J. Kissel

As a result of recent findings that the collection of lines used to probe the low frequency sensing function at 
    PCALY_EXC  8.925, 11.575, 15.275, 24.5 [Hz]
    DARM_EXC   8.825, 11.475, 15.175, 24.4 [Hz]

are causing excess non-linearities found when looking over long time scales --- see LHO:71964 --- I've turned OFF these calibration lines as of 2023-08-09 16:40 UTC. We were already out of observing for PEM injections anyways, and Robert relinquished a moment for me to quickly turn these off.

I've accepted the changes in both the PCALY (h1caley) and OMC (h1omc) front-end model's SDFs against both the safe and OBSERVE.snaps such that this sticks.



Here's the latest list of calibration lines:
Freq (Hz)   Actuator                   Purpose                      Channel that defines Freq             Changes Since Last Update (LHO:69736)     
8.825       DARM (via ETMX L1,L2,L3)   Live DARM OLGTFs             H1:LSC-DARMOSC1_OSC_FREQ              Turned OFF; THIS aLOG
8.925       PCALY                      Live Sensing Function        H1:CAL-PCALY_PCALOSC5_OSC_FREQ        Turned OFF; THIS aLOG
11.475      DARM (via ETMX L1,L2,L3)   Live DARM OLGTFs             H1:LSC-DARMOSC2_OSC_FREQ              Turned OFF; THIS aLOG
11.575      PCALY                      Live Sensing Function        H1:CAL-PCALY_PCALOSC6_OSC_FREQ        Turned OFF; THIS aLOG
15.175      DARM (via ETMX L1,L2,L3)   Live DARM OLGTFs             H1:LSC-DARMOSC3_OSC_FREQ              Turned OFF; THIS aLOG
15.275      PCALY                      Live Sensing Function        H1:CAL-PCALY_PCALOSC7_OSC_FREQ        Turned OFF; THIS aLOG
24.400      DARM (via ETMX L1,L2,L3)   Live DARM OLGTFs             H1:LSC-DARMOSC4_OSC_FREQ              Turned OFF; THIS aLOG
24.500      PCALY                      Live Sensing Function        H1:CAL-PCALY_PCALOSC8_OSC_FREQ        Turned OFF; THIS aLOG
15.6        ETMX UIM (L1) SUS          \kappa_UIM excitation        H1:SUS-ETMY_L1_CAL_LINE_FREQ          No change
16.4        ETMX PUM (L2) SUS          \kappa_PUM excitation        H1:SUS-ETMY_L2_CAL_LINE_FREQ          No change
17.1        PCALY                      actuator kappa reference     H1:CAL-PCALY_PCALOSC1_OSC_FREQ        No change
17.6        ETMX TST (L3) SUS          \kappa_TST excitation        H1:SUS-ETMY_L3_CAL_LINE_FREQ          No change
33.43       PCALX                      Systematic error lines       H1:CAL-PCALX_PCALOSC4_OSC_FREQ        No change
53.67         |                            |                        H1:CAL-PCALX_PCALOSC5_OSC_FREQ        No change
77.73         |                            |                        H1:CAL-PCALX_PCALOSC6_OSC_FREQ        No change
102.13        |                            |                        H1:CAL-PCALX_PCALOSC7_OSC_FREQ        No change
283.91        V                            V                        H1:CAL-PCALX_PCALOSC8_OSC_FREQ        No change
284.01      PCALY                      PCALXY comparison            H1:CAL-PCALY_PCALOSC4_OSC_FREQ        Off briefly between 2023-08-01 22:02 - 22:11 UTC, back on as of 22:16 UTC
410.3       PCALY                      f_cc and kappa_C             H1:CAL-PCALY_PCALOSC2_OSC_FREQ        No Change
1083.7      PCALY                      f_cc and kappa_C monitor     H1:CAL-PCALY_PCALOSC3_OSC_FREQ        No Change
n*500+1.3   PCALX                      Systematic error lines       H1:CAL-PCALX_PCALOSC1_OSC_FREQ        No Change (n=[2,3,4,5,6,7,8])