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Reports until 15:58, Wednesday 15 June 2016
LHO General
corey.gray@LIGO.ORG - posted 15:58, Wednesday 15 June 2016 (27750)
DAY Ops Summary

Wanted to get H1 to atleast DRMI before today's Press Conference, so jumped into locking first thing this morning, but no DRMI locks, and PRMI would not stay lock for more than a second, so opted for an Initial Alignment, but it wasn't trivial.  A few notes from locking & alignment:

  1. Noticed an unlabeled Red Box on the OPS Overview at EY (PVinfo showed me it was the BIO for ETMy).  Ed showed me what this comes from (on the ETMy SUS screen's L2 stage all the way on the right, an LR box was RED for the BIO MON.  So, for the "RMS WD RESET", I changed the 1.0 to 0.0 and then back again to 1.0.  This cleared it up.
  2. During the alignment, the IMC had issues:  1) Wasn't locking, 2) AOM Diffracted Power was a bit high over 12% (later found out this was ok), & 3) Cheryl noticed IO WFS YAW & PIT outmons were high.  For the latter, Cheryl hit "CH" for the YAW DOF filter banks (& also PIT).
    1. At this point, she noticed the PZTs were off, so she watched the MC2 Trans & video of MC REFL and walked the PZTs until she got the IMC locking.  This eventually brought back IMC locking
  3. On PRM_ALIGN, the ASC signals never converged after a few minutes, so went DOWN & back to PRM_ALIGN & it was fine.
  4. Also had issue with SRC_ALIGN, as noted yesterday, where once SRC_ALIGN_OFFLOADED looks to be complete, Guardian ramps the PSL down normally, but lately, it's been ramping it back up!  (anyway, took ALIGN_IFO node to DOWN & called it good).

Another IFO Note:  After the alignment, Krishna mentioned conditions were quiet so, we took the ITMs to the 90 blends and NO Sensor Correction.

BSC ISI Guardian Note:

Krishna noticed that Sensor Correction was turned off for ETMy & ETMx ISI's at around 1am last night by taking a gain from 1 to 0 by hand.  We want to get in the habit of not doing this (because Guardian does not monitor these gain channels -at the moment-), and use our fancy new Guardian medm (sitemap/O-1/ISI Blend Filters.adl)

Daily activity log attached as pdf.

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