Reports until 15:19, Friday 06 March 2026
H1 SEI
ryan.short@LIGO.ORG - posted 15:19, Friday 06 March 2026 (89408)
Ground Seismometer Mass Position Check - Monthly

FAMIS 38889, last checked in alog89213

There are 12 T240 proof masses out of range ( > 0.3 [V] )!
ETMX T240 2 DOF X/U = -1.784 [V]
ETMX T240 2 DOF Y/V = -1.829 [V]
ETMX T240 2 DOF Z/W = -1.089 [V]
ITMX T240 1 DOF X/U = -2.403 [V]
ITMX T240 1 DOF Z/W = 0.447 [V]
ITMX T240 3 DOF X/U = -2.587 [V]
ITMY T240 3 DOF X/U = -1.122 [V]
ITMY T240 3 DOF Z/W = -3.098 [V]
BS T240 3 DOF Z/W = -0.34 [V]
HAM8 1 DOF X/U = -0.301 [V]
HAM8 1 DOF Y/V = -0.439 [V]
HAM8 1 DOF Z/W = -0.746 [V]

All other proof masses are within range ( < 0.3 [V] ):
ETMX T240 1 DOF X/U = -0.045 [V]
ETMX T240 1 DOF Y/V = -0.067 [V]
ETMX T240 1 DOF Z/W = -0.059 [V]
ETMX T240 3 DOF X/U = -0.048 [V]
ETMX T240 3 DOF Y/V = -0.118 [V]
ETMX T240 3 DOF Z/W = -0.075 [V]
ETMY T240 1 DOF X/U = 0.032 [V]
ETMY T240 1 DOF Y/V = 0.17 [V]
ETMY T240 1 DOF Z/W = 0.232 [V]
ETMY T240 2 DOF X/U = -0.109 [V]
ETMY T240 2 DOF Y/V = 0.203 [V]
ETMY T240 2 DOF Z/W = 0.034 [V]
ETMY T240 3 DOF X/U = 0.244 [V]
ETMY T240 3 DOF Y/V = 0.057 [V]
ETMY T240 3 DOF Z/W = 0.108 [V]
ITMX T240 1 DOF Y/V = 0.293 [V]
ITMX T240 2 DOF X/U = 0.134 [V]
ITMX T240 2 DOF Y/V = 0.244 [V]
ITMX T240 2 DOF Z/W = 0.238 [V]
ITMX T240 3 DOF Y/V = 0.115 [V]
ITMX T240 3 DOF Z/W = 0.065 [V]
ITMY T240 1 DOF X/U = 0.02 [V]
ITMY T240 1 DOF Y/V = 0.142 [V]
ITMY T240 1 DOF Z/W = 0.012 [V]
ITMY T240 2 DOF X/U = 0.018 [V]
ITMY T240 2 DOF Y/V = 0.239 [V]
ITMY T240 2 DOF Z/W = 0.112 [V]
ITMY T240 3 DOF Y/V = 0.043 [V]
BS T240 1 DOF X/U = -0.06 [V]
BS T240 1 DOF Y/V = -0.286 [V]
BS T240 1 DOF Z/W = 0.208 [V]
BS T240 2 DOF X/U = 0.069 [V]
BS T240 2 DOF Y/V = 0.117 [V]
BS T240 2 DOF Z/W = 0.022 [V]
BS T240 3 DOF X/U = -0.132 [V]
BS T240 3 DOF Y/V = -0.259 [V]

There are 2 STS proof masses out of range ( > 2.0 [V] )!
STS EY DOF X/U = -4.566 [V]
STS EY DOF Z/W = 2.375 [V]

All other proof masses are within range ( < 2.0 [V] ):
STS A DOF X/U = -0.576 [V]
STS A DOF Y/V = -0.668 [V]
STS A DOF Z/W = -0.645 [V]
STS B DOF X/U = 0.124 [V]
STS B DOF Y/V = 0.96 [V]
STS B DOF Z/W = -0.355 [V]
STS C DOF X/U = -0.947 [V]
STS C DOF Y/V = 0.891 [V]
STS C DOF Z/W = 0.653 [V]
STS EX DOF X/U = 0.578 [V]
STS EX DOF Y/V = -0.515 [V]
STS EX DOF Z/W = -0.367 [V]
STS EY DOF Y/V = 1.166 [V]
STS FC DOF X/U = 0.155 [V]
STS FC DOF Y/V = -1.181 [V]
STS FC DOF Z/W = 0.633 [V]