G. Mendell, S. Karki, D. Tuyenbayev
Attached are plots showing the calibration factors (kappa_tst, kappa_pu, kappa_A, kappa_C and f_c) for ER9 generated from Spectral Line Monitor (SLM) data, analyzed using Matlab code from Sudarshan Karki and EPICS values from Darkhan Tuyenbayev.
The plots show the calibration factors from
1152010820 == Jul 08 2016 11:00:03 UTC
to
1152097220 == Jul 09 2016 11:00:03 UTC
For example, note the behavior of kappa_C and f_c after 18 hrs in the bottom row of the first attached plot.
A full set of plots can be found by going here,
https://ldas-jobs.ligo-wa.caltech.edu/~gmendell/pcalmon_with_plots/daily-pcalmonNavigation.html
and clicking on July 9 2016 in the calendar in the left frame, and then any of the links to the plots in the middle frame. (To compare with O1, click on Dec. 26, 2015 and then on the links to the plots.)
Technical Notes:
1. The SLM tool is in the calibration svn here,
aligocalibration/trunk/Projects/PhotonCalibrator/scripts/SLMTool
and analyzed line amplitudes and phases for the channels and frequencies given in this configuration:
set channelFrequencyList {H1_R,H1:SUS-ETMY_LKIN_P_LO_DQ,35.9aup;H1_R,H1:CAL-CS_LINE_SUM_DQ,37.3aup;
H1_R,H1:CAL-PCALY_EXC_SUM_DQ,36.7aup,331.9aup,1083.7aup;
H1_R,H1:CAL-PCALX_EXC_SUM_DQ,3001.3aup;H1_R,H1:CAL-DARM_ERR_WHITEN_OUT_DBL_DQ,35.9aup,36.7aup,37.3aup,331.9aup,1083.7aup,3001.3aup;
H1_R,H1:CAL-DARM_CTRL_WHITEN_OUT_DBL_DQ,35.9aup,36.7aup,37.3aup,331.9aup,1083.7aup,3001.3aup;
H1_R,H1:CAL-PCALY_TX_PD_OUT_DQ,36.7aup,331.9aup,1083.7aup;H1_R,H1:CAL-PCALY_RX_PD_OUT_DQ,36.7aup,331.9aup,1083.7aup;
H1_R,H1:CAL-PCALX_TX_PD_OUT_DQ,3001.3aup;H1_R,H1:CAL-PCALX_RX_PD_OUT_DQ,3001.3aup;
H1_R,H1:CAL-DELTAL_EXTERNAL_DQ,35.9aup,36.7aup,37.3aup,331.9aup,1083.7aup,3001.3aup;
H1_HOFT_C00,H1:GDS-CALIB_STRAIN,35.9aup,36.7aup,37.3aup,331.9aup,1083.7aup,3001.3aup}
with these replacements:
35.9 -> 35.3 Hz
H1:SUS-ETMY_LKIN_P_LO_DQ -> H1:SUS-ETMY_L3_CAL_LINE_OUT_DQ
2. EPIC values from Darkhan Tuyenbayev were used, found in the calibration svn here:
aligocalibration/trunk/Runs/PreER9/H1/Scripts/CAL_EPICS/D20160810_H1_CAL_EPICS_VALUES.m
See: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=29104
3. The Matlab code from Sudarshan Karki is in this tarball in the calibration svn,
aligocalibration/trunk/Projects/PhotonCalibrator/scripts/SLMTool/slm_matlab_analysis_code_for_compiling_ER9.tar
The Matlab code was changed from that used during O1, with these changes,
i. D20150929H1_CAL_EPICS_VALUES.m was replace with D20160810_H1_CAL_EPICS_VALUES.m. (And EP. was added to the front
of each EP value to make this into a struct; D20160810_H1_CAL_EPICS_VALUES is run by testSLMData_analysis.m.)
ii. In loadSLMData.m, 35.9 was changed to 35.3 Hz, and dewhitening.darm_err and dewhitening.darm_ctrl were changed to
unity gain filters by setting z = 2*pi*[1,1]; p = 2*pi*[1,1]. This is becuase the H1:CAL-DARM_ERR_WHITEN_OUT_DBL_DQ and
H1:CAL-DARM_CTRL_WHITEN_OUT_DBL_DQ do not need dewhitening, compared to the single precision version of these for O1.
4. This email from Shivaraj pointed out the need to use 35.3 Hz in place of 35.9 Hz.
-------- Original Message --------
Subject: [calibration] ESD line during ER9
Date: Thu, 4 Aug 2016 14:48:30 -0500
From: shivaraj ...
"Hi,
During the call I mentioned that one has to use 35.3 Hz line in channel
H1:SUS-ETMY_L3_CAL_LINE (same as O1) as opposed to 35.9 Hz we used
during O1.
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28164
In the above a-log entry it was mentioned that 35.9 Hz was run from a
different channel
(H1:SUS-ETMY_LKIN_P_OSC) and hence changing the channel should work. But
I don't see the
35.9 Hz line in CAL-DELTA_EXTERANL,
https://ldas-jobs.ligo.caltech.edu/~shivaraj/calibration/sus_lines_ER9.png
which is why I had switch the line frequency not the channel.
Cheers
shivaraj"
5. Previous alogs:
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=27981
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=28164
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=29104