.719	57.1132	20161014_235200	-1	T	F	11
20161017_182249	0.1,0.5,0.4	T	996.098	50.9908	20161014_235200	-1	T	F	11
20161017_182309	0.2,0.5,0.4	T	1076.57	78.1044	20161014_235200	-1	T	F	13
20161017_182337	0.25,0.5,0.4	T	1235.11	113.389	20161014_235200	-1	T	F	17

~0.6" disturbance, White Light Source (WLS) 57 steps, ~18kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_184318	0.15,0.5,0.4	T	1304.81	56.805	20161014_235200	-1	T	F	13
20161017_184334	0.05,0.5,0.4	T	1485.86	50.8425	20161014_235200	-1	T	F	15
20161017_184356	0.2,0.5,0.4	T	1396.96	65.8981	20161014_235200	-1	T	F	16
20161017_184419	0.25,0.5,0.4	T	1445.44	74.5434	20161014_235200	-1	T	F	18

~0.6" disturbance, White Light Source (WLS) 54 steps, ~9kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_185320	0.1,0.5,0.4	T	1714.49	54.3247	20161014_235200	-1	T	F	16
20161017_185340	0.2,0.5,0.4	T	1778.29	63.4745	20161014_235200	-1	T	F	19
20161017_185411	0.05,0.5,0.4	T	1794.54	51.9614	20161014_235200	-1	T	F	17
20161017_185434	0.25,0.5,0.4	T	1827.49	71.7448	20161014_235200	-1	T	F	22
20161017_185459	0.15,0.5,0.4	T	1775.18	58.237	20161014_235200	-1	T	F	18

~0.6" disturbance, White Light Source (WLS) 51 steps, ~5.2kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_192811	0.1,0.5,0.4	T	2271.8	55.4604	20161014_235200	-1	T	F	25
20161017_193020	0.1,0.5,0.4	T	2259.41	57.5002	20161014_235200	-1	T	F	20
20161017_193033	0.1,0.5,0.4	T	2357.85	57.0496	20161014_235200	-1	T	F	19
20161017_193112	0.1,0.5,0.4	T	2337.37	57.3806	20161014_235200	-1	T	F	21
20161017_193134	0.1,0.5,0.4	T	2333.53	59.4587	20161014_235200	-1	T	F	21

~0.6" disturbance, White Light Source (WLS) 47 steps, ~2.4kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_194244	0.1,0.5,0.4	T	3290.64	56.3464	20161014_235200	-1	T	F	26
20161017_194255	0.1,0.5,0.4	T	3170.51	56.809	20161014_235200	-1	T	F	30
20161017_194306	0.1,0.5,0.4	T	3290.96	56.9751	20161014_235200	-1	T	F	29
20161017_194328	0.15,0.5,0.4	T	3160.82	62.3887	20161014_235200	-1	T	F	33
20161017_194339	0.15,0.5,0.4	T	3093.48	62.7971	20161014_235200	-1	T	F	35
20161017_194410	0.05,0.5,0.4	T	3021.09	53.9812	20161014_235200	-1	T	F	22
20161017_194422	0.05,0.5,0.4	T	3104.62	53.9811	20161014_235200	-1	T	F	24
20161017_194535	0.05,0.5,0.4	T	3112.59	54.6077	20161014_235200	-1	T	F	26
20161017_194559	0.1,0.5,0.4	T	3053.62	58.5774	20161014_235200	-1	T	F	33
20161017_194614	0.15,0.5,0.4	T	3156.36	65.5099	20161014_235200	-1	T	F	35

Test with Pyramid:

~0.6" disturbance, White Light Source (WLS) 47 steps, mag=16.9 (58 kph/s), jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_195603	0.5,0.5,0.4	T	230.882	54.9333	20161013_160000	-1	T	F	48
20161017_195627	0.5,0.5,0.4	T	224.752	52.4209	20161013_160000	-1	T	F	28
20161017_200316	2,0.5,0.4	T	240.365	72.4793	20161013_160000	-1	T	F	25
20161017_200656	2,0.5,0.4	T	267.594	64.7933	20161013_160000	-1	T	F	23
20161017_200726	2,0.5,0.4	T	300.762	67.1278	20161013_160000	-1	T	F	25
20161017_201155	2,0.5,0.4	T	243.062	62.5278	20161013_160000	-1	T	F	20
20161017_201211	2,0.5,0.4	T	269.062	65.8514	20161013_160000	-1	T	F	24
20161017_201448	2,0.5,0.4	T	255.379	61.4243	20161013_160000	-1	T	F	21
20161017_201503	2,0.5,0.4	T	253.006	62.1153	20161013_160000	-1	T	F	21
20161017_201522	2,0.5,0.4	T	226.714	60.5662	20161013_160000	-1	T	F	20
20161017_201542	2,0.5,0.4	T	296.949	66.1129	20161013_160000	-1	T	F	23

We pause the AO loop and put the light on the APD.

