Virgo Logbook

Upon arrival, I found ITF in Science Mode with BNS Range ~43 Mpc.
Troubleshooting Mode set in order to allow the Vacuum OnCall intervention at WE Building from 21:30 to 21:40 UTC.
Triggered by the Seismon flag alarm of DMS I set ITF in Earthquake configuration (ITF was already in Troubleshooting Mode) but unfortunately, after 1 minute (at 21:31 UTC), ITF unlocked anyway. The Earthquake happened in Indonesia with Mag 5.6 (fig1,2).
ITF relocked at first attempt. Science Mode set at 21:50 UTC with BNS Range ~43 Mpc.

GRB
22:41 UTC - [gracedb] Fermi event created: E346875. Alert reset at 22:42 UTC.

Guard tours (times in UTC)

from 21:30 to 22:02
from 23:15 to 24:00
from 01:31 to 02:00
from 04:00 to 04:31
from 04:52 to ...

Sub-system reports

DAQ
21:00 UTC - FbTrend_10800 (VPM) crashed / restarted.
21:50 UTC EarlyWarning (VPM) stopped / restarted in order to reset the Seismon DMS Alarm.

Oncall events

Vacuum
(10-08-2019 21:00 - 10-08-2019 23:30) On site
Status: Ended
Description: VAC_LN2WE__LT01_PS_LEVEL Red flag on DMS.
phase separator power supply fault.
Oncall came on-site to fix the problem.