TITLE: 07/23 Owl Shift 07:00 – 15:00 (00:00-08:00), all times posted in UTC
STATE of H1: Observing
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Locked early in the shift, noticed ITMX 13 violin mode was in the ~4.5 region but the gain was already set to its nominal state (0). Dropped out of Observing a couple times due to TCS ITMY CO2 laser losing lock (air bubble in chiller?). Then I lost lock switching to EQ mode for a 6.0 near New Zealand, and re-locked ~2 hours later.
LOG:
07:00 (00:00) Start of shift
08:00 (01:00) Locked and going into Observing
08:53 (01:53) Dropped briefly out of Observing to try and damp ITMX 13 before realizing it matched its lsc_params gain setting of 0.
09:46 (02:46) Dropped out of Observing, not entirely sure why. Only notification was for violin damping, but that has been going on (within acceptable ranges) for hours. TCS ITMY CO2 laser unlocked at 09:44 (02:44).
10:15 (03:15) Dropped out of Observing with USERMSG: “Waiting for TCS_ITMY_CO2”. Looking at the TCS_ITMY_CO2 log shows the laser unlocked at 10:14 (03:14). Given Corey’s post from yesterday (50702), I would imagine a new air bubble has formed in the TCSY chiller.
11:39 (04:39) Lockloss when trying to change SEI_CONFIG to EARTH_QUAKE. Despite the Nom vs. EQ SC outputs looking okay, it seems this caused the lockloss.
12:15 (05:15) As far as I can tell, FSS unlocked during ENGAGE_ASC_FOR_FULL_IFO, causing things to swing around until I took the IFO to DOWN. Waiting for FSS to relock.
13:12 (06:12) At NLN, going to Observing. Waiting for some high violin modes to ring down.
14:08 (07:08) Chris moving forklift to OSB parking lot
14:45 (07:45) Starting PEM injections
14:46 (07:46) Robert to E-bay -- turn wifi on
14:49 (07:49) Robert back from E-bay
14:55 (07:55) Bubba, Chris to EX, MX, MY, EY -- lubricating fans
14:55 (07:55) HFD to EY
15:00 (08:00) End of shift