TN	FW2	APD kcounts/s
20161017_201751	-0.002045	3.9
20161017_201803	-0.002031	2.7
20161017_202410	0.000186	2.5
20161017_202424	0.000186	2.3

~0.6" disturbance, White Light Source (WLS) 45 steps, mag=17.4 (36 kph/s), jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_202843	2,0.5,0.4	T	430.829	71.4955	20161013_160000	-1	T	F	38
20161017_202859	1.5,0.5,0.4	T	513.038	63.6367	20161013_160000	-1	T	F	29
20161017_203111	1.5,0.5,0.4	T	335.161	66.0543	20161013_160000	-1	T	F	27
20161017_203129	1.5,0.5,0.4	T	317.113	64.7329	20161013_160000	-1	T	F	25

~0.6" disturbance, White Light Source (WLS) 49 steps, ~3.5kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_213018	0.15,0.5,0.4	T	2308.6	59.907	20161014_235200	-1	T	F	24
20161017_213035	0.15,0.5,0.4	T	2432.08	60.7909	20161014_235200	-1	T	F	23

We change the disturbance to compare the performance with the previous measures (http://aowiki.arcetri.astro.it/pub/ARGOSPublic/TipTiltSystem/tiptilt_perf_notes_dec15.pdf). In the previous measures the Jitter RMS is evaluated as the norm of the Tip and Tilt std instead the std of the Tip and Tilt norm.

~0.8" disturbance, White Light Source (WLS) 49 steps, ~3.4kcounts/s on APD, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_213339	0.15,0.5,0.4	T	2694.62	64.3587	20161014_235200	-1	T	F	25
20161017_213735	0.15,0.5,0.4	T	2726.08	64.3268	20161014_235200	-1	T	F	30
20161017_213745	0.15,0.5,0.4	T	2770.52	65.2374	20161014_235200	-1	T	F	27
20161017_213813	0.15,0.5,0.4	T	2700	64.2154	20161014_235200	-1	T	F	28
20161017_214030	0.1,0.5,0.4	T	2693.48	59.7068	20161014_235200	-1	T	F	26
20161017_214124	0.1,0.5,0.4	T	2634.39	60.0514	20161014_235200	-1	T	F	22
20161017_214149	0.1,0.5,0.4	T	2707.65	60.1221	20161014_235200	-1	T	F	20

~0.8" disturbance, White Light Source (WLS) 49 steps, ~3.4kcounts/s on APD, jitter Gain=0.0.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_214513	0.1,0.5,0.4	T	2613.84	59.1575	20161014_235200	-1	T	F	22
20161017_214529	0.1,0.5,0.4	T	2622.48	59.6927	20161014_235200	-1	T	F	24
20161017_214540	0.1,0.5,0.4	T	2613.04	59.7375	20161014_235200	-1	T	F	25

~0.8" disturbance, NGS open Loop, jitter Gain=0.001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_215624	0,0.5,0.4	T	3021.57	53.3821	20161014_235200	-1	T	F	36
20161017_215704	0,0.5,0.4	T	799.588	53.453	20161014_235200	-1	T	F	38
20161017_215922	0,0.5,0.4	T	3643.99	53.9141	20161014_235200	-1	T	F	36
20161017_215932	0,0.5,0.4	T	3523	53.8446	20161014_235200	-1	T	F	37

~0.8" disturbance, NGS open Loop, jitter Gain=0.0.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_215643	0,0.5,0.4	T	1371	53.5446	20161014_235200	-1	T	F	44
20161017_215654	0,0.5,0.4	T	1887.67	55.4851	20161014_235200	-1	T	F	65
20161017_215958	0,0.5,0.4	T	3708.22	53.9019	20161014_235200	-1	T	F	46
20161017_220012	0,0.5,0.4	T	3850.42	54.011	20161014_235200	-1	T	F	47
20161017_220028	0,0.5,0.4	T	3632.42	54.3543	20161014_235200	-1	T	F	50

~0.8" disturbance, NGS open Loop, jitter Gain=0.0001.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Jitter RMS [mas]
20161017_220241	0,0.5,0.4	T	3877.42	54.5017	20161014_235200	-1	T	F	42
20161017_220254	0,0.5,0.4	T	3828.76	54.3016	20161014_235200	-1	T	F	43

We try to calibrate the magnitude zero point of the APD. We remove the disturbance and then we close the AO loop using the APD and Pyramid without changing the WLS and waiting the convergences of the TS. In this condition we worked in diffraction limited condition and the spot of the NGS is ~13mas, a factor 10 smaller then the dimension of the dip between the APDs of the Quad Cells. Using the APD in this condition we loose light and the Zero Point Calculation under estimated. See document ADD LINK for more details.

WLS	Pyramid WFS			APD
steps	mag	Flux [ph/s]	Snapshot	Flux [cnt/s]	zpt	Snapshot
56	14.9	360k	20161017_231555	6.9k	24.6	20161017_230156
61	13.4	1.4M	20161017_231835	26k	24.6	20161017_232207

-- TommasoMazzoni - 18 Oct 2016