TITLE: 11/05 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 68.2743Mpc
INCOMING OPERATOR: Travis
SHIFT SUMMARY:

H1 locked most of the shift and getting back to NLN wasn't too tough (other than a Beam Diverter issue, which is noted below).

LOG:

• Bubba on-site checking for possible water leaks.
• 16:17 Robert checking out REFL DC pd (thought he could break lock, but he did not.)
• 16:53 Topped off PSL Chiller (Corey)
• 17:37 Robert heading to End Stations for PEM Injections
• 17:54  I forgot to drop us out of Undisturbed/Observing & we went to Commissioning at this time.  Really, Commissioning should have been set at 16:17!
• Phone at EY not working
• 19:09 Transitioning SEI to WINDY NO BRS X since Robert just arrived at EX.  Have started receiving EX & EY saturations while I was on the phone with Robert and just after I made this transition.  We are at hight useism (which is new).  So yeah, it appears without the BRS & this high useism that H1 becomes pretty glitchy.
  • NOTE:  I forgot to turn off the BRS for Y when Robert was at EY!  Did not receive any EX/EY saturations when he was down there.
• 19:24 SEI Transistioned back to WINDY by Robert at EX.
• 19:53 Went to UNDISTURBED/OBSERVING, but quickly un-did that because Robert said so.
• 20:38 Lockloss.  When coming back up, Diag_main mentioned X-arm fiber polarization above 20%
  • Stuck in Locking ARMS Green with a "waiting for arms to settle".  ALS X was stuck around 0.8...touched it up to 0.98 by tweaking the TMSX in yaw & this got us to move on.
  • Sheila just happened to walk in and I mentioned this to her, and she said we should just change the value Guardian waits for here (0.9 something) since we have lowered the laser power.
• 21:08 Sheila is now taking H1 to look at IMC WFS.
• 22:42 - 22:46 Running A2L (...LHO.py)
• 22:47 - Running A2L (...PR2.py)
• 22:4 - Running A2L (...PR3.py)
• PI Mode 28 rung up.  Took phase from 180 and eventually to 110 & it's looking good.
• Handing off a locked at NLN H1 to Travis (range is hovering around 73Mpc).
• Oh, we lost lock during acquisition earlier due to the Beam Diverters (this is related to what PDs we were using between acquisition & low noise).  To get past this, I:
  • went to NOISE_TUNINGS
  • Go to MANUAL
  • Select REDUCE_RF9_MODULATION_DEPTH (skipping Close Beam Diverters step)
  • Then hit AUTO after the above step is green/complete

NOTE:  Bubba would like a rough idea of # of people here between now and tomorrow. (we had 2-3 people most of the day)