Link to report here.

• Observing performance:
  H1 achieved an average observing duty cycle of 48.77% for the week. Operations started with several issues but showed a notable recovery toward the weekend, reaching 87.1% on Saturday and Sunday.

• Environmental disturbances:
  The main causes of lock losses were earthquake-band and wind-band motion. Three significant seismic events were recorded: a magnitude 6.0 earthquake in Russia on Tuesday, 6.6 in Japan on Sunday, and 5.7 in Mexico on Friday. Additionally, there was considerable microseismic activity throughout the week.

• Spectral features:
  Persistent violin modes were observed, particularly the fundamental around 500 Hz.

• Notable noise events:
  Tuesday exhibited multiple BNS range drops and broadband noise excess across all frequencies starting around 10 UTC. Probably related with ETMX violin mode ring-up which caused excess noise in DARM, leading to lock loss. This day also registered the highest line count of the week, reaching approximately 5000.

• Detchar tab:
  Hveto pages were not generated for the last three days of the week.
  FSCAN plots reported the lowest line count on Friday (~1900 lines) and the highest on Tuesday (~5000 lines) above treshold.

• Relevant Round Winners:

  • No winners in monday, but H1:LSC-POP_A_LF_OUT_DQ repeated 3rd place in the past 7 days.

  • Tuesday: H1:SUS-ETMX_L3_OPLEV_PIT_OUT_DQ top 1 for second time in 7 days.