Reports until 09:07, Friday 06 January 2017
H1 CAL (CAL)
aaron.viets@LIGO.ORG - posted 09:07, Friday 06 January 2017 - last comment - 19:51, Friday 06 January 2017(33023)
DCS filters for LHO data starting at the beginning of 2017
I have produced new DCS filters that incorporate the recent changes in the front-end calibration model, including the updated L2/L3 crossover. The filters can be found in the calibration SVN at this location:
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/GDSFilters/H1DCS_1167436818.npz

For information on the changes in the calibration model, see these aLOGs:
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=33004
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=32933
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=32907

The filters were produced using this Matlab script in SVN revision 4095:
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Scripts/TDfilters/H1_run_td_filters_1167436818.m

The parameters files used (all in revision 4095) were:
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/Common/params/IFOindepParams.conf
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/params/H1params.conf
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/params/2017-01-03/H1params_2017-01-03.conf
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/params/H1_TDparams_1167436818.conf
/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O2/H1/Scripts/CAL_EPICS/D20170103_H1_CAL_EPICS_VALUES.m

Several plots are attached. The first four (png files) are spectrum comparisons between DCS, CLACS, and GDS at GPS time 1167559872 (Jan 04, 2017, 10:10 UTC). Kappas were applied in making the DCS and DCS spectrum, both using the EPICS from the filters file. The filters used to produce the GDS spectrum were produced from the same parameters files (see https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=33021 ). The reason the GDS and DCS spectra do not agree may be due to the fact that the new calibration model had not been pushed to the front-end calibration at the time the comparison was made. This comparison will be redone once the new model is pushed. The last pdf contains a time series of the kappas computed by DCS and CALCS. Note that they do not agree. This is expected, as the EPICS were not updated in the front end.
Images attached to this report
Non-image files attached to this report
Comments related to this report
aaron.viets@LIGO.ORG - 19:51, Friday 06 January 2017 (33049)CAL
Here are updated plots from the first lock stretch after the new calibration model was pushed (Jan 6, 2017, 19 UTC). Note that DCS and GDS now agree as expected.
Images attached to this comment
Non-image files attached to this comment