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groups:homestake:monitoring:may4

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DQ Shift for Week of May 4th

Shifter: Pat Meyers

May 4th, 2015

  • Looks like maybe an EQ around 0100 UTC. One of these three? 1,2, 3?
  • Translational motion (but not vertical) at 300 level consistent throughout the day: 300 level page.
  • Sharp spike at around 1900 UTC in all sensors, not consistent with timing error/other channels that I can see.
  • 2000C mass position 1 is “high” and 3 is close to that —> 4V,-3.8V (see here)

May 5th, 2015

  • EQ or something big between 1:30 and 3 am This one, I'd guess....
  • Sharp spike at 2000E station at 11:30UTC.
  • WTP showing non-stationarity late in the day in N/E channels.
  • 4850A mass position 1/2/3/timing quality all go crazy at 00:00UTC: seen here.
  • 2000C mass positions still high (see above link); 2000E mass position still nonsense.
  • 800 level mass position 2 high (and climbing throughout day today and yesterday) here.

May 6th, 2015

  • Timing quality normal. 5 drops for underground stations spaced throughout day. Seems standard.
  • 300 station has spikes in it's time series: here
  • One especially large spike seen in all UG stations at ~22:30 UTC: seen here
  • 2000C E channel has a glitch at around 7:00UTC whose amplitude takes ~1 hour to decrease back to level of noise here.
  • ORO,WTP seeing some very interesting changes in amplitude throughout the day: ORO and WTP.
  • ORO, WTP and 2000C artifacts ONLY show up in N and E channels, not in Z channel.
  • Mass positions for 800, 2000C showing voltages above where we'd like them to be. They are recentered by Tanner on May 7th (UTC time)

May 7th, 2015

May 8th, 2015

May 9th, 2015

May 10th, 2015

groups/homestake/monitoring/may4.1431275342.txt.gz · Last modified: 2015/05/10 11:29 by meyers