TITLE: 06/25 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 137Mpc
SHIFT SUMMARY:
Lock#1: (08904-0914)
- 0806 Working on green arms flashes while in GREEN ARMS MANUAL: X-arm easy, Y-arm not so much.
- Basically needed to wait an hour for the earth to calm down to allow our touchier Y-arm to lock (in aggressively trying to lock Yarm at first, one would see the Yarm power slowly oscillate due to seismic noise from the EQ. So it was hopeless to try locking until the M6 EQs waves subsided.
- 0847 Finally Y-arm made it to OFFLOADED (but still locklosses)....going to take back to UNLOCKED & give it 20min
- 0906 Y-arm green looking more stable, and proceed with ISC LOCK at 0909.
- 0915 Lockloss at Acquire DRMI
Lock #2: (0918-0920) Lockloss at FIND IR
Lock #3: (0921-1017) Tried PRMI, but could not lock (even after trying to fix misalignments seen in pitch flashes).
- Went to CHECK MICH FRINGES, and this fixed the pitch misalignment. For 2nd attempt at PRMI, it locked within 3min (I tweaked PRM a little in pitch & then let guardian finish PRMI ASC).
- For DRMI, flashes were decent, but could see yaw misalignment, so made small tweaks to SRM in yaw & it locked within a min after tweaks.
- 1017 Lockloss at TRANSITION FROM ETMX (where locklosstool [1371723544] lists "ADS Excursion")
- NOTE: For Austin's Lockloss at TRANSITION FROM ETMX [1371696495] there was NO listing of "ADS Excursion"; but it was tagged with "BOARD SAT".
Lock #4: (1019-1121)
- No intervening, until a hold at MAX POWER (to give H1 a few extra min before making way to TRANSITION FROM ETMX.
- Held at a few late stages (similar to what Austin told me he did).
- 1121 back to OBSERVING
- (I guess 4th time was the charm for me, too!) ;)
LOG:
- 0730 See eq motion on Tidal FOM's SRM & on Picket Fence
- 0737 Verbal of Incoming Earthquake (Tonga M6.0)--->Seismon says the R3.5 Wave is about 22min away (w/ P & S waves already having rolled through).
- 0740 EQ Mode automatically activated (and now see bigger seismic signal on tidal & picket fence)
- 0743 Also seeing L1 went down (Seismon lists the EQ about 1250miles closer to H1)
- 0758 picket fence yellow
- 0759 orange
- 802 two oranges
- 759 ASC signals ramping up
- 800 Tidals PRM & SRM get bigger, see glitch on DARM
- 0803 LOCKLOSS (about at the time of the R3.5 wave arrival)
- 1153-1209: Y-arm drive to catch sunrise at "lunch" & Warehouse check---noticed doors flashing on Access computer (corey)