Laser Power Test

Measured sum power:

• SX 43.256
• DX 48.631

SIDE	L1	L2	L3
DX - Field cam	15.50	18.06	18.17
DX - Calorimeter	15.59	17.06	15.63
SX - Field cam	14.71	16.48	13.48
SX - Calorimeter	14.98	16.84	13.60

• Power so far OK and stable for 5+h.
• SX difference for DX L2+L3 currrently accepted.

Pyr or QC test

9:00: we start DT operations, cal unit setup, LgswUnitSx started.

SX HEXA	3.37	0.74	-0.88	128	-200
SX BOARD	-74.31	-50.54	52.0

We first acquire a data serie w/ Pyramid Bin4 as TT, 1" disturb. We move manually Z stage to 45mm to be optimally conjugated to LGSW. We let TS to converge (faster at 45mm) then we run autogain:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_164452	2.3,0.4,0.3	T	102.983	114.868	20151212_233600	-1	T	F	MAG15
20160514_164512	2.3,0.4,0.3	T	125.281	105.203	20151212_233600	-1	T	F	skip frame>50%
20160514_164529	2.3,0.4,0.3	T	nan	42.9404	20151212_233600	-1	T	F	skip frame>50%
20160514_164547	2.3,0.4,0.3	T	nan	43.9453	20151212_233600	-1	T	F	skip frame>50%
20160514_164813	2.3,0.4,0.3	T	110.215	72.4644	20151212_233600	-1	T	F
20160514_164844	2.3,0.4,0.3	T	105.906	72.4708	20151212_233600	-1	T	F
20160514_164903	2.3,0.4,0.3	T	108.133	72.4935	20151212_233600	-1	T	F
20160514_164921	2.3,0.4,0.3	T	108.526	72.5867	20151212_233600	-1	T	F
20160514_170001	2.3,0.4,0.3	T	152.696	72.0409	20151212_233600	-1	T	F	MAG16
20160514_170018	2.3,0.4,0.3	T	169.89	74.1348	20151212_233600	-1	T	F
20160514_170037	2.3,0.4,0.3	T	261.543	78.7679	20151212_233600	-1	T	F
20160514_170056	2.3,0.4,0.3	T	183.282	77.4359	20151212_233600	-1	T	F
20160514_170327	2.3,0.4,0.3	T	370.17	78.8706	20151212_233600	-1	T	F	MAG17
20160514_170407	2.3,0.4,0.3	T	419.97	81.2282	20151212_233600	-1	T	F
20160514_170428	2.3,0.4,0.3	T	205.523	73.4653	20151212_233600	-1	T	F
20160514_170447	2.3,0.4,0.3	T	296.646	76.1698	20151212_233600	-1	T	F

Then we move to QC, also here we run first autogain (first 4 measurement have dafault gain!). The MAG15 measurements have been taken with Z stage at 52mm.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_172134	0.1,0.4,0.3	T	787.662	82.6615	20160312_032600	-1	T	F	MAG15
20160514_172154	0.1,0.4,0.3	T	830.744	82.5431	20160312_032600	-1	T	F
20160514_172217	0.1,0.4,0.3	T	803.493	82.4838	20160312_032600	-1	T	F
20160514_172235	0.1,0.4,0.3	T	1052.33	84.0957	20160312_032600	-1	T	F
20160514_172656	0.23,0.4,0.3	T	771.424	84.9124	20160312_032600	-1	T	F
20160514_172757	0.23,0.4,0.3	T	792.812	85.351	20160312_032600	-1	T	F
20160514_172820	0.23,0.4,0.3	T	779.835	84.5888	20160312_032600	-1	T	F
20160514_172840	0.23,0.4,0.3	T	767.819	84.919	20160312_032600	-1	T	F
20160514_173942	0.23,0.4,0.3	T	998.724	81.7679	20160312_032600	-1	T	F	MAG16
20160514_174014	0.23,0.4,0.3	T	1018.22	82.8469	20160312_032600	-1	T	F
20160514_174049	0.23,0.4,0.3	T	1014.92	82.779	20160312_032600	-1	T	F
20160514_174115	0.23,0.4,0.3	T	980.331	82.7622	20160312_032600	-1	T	F
20160514_174633	0.23,0.4,0.3	T	1299.61	81.8337	20160312_032600	-1	T	F	MAG17
20160514_174653	0.23,0.4,0.3	T	1240.34	81.3422	20160312_032600	-1	T	F
20160514_174712	0.23,0.4,0.3	T	1230.41	81.3812	20160312_032600	-1	T	F
20160514_174730	0.23,0.4,0.3	T	1244.69	82.138	20160312_032600	-1	T	F

