Virgo Runs (O4c)gherardini - 22:57 Sunday 31 August 2025 (67607)
Print this reportOperator Report - Afternoon shiftThis afternoon the ITF lock stability was not so good with locks not longer than half an hour, the problems seem to be again correlated to a worsening of the SIB1 suspension control; the situation get really bad in the evening, at this point I tried to switch off (1924UTC) the SIB1 ID control leaving it only with the position control and try to relock; this helped somehow but the the effects of this earthquake:
M 6.0 - 27 km ENE of Jalalabad, Afghanistan Time 2025-08-31 21:17:34 (UTC+02:00) Location 34.519°N 70.734°E Depth 8.0 km
prevented to relock for a while, ITF finally relocked and science mode started at 20:49UTC.
