charliewilliam.winborn@LIGO.ORG - posted 08:53, Monday 06 November 2023 (74019)
Data Quality Shift Report 2023-10-30 to 2023-11-05
Summary of the report:
H1 has been in observing mode for an average of 55.47% of the time this week.
Maintanence was performed on Tuesday which caused some of the downtime for that day.
Some glitches seen this week have correspondence to maintanence performed the week before mentioned in alog_73852.
Horizon lines can be seen on Monday, Tuesday, Thursday, Saturday, and Sunday.
Toward the end of the week it should be noted that there is a high frequency of microseism, and it seems to be steadily increasing.
Saturday currently has unexplained lockloss at 4:12 UTC ( I will check back on this later for an explanation).
Fscan plots appeared everyday except for Wednesday, which only had an observing percentage of 4.43%. On the other days the counts were all within normal ranges.
There were some winning channels in Hveto that had not appeared in some time (recent weeks) such as : H1:ASC-Y_TR_A_NSUM_OUT_DQ, H1:HPI-HAM4_BLND_L4C_Z_IN1_DQ, and H1:HPI-ETMX_BLND_L4C_RX_IN1_DQ
High SNR glitches seen on Monday, Tuesday, Friday and Saturday.