We check again QC autogain with MAG17 and it give compatible results (best gain 0.2). Results of the analysis:

SX FW2 best working position

11:00: This analysis was already done in March 16 run. The best FW2 position found was -0.004. We put LUCI1 rotator at 0deg. We defocus the Z stage to 32mm equivalent to 2". We then close on QC w/o TS, we move FW2 by few steps around working position and we measure the QC overall flux:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_182012	0.2,0.4,0.3	T	707.052	49.3391	20160312_032600	-1	T	F
20160514_182231	0.2,0.4,0.3	T	731.182	51.6073	20160312_032600	-1	T	F
20160514_182322	0.2,0.4,0.3	T	709.933	49.0725	20160312_032600	-1	T	F
20160514_182523	0.2,0.4,0.3	T	718.02	47.9894	20160312_032600	-1	T	F
20160514_183031	0.2,0.4,0.3	T	780.325	51.748	20160312_032600	-1	T	F
20160514_183211	0.2,0.4,0.3	T	814.125	52.5407	20160312_032600	-1	T	F
20160514_183253	0.2,0.4,0.3	T	778.582	51.5436	20160312_032600	-1	T	F
20160514_183334	0.2,0.4,0.3	T	884.121	53.3344	20160312_032600	-1	T	F
20160514_183426	0.2,0.4,0.3	T	878.138	53.8236	20160312_032600	-1	T	F
20160514_183554	0.2,0.4,0.3	T	1182.53	73.6287	20160312_032600	-1	T	F
20160514_183703	0.2,0.4,0.3	T	713.768	48.3842	20160312_032600	-1	T	F
20160514_183810	0.2,0.4,0.3	T	671.689	48.1801	20160312_032600	-1	T	F
20160514_183925	0.2,0.4,0.3	T	691.043	47.8563	20160312_032600	-1	T	F
20160514_183956	0.2,0.4,0.3	T	733.813	48.4166	20160312_032600	-1	T	F
20160514_184039	0.2,0.4,0.3	T	703.795	49.3753	20160312_032600	-1	T	F
20160514_184131	0.2,0.4,0.3	T	855.133	99.8316	20160312_032600	-1	T	F
20160514_184212	0.2,0.4,0.3	T	975.561	170.588	20160312_032600	-1	T	F

FW2 repeatability

11:45: we also check for FW2 homing and positioning repeatability. So we close on QC w/o TS. We defocus Z stage to 32mm. We pause the NGS and home FW2. This is the reference position. Then we move FW2 to pos1 (empty) and then we home it:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_185004	0.2,0.4,0.3	T	475.667	39.0804	20160312_032600	-1	T	F	ref pos
20160514_185152	0,0.4,0.3	T	535.442	38.3322	20160312_032600	-1	T	F	1st home
20160514_185330	0,0.4,0.3	T	442.297	38.5302	20160312_032600	-1	T	F	2nd home
20160514_185455	0,0.4,0.3	T	779.024	38.2694	20160312_032600	-1	T	F	??
20160514_185533	0,0.4,0.3	T	437.338	37.9327	20160312_032600	-1	T	F	3rd home

Then we do the same for the position repeatability: we take a first reference positon and then we move back and forth FW2 between pos1 (empty) and pos0 (qc mirror):

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_185233	0,0.4,0.3	T	444.972	39.1443	20160312_032600	-1	T	F	ref pos
20160514_185614	0,0.4,0.3	T	431.375	38.4582	20160312_032600	-1	T	F
20160514_190157	0,0.4,0.3	T	448.556	38.2472	20160312_032600	-1	T	F
20160514_190353	0,0.4,0.3	T	418.004	38.0856	20160312_032600	-1	T	F

Test of acquisition of a MAG18 star

12:30: we spent time debugging the APD set decimation that is causing the APD viewer to freeze and it is blocking the NGS magnitude calculation at the beginning of the CL.

