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Virgo Runs (O3)
berni - 22:57 Saturday 30 November 2019 (47823) Print this report
Operator Report - Afternoon shift

ITF in Science mode for all the shift.

Air Conditioning
In the attached plot 1 you see a trend of the parameters of the injection area air conditioning system; this afternoon Davide came on site to perform some checks (no need to break Science mode).

Today we had four periods of 20 seconds in which Hrec_Range_BNS was not computed, see attached plot 2.

( - ) Upon channel BsX_PZT on DMS will reach the critical value of 7, ISYS OnCall must contacted.

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Comments to this report:
rolland - 14:16 Sunday 01 December 2019 (47827) Print this report

HRec (and other Hrec processes also) was not computed during a few 16 s periods, complaining about the vector V1:SSFS_Err_Q_unnorm_10kHz being incomplete (vector used for noise subtraction).

  • 2019-11-28-22h00m30-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259013640     (first time it happened since 26th Nov 11h UTC when Hrec was restarted)
  • 2019-11-29-22h11m49-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259100722
  • 2019-11-29-22h49m16-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259102970
  • 2019-11-30-05h39m52-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259127607
  • 2019-11-30-08h10m11-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259136621
  • 2019-11-30-15h02m52-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259161385
  • 2019-11-30-17h38m16-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259170709
  • 2019-11-30-19h53m10-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259178803
  • 2019-11-30-19h58m12-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259179104
  • 2019-12-01-01h46m37-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259200007
  • 2019-12-01-01h47m09-UTC>WARNING-Incomplete vector V1:SSFS_Err_Q_unnorm_10kHz at 1259200040

We have to investigate if this is really the case since a quick look at dataDisplay does not show up obvious issue with the SSFS channel (see figures).

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rolland - 15:14 Tuesday 03 December 2019 (47843) Print this report

At 14h10 UTC, restarted HrecClean process using LSC_MICH instead of SSFS_Err_Q_unnorm_10kHz for MICH noise subtraction below 85 Hz. Both signals have very good coherence below 100 Hz.

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