40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Mon Jul 9 16:28:13 2012, Masha, Configuration, General, Seismometer repositioning  
    Reply  Tue Jul 10 10:50:02 2012, Jamie, Configuration, General, Seismometer repositioning  
Message ID: 6946     Entry time: Mon Jul 9 16:28:13 2012     Reply to this: 6951
Author: Masha 
Type: Configuration 
Category: General 
Subject: Seismometer repositioning  

Today I REPOSITIONED THE SEISMOMETERS in order to triangulate noise sources (as Rana suggested).

I re-levelled all of them, locked them, and turned them on. They should be located out of sight, but just in case:

GUR 1 IS DOWN THE X-ARM, behind the interferometer.

GUR 2 IS BETWEEN THE TWO ARMS, BEHIND THE CABLE TRAP THAT RUNS PARALLEL TO THE X-ARM.

STS 1 IS DOWN THE Y-ARM behind the interferometer.

I'll wait a day for them to stabilize (continuing to reset STS-1 every hour or so) and then begin taking data tomorrow morning, depending on the condition of the signal.

Ideally, I'd like a few days' worth of data, so I'll update when I've changed the configuration back to the way it was prior.

 

ELOG V3.1.3-