13:00: we try to test the acquisition on a MAG18 star. We increase the number of frames taken by CCD47 to 300 first and then 500 but it is always failing

• we need to adjust thresholds for NGS acquisition or to produce a new acquisition procedure able to work at MAG>17

Second FW2 positioning error measurement

15:00: we check again the repeatability of FW2 using a different approach: we close the loop on QC, we pause and move FW2 to pos1 and then back to pos0. We resume the loop and we measure the offset introduced by the FW2 positioning error on the LGSW jitter offset:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_221451	0.2,0.4,0.3	T	1061.36	58.9429	20160312_032600	-1	T	F
20160514_221543	0.2,0.4,0.3	T	945.955	53.3083	20160312_032600	-1	T	F
20160514_221642	0.2,0.4,0.3	T	984.473	58.1939	20160312_032600	-1	T	F
20160514_221728	0.2,0.4,0.3	T	975.435	59.4383	20160312_032600	-1	T	F
20160514_221816	0.2,0.4,0.3	T	940.353	61.835	20160312_032600	-1	T	F

DX Hexapod to Patrol camera calibration

15:30: we move to DX LGSW, we get back values from March 16:

DX HEXA

-5.95

-7.6

0.95

145

-20

We acquire the IM between the LGSW patrol cameras and the Hexapod correct pointing command

• DX HEXA PATCAM IM: 20160514_230551

LgswUnitDx test with July 15 reconstructors

We get back July 2015 subaps and RECs. We first check the functionality closing a loop LGSW only, we can do everything from arbitrator. We start w/o and w/ 1" disturb.

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160514_233747	0.2,0.1,0.05	T	270.657	27.8023	20150704_021200	-1	F	F	no dist
20160514_234113	0.5,0.5,0.4	T	218.38	64.1842	20150704_021200	-1	F	F
20160514_234328	0.2,0.1,0.05	T	232.268	193.373	20150704_021200	-1	F	F	0.8" dist
20160514_234349	0.5,0.5,0.4	T	193.618	66.0073	20150704_021200	-1	F	F
20160514_234408	0.5,0.5,0.4	T	176.028	64.6979	20150704_021200	-1	F	F

In snapshot 20160514_234113 the gains were too high and the system was oscillating at 90Hz.

Then we switch to QC: we preset as MAG15, Pyr as TS.

SX BOARD	-74.5	-56.5	52.8
Preset	-74.0	-56.5	52.8

• After NGS acquire the FW2 is moved to the same position of SX unit (-0.004 steps) while it should be 0.054 steps. Clicking on QC mirror button properly position the QC mirror to 0.054 steps.

• TS has not the proper REC:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160515_000410	0.7,0.4,0.3	T	485.758	39.7099	20150704_021300	-1	T	F	no dist
20160515_000506	0.7,0.4,0.3	T	440.388	38.8932	20150704_021300	-1	T	F
20160515_000807	1,0.4,0.3	T	453.17	88.0854	20150704_021300	-1	T	F	0.8" dist
20160515_000827	1,0.4,0.3	T	384.591	76.459	20150704_021300	-1	T	F
20160515_000854	1,0.4,0.3	T	413.882	84.9671	20150704_021300	-1	T	F

We also try to compare the fluxes measured by Pyramid and QC:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160515_001052	0.2,0.1,0.05	T	596.536	26.3156	20150704_021300	-1	T	F	FW1: 50-50
20160515_001155	0,0.1,0.05	T	440.568	25.7265	20150704_021300	-1	T	F	FW1: 600-1000
20160515_001239	0,0.1,0.05	T	170.022	25.8275	20150704_021300	-1	T	F	FW1: silver mirror
FW1	PyrMag	Pyr Photons	Apd Counts
50-50	14.37	600k	86k
600-1000	13.70	1.1M	-
silver mirror	-	-	208k

According to this analysis the 50/50 filter seems a T:53/R:41 filter. Transmission factor between Pyramid and APD is 5.

We move to Pyramid Bin4, we preset for MAG14 star, we are able to close the loop w/o TS:

TN	AO Gain	AO CL	TT Res. WF [nm rms]	HO Res. WF [nm rms]	AO rec	DIMM ["]	JCL	PCL	Notes
20160515_002028	1.4,0.4,0.4	T	133.923	37.9529	20150704_021500	-1	T	F	no dist
20160515_002235	1.4,0.4,0.4	T	92.6415	54.4448	20150704_021500	-1	T	F	0.8" dist
20160515_002407	1.4,0.4,0.4	T	88.5159	55.0852	20150704_021500	-1	T	F
20160515_002434	1.4,0.4,0.4	T	101.041	54.1564	20150704_021500	-1	T	F
20160515_002752	1.4,0.4,0.4	T	92.688	55.1877	20150704_021500	-1	T	F
20160515_002807	1.4,0.4,0.4	T	103.083	55.0496	20150704_021500	-1	T	F

Final hexapod position:

DX HEXA

-6.73

-6.50

0.80

-69

-172

-- WolfgangGaessler - 14 May 2016