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Reports until 09:09, Monday 06 April 2026
H1 SEI (SEI)
corey.gray@LIGO.ORG - posted 09:09, Monday 06 April 2026 (89789)
SEI ground seismometer mass position check - Monthly (#39345)

Monthly FAMIS Check (#39345)

T240 Centering Script Output:

Averaging Mass Centering channels for 10 [sec] ...
2026-04-06 09:03:52.267253
There are 11 T240 proof masses out of range ( > 0.3 [V] )!
ETMX T240 2 DOF X/U = -1.862 [V]
ETMX T240 2 DOF Y/V = -1.903 [V]
ETMX T240 2 DOF Z/W = -1.191 [V]
ITMX T240 1 DOF X/U = -2.423 [V]
ITMX T240 1 DOF Z/W = 0.37 [V]
ITMX T240 3 DOF X/U = -2.723 [V]
ITMY T240 3 DOF X/U = -1.215 [V]
ITMY T240 3 DOF Z/W = -3.11 [V]
BS T240 3 DOF X/U = -0.38 [V]
HAM8 1 DOF Y/V = -0.456 [V]
HAM8 1 DOF Z/W = -0.766 [V]

   All other proof masses are within range ( < 0.3 [V] ):
ETMX T240 1 DOF X/U = -0.079 [V]
ETMX T240 1 DOF Y/V = -0.076 [V]
ETMX T240 1 DOF Z/W = -0.114 [V]
ETMX T240 3 DOF X/U = -0.097 [V]
ETMX T240 3 DOF Y/V = -0.159 [V]
ETMX T240 3 DOF Z/W = -0.087 [V]
ETMY T240 1 DOF X/U = 0.027 [V]
ETMY T240 1 DOF Y/V = 0.07 [V]
ETMY T240 1 DOF Z/W = 0.259 [V]
ETMY T240 2 DOF X/U = -0.204 [V]
ETMY T240 2 DOF Y/V = 0.238 [V]
ETMY T240 2 DOF Z/W = 0.042 [V]
ETMY T240 3 DOF X/U = 0.267 [V]
ETMY T240 3 DOF Y/V = 0.048 [V]
ETMY T240 3 DOF Z/W = 0.007 [V]
ITMX T240 1 DOF Y/V = 0.28 [V]
ITMX T240 2 DOF X/U = 0.119 [V]
ITMX T240 2 DOF Y/V = 0.163 [V]
ITMX T240 2 DOF Z/W = 0.263 [V]
ITMX T240 3 DOF Y/V = 0.143 [V]
ITMX T240 3 DOF Z/W = 0.057 [V]
ITMY T240 1 DOF X/U = -0.045 [V]
ITMY T240 1 DOF Y/V = 0.16 [V]
ITMY T240 1 DOF Z/W = -0.038 [V]
ITMY T240 2 DOF X/U = 0.052 [V]
ITMY T240 2 DOF Y/V = 0.2 [V]
ITMY T240 2 DOF Z/W = 0.036 [V]
ITMY T240 3 DOF Y/V = -0.021 [V]
BS T240 1 DOF X/U = 0.043 [V]
BS T240 1 DOF Y/V = -0.119 [V]
BS T240 1 DOF Z/W = -0.038 [V]
BS T240 2 DOF X/U = 0.235 [V]
BS T240 2 DOF Y/V = -0.134 [V]
BS T240 2 DOF Z/W = 0.132 [V]
BS T240 3 DOF Y/V = -0.158 [V]
BS T240 3 DOF Z/W = -0.169 [V]
HAM8 1 DOF X/U = -0.297 [V]
Assessment complete.

STS Centering Script Output:
Averaging Mass Centering channels for 10 [sec] ...
 
2026-04-06 09:04:04.266410
There are 2 STS proof masses out of range ( > 2.0 [V] )!
STS EY DOF X/U = -4.57 [V]
STS EY DOF Z/W = 2.369 [V]

   All other proof masses are within range ( < 2.0 [V] ):
STS A DOF X/U = -0.496 [V]
STS A DOF Y/V = -0.768 [V]
STS A DOF Z/W = -0.628 [V]
STS B DOF X/U = 0.152 [V]
STS B DOF Y/V = 0.942 [V]
STS B DOF Z/W = -0.444 [V]
STS C DOF X/U = -0.995 [V]
STS C DOF Y/V = 0.908 [V]
STS C DOF Z/W = 0.636 [V]
STS EX DOF X/U = 0.606 [V]
STS EX DOF Y/V = -0.511 [V]
STS EX DOF Z/W = -0.372 [V]
STS EY DOF Y/V = 1.135 [V]
STS FC DOF X/U = 0.153 [V]
STS FC DOF Y/V = -1.192 [V]
STS FC DOF Z/W = 0.629 [V] 
Assessment complete.

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