Mon Aug 26 03:58:51 GMT 2013

Start Observations: 10:00 pm

Telescope at zenith, HBS running

added act 501 in act_wo_icc list. Modification installed.

Flattening

Tracknum	nmodes	note
20130826_050759	20
20130826_051005	50
20130826_051229	100	this is the new default flat

flattening with 200 modes with intmat: 20130825_140604/flat_data_301modes.sav failed (same result as yesterday)

we now try to build up a new inter matrix with the following tracknums: tr=['20130825_132358','20130825_160410']

flattening failed

flattening failed also when trying to flatten several times with 100 modes

INTMAT

A problem was found: last 1 or 2 modes are collected with zero command. That is particularly problematic when we want to join together two or more set of modes. While waiting for a fix, we collect IM with modes 0-200 in a single measure.

Tracknum	modes	amp	notes
20130826_060154	0-200	default

Again missing frames. We found that the lost frames were not necessarily the last ones, but some frame was missing within the sequence. That is Trigger problem. All the IntMat made up to now in this run are not good, all have at least one missing frame.

Fixing of the Trigger Problem

We found a way to estimate the number of missing trigger frames. The 4D log has been updated to show this info. The 4D log is here:

/towerdata/meas/adsec_calib/4d/4Dlog/yyyymmdd/4Dlog.out

Start troubleshooting

Reset the 4D: still missing frames

cleaned all the fiber connectors (excluded the one of SW BCU for the moment): still missing frames

Changed the trigger transceiver box with a spare: no longer missing frames OK

INTMAT

after resetting the 4D we found that the phasemap sign was changed. KEYWORD FACTOR=-1 added to hexalign and opt_int_mat_reduce2

Tracknum	modes	amp	notes
20130826_082237	0-100	default
20130826_082320	101-200	default
20130826_093307	201-300	default
20130826_093459	301-400	default
20130826_101307	401-500	default
20130826_101350	501-660	default	non correction
20130826_124249	501-660	FORCE=05/0.3

Flattening

Tracknum	nmodes	redid nm rms	notes	INTMAT
20130826_085121	101	178nm rms		20130826_082237
20130826_085322	101	174nm rms	reflattening
20130826_085547	101	174nm rms	reflattening
20130826_092338	201	116nm rms		20130826_082237+20130826_082320
20130826_092810	201	110nm rms	reflattening
20130826_093045	201	110nm rms	reflattening
20130826_100619	301	97		20130826_082237+20130826_082320+20130826_093307
20130826_100836	301	73	reflattening
20130826_101051	301	71	reflattening
20130826_101620	401	74		20130826_082237+20130826_082320+20130826_093307+20130826_093459
20130826_101837	401	65	reflattening
20130826_101959	401	82	reflattening
20130826_102315	401	67	reflattening
20130826_105642	501	58		20130826_082237+20130826_082320+20130826_093307+20130826_093459+20130826_101307
20130826_110258	501	60	reflattening+hexalign
20130826_110644	501	60	reflattening
20130826_115211	661	52		20130826_082237+20130826_082320+20130826_093307+20130826_093459+20130826_101307+20130826_101350
20130826_115727	661		reflattening
20130826_082237	661	55	reflattening	note;avetime=100
20130826_082237	661	55	reflattening	note;avetime=100
20130826_135227	600	40	reflattening	after puting a large mask hole.
20130826_142940	600	30	reflattening	with large mask. latched as default

print, build_int_mat(['20130826_082237','20130826_082320'])

convection is now affecting the data quality, so we decided to average images over a longer time span. see command below, where avetime is the total spanned time

print, opt_int_mat_reduce2(661,TRACK='20130826_082237', avetime=100)

INT MAT WITH SCALE FORCE

Running the intmat with the scale force factor applied. Command applied;AdOpt >print, i4d_opt_intmat(501,660, FORCE_SCALE=0.5/0.3)

With the new INT MAT the flattening is still high in the centre but it has improved in the edges; WFRMS:70nm.

A large mask covering all fringing effect of the mask hole is applied and it has been seeing that the forces aplied in the cetrer are less and the flat at the edges is better, the RMSWF goes around 36nm.

A large acquisition of the flat is taking to reduce the convections using the large mask. The command applied; AdOpt >print, opt_int_mat_reduce2(600,TRACK='20130826_082237', avetime=100)

Noise measurement

20130826_102500_noise

we evaluated that convection at 0.1 ms provides a WFE =40nm RMS

flood lights off

New interaction matrix

500x500, small mask ; AdOpt >print, i4d_opt_intmat(i*50,i*50+49,avera=11)&i+=1

After mode 500 we applied the command; AdOpt >print, i4d_opt_intmat(600,660,avera=11,FORCE_sc=0.5/0.3)&i+=1

comm4d.Produce is run for the set of intmats

Tracknum	modes	nave	notes
20130826_150704	0-49	11
20130826_150915	50-99	11
20130826_151003	100-149	11
20130826_151054	150-199	11
20130826_151140	200-249	11
20130826_151239	250-299	11
20130826_151337	300-349	11
20130826_151434	350-399	11
20130826_151530	400-449	11
20130826_151637	450-499	11
20130826_151821	500-549	11	extra force
20130826_151910	550-599	11	extra force
20130826_152020	600-660	11	extra force

tracknum= ['20130826_150704','20130826_150915','20130826_151003','20130826_151054','20130826_151140','20130826_151239','20130826_151337','20130826_151434','20130826_151530','20130826_151637','20130826_151821','20130826_151910','20130826_152020']

Noise measurements (still flood lights off):

20130826_140000_noise

New intmat produce

with larger mask (masking also the mousehole), same folder as before (same dataset) tracknum is +1hr: 150915 --> 160915

['20130826_160704','20130826_160915','20130826_161003','20130826_161054','20130826_161140','20130826_161239','20130826_161337','20130826_161434','20130826_161530','20130826_161637','20130826_161821','20130826_161910','20130826_162020']

HEXAPOD POSITION:

X(mm)	Y(mm)	Z(mm)	Rx(arcsec)	Ry(arcsec)	Rz(arcsec)
-0.13	0.92	4.2	-170	-143	0

Stop Observations: 8:30 AM

interaction matrix

20130826_150915

-- ArmandoRiccardi - 26 Aug 2013