DetChar (General)shoichi.oshino - 15:06 Tuesday 26 November 2024 (31773)
Print this reportDET report on 11/25* Hveto I found line glitch around 50 -60 Hz same as klog 31749. This time, Omegascan generated plots of OpLev signals. These plots coincide with this line glitch. As previously reported, several microphones and seismometers in the center area recorded a line glitch of about 6 seconds. This glitch and the line glitch appearing in DARM have a coincidence. I found that the same line glitches were also recorded in the OpLev signals of ITMX and ITMY. This means that this environmental noise might affect the OpLev devices of ITMX and ITMY.