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Reports until 09:26, Tuesday 24 December 2019
H1 CAL
vladimir.bossilkov@LIGO.ORG - posted 09:26, Tuesday 24 December 2019 - last comment - 13:25, Friday 03 January 2020(54087)
Update to H1CALCS filters

I have prepared an update to the H1CALCS filterbank, for the L1,L2,L3 stages for ETMX and ETMY - as LLO did last month.

The changes incorporate:

I have included a plot of what the new filter for the uim will look like in foton. In the minimum realization step of simplifying this new feature of the model to be foton friendly, a lot of features were cut away, and we're basically left with a single feature at 152 Hz.

If there is some downtime today (like an earthquake from Paraguay), I will be implementing this update, and enabling the new uim filter in the frontend.

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vladimir.bossilkov@LIGO.ORG - 12:54, Tuesday 24 December 2019 (54092)

Turns out other changes need to be made in parallel with this, so this will have to wait until the new year.

vladimir.bossilkov@LIGO.ORG - 13:25, Friday 03 January 2020 (54263)

I made some futher improvements the new new foton transfer functions to better model the UIM changes I had added. See attached plots

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