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Virgo Runs (O3)
menzione - 15:00 Monday 17 June 2019 (46132) Print this report
Operator Report - morning shift

Upon arrival, I found ITF in Science Mode with BNS_Range ~ 45 Mpc.
ITF very unstable, It unlocked several times: 05:07, 05:53, 06:50, 08:52 UTC.
Mantovani and Ruggi are looking at the signals and analyzing this instability.

13:00 UTC - ITF left in Science Mode. BNS Range ~44 Mpc.

Susp
After the unlock of 08:52 WI LC opened by the guardian. With L. Trozzo (present in Control Room) we tried to close them without success due to an excess of oscillation at the level of F7. Lucia asked Majorana to fix the problem.
ISC
Upon closed WI loops, an oscillation at 14 Hz was still present on B8_DC. ISC expert damped it increasing the W arm gain loop by a factor 3 (from -350 to -1000).

VPM - DetChar
06:01 UTC lvalert_virgo crashed. Properly restarted at 06:02 UTC.
VPM - DataAccess
08:44 UTC MdVimSpectro crashed. Properly restarted at 08:57 UTC.
11:00 UTC MdVimSpectro crashed. Properly restarted at 11:04 UTC.
VPM - Storage-Stole03
09:00 UTC FbTrend10800 crashed. Properly restarted at 09:01 UTC.

CalibHrec
PCalNE (TFMoni_NEPCAL_PD1_PD2_60_Cohe) red flag on DMS, since 14/6 (plot). Expert informed.

Cali
11:00 UTC MagneticInjections launched under request of Paoletti.

ENV
Meteo station repaired (De Rosa).

Vacuum
12:44 UTC - VAC_TUBE3000N..V21ST again in operation thanks to Macchia

Images attached to this report
Comments to this report:
vardaro - 16:25 Monday 17 June 2019 (46134) Print this report

I increased the LSC_WArm_GAIN from -350 to -1000 in order to supperess the 14 Hz oscillation. This gain was increased online but I did not save it in the metatron ini file. At the next relock the oscillation was naturally damped.

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