louis.dartez@LIGO.ORG - posted 14:21, Friday 17 November 2023 - last comment - 14:29, Friday 17 November 2023(74259)
17.6Hz SUS ETMX Line amplitude reduced
I've dropped the amplitude gain of the 17.6 SUS ETMX Line (SUS_LINE3) down to 0.12 from the 0.17 (LHO:74145) since Camilla and Gabriele set up and installed a new MICH FF filter (discussed in LHO:74139) which was engaged during today's commissioning period.
The command I used is below:
gpstime;val=0.12 && caput H1:SUS-ETMX_L3_CAL_LINE_CLKGAIN $val && caput H1:SUS-ETMX_L3_CAL_LINE_SINGAIN $val && caput H1:SUS-ETMX_L3_CAL_LINE_COSGAIN $val && caput H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_CLKGAIN $val && caput H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_SINGAIN $val && caput H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_COSGAIN $val
PST: 2023-11-17 13:51:37.083452 PST
UTC: 2023-11-17 21:51:37.083452 UTC
GPS: 1384293115.083452
Old : H1:SUS-ETMX_L3_CAL_LINE_CLKGAIN 0.1
New : H1:SUS-ETMX_L3_CAL_LINE_CLKGAIN 0.12
Old : H1:SUS-ETMX_L3_CAL_LINE_SINGAIN 0.1
New : H1:SUS-ETMX_L3_CAL_LINE_SINGAIN 0.12
Old : H1:SUS-ETMX_L3_CAL_LINE_COSGAIN 0.1
New : H1:SUS-ETMX_L3_CAL_LINE_COSGAIN 0.12
Old : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_CLKGAIN 0.1
New : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_CLKGAIN 0.12
Old : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_SINGAIN 0.1
New : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_SINGAIN 0.12
Old : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_COSGAIN 0.1
New : H1:CAL-CS_TDEP_SUS_LINE3_COMPARISON_OSC_COSGAIN 0.12
Images attached to this report
Comments related to this report
lscparams.py has been updated to use the new gain
Lines 461-464:
cal_line_gains = {'ETMX_L1': 6.6, # for CLK, SIN, COS
'ETMX_L2': 9,
'ETMX_L3': 0.12
}