Displaying report 1-1 of 1.
Reports until 11:29, Thursday 04 December 2025
H1 SEI
ryan.short@LIGO.ORG - posted 11:29, Thursday 04 December 2025 (88362)
Ground Seismometer Mass Position Check - Monthly

FAMIS 38886, last checked in alog88025

Both HAM5 and the BS chambers were in 'ISI_DAMPED_HEPI_OFFLINE' at the time this was run, but all other chambers were nominal.

There are 15 T240 proof masses out of range ( > 0.3 [V] )!
ETMX T240 2 DOF X/U = -1.565 [V]
ETMX T240 2 DOF Y/V = -1.633 [V]
ETMX T240 2 DOF Z/W = -0.886 [V]
ITMX T240 1 DOF X/U = -2.256 [V]
ITMX T240 1 DOF Z/W = 0.467 [V]
ITMX T240 3 DOF X/U = -2.386 [V]
ITMY T240 3 DOF X/U = -1.073 [V]
ITMY T240 3 DOF Z/W = -2.895 [V]
BS T240 1 DOF Y/V = -0.323 [V]
BS T240 2 DOF Z/W = 0.327 [V]
BS T240 3 DOF X/U = -0.547 [V]
BS T240 3 DOF Z/W = -0.401 [V]
HAM8 1 DOF X/U = -0.638 [V]
HAM8 1 DOF Y/V = -0.729 [V]
HAM8 1 DOF Z/W = -1.11 [V]

All other proof masses are within range ( < 0.3 [V] ):
ETMX T240 1 DOF X/U = 0.007 [V]
ETMX T240 1 DOF Y/V = -0.049 [V]
ETMX T240 1 DOF Z/W = -0.017 [V]
ETMX T240 3 DOF X/U = -0.005 [V]
ETMX T240 3 DOF Y/V = -0.056 [V]
ETMX T240 3 DOF Z/W = -0.051 [V]
ETMY T240 1 DOF X/U = 0.045 [V]
ETMY T240 1 DOF Y/V = 0.198 [V]
ETMY T240 1 DOF Z/W = 0.249 [V]
ETMY T240 2 DOF X/U = -0.073 [V]
ETMY T240 2 DOF Y/V = 0.218 [V]
ETMY T240 2 DOF Z/W = 0.037 [V]
ETMY T240 3 DOF X/U = 0.268 [V]
ETMY T240 3 DOF Y/V = 0.076 [V]
ETMY T240 3 DOF Z/W = 0.147 [V]
ITMX T240 1 DOF Y/V = 0.254 [V]
ITMX T240 2 DOF X/U = 0.151 [V]
ITMX T240 2 DOF Y/V = 0.258 [V]
ITMX T240 2 DOF Z/W = 0.223 [V]
ITMX T240 3 DOF Y/V = 0.104 [V]
ITMX T240 3 DOF Z/W = 0.094 [V]
ITMY T240 1 DOF X/U = 0.074 [V]
ITMY T240 1 DOF Y/V = 0.123 [V]
ITMY T240 1 DOF Z/W = -0.013 [V]
ITMY T240 2 DOF X/U = 0.017 [V]
ITMY T240 2 DOF Y/V = 0.22 [V]
ITMY T240 2 DOF Z/W = 0.148 [V]
ITMY T240 3 DOF Y/V = 0.091 [V]
BS T240 1 DOF X/U = 0.184 [V]
BS T240 1 DOF Z/W = -0.223 [V]
BS T240 2 DOF X/U = 0.094 [V]
BS T240 2 DOF Y/V = -0.224 [V]
BS T240 3 DOF Y/V = 0.004 [V]

There are 2 STS proof masses out of range ( > 2.0 [V] )!
STS EY DOF X/U = -4.625 [V]
STS EY DOF Z/W = 2.321 [V]

All other proof masses are within range ( < 2.0 [V] ):
STS A DOF X/U = -0.498 [V]
STS A DOF Y/V = -0.915 [V]
STS A DOF Z/W = -0.485 [V]
STS B DOF X/U = 0.154 [V]
STS B DOF Y/V = 0.939 [V]
STS B DOF Z/W = -0.337 [V]
STS C DOF X/U = -0.685 [V]
STS C DOF Y/V = 0.77 [V]
STS C DOF Z/W = 0.505 [V]
STS EX DOF X/U = -0.195 [V]
STS EX DOF Y/V = -0.111 [V]
STS EX DOF Z/W = 0.112 [V]
STS EY DOF Y/V = 1.271 [V]
STS FC DOF X/U = 0.071 [V]
STS FC DOF Y/V = -1.254 [V]
STS FC DOF Z/W = 0.567 [V]
 

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