TITLE: 11/28 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Corrective Maintenance
INCOMING OPERATOR: TJ
SHIFT SUMMARY: Still unlocked from SEIB3 computer crash. Now looking better. Wind high.
LOG:
- 23:16 Lockloss see alog 53530
- 01:19 Robert out to EY and EX
- 02:21 Observing
- 02:50 SEIB3 computer crashed, (we stayed in observing!)
- 02:56 Dave remotely took it out of the Dolphin network.
- 02:26 Lockloss
- Lots of the IFO didn't realize it was unlocked yet so we turned LSC controls off.
- 03:11 SEIB3 is back online (computer restarted)
- 03:20 Untripped ITMX watchdogs (HEPI and ISI 1 & 2)
- First requested the DAMPED STATE, making sure everything was okay before requesting FULLY_ISOLATED
- 03:24 SEI_CONF changed to RECOVER_SC before back to WINDY (this was done as requested by a user message)
- 03:40 Manually opened green shutters
- Interesting that PREP_FOR_LOCKING doesn't check that these are closed.
- 03:46 in LOCKING_ARMS_GREEN, WFS did opposite of expected and made ALS worse! Had to restore offsets a few times.
- 04:29 Started Inital Alignment
- 05:21 Stalled in ALIGN_IFO AQUIRE_PRX. Called Jenne, realized we had left the LSC control filter bank off.
- 05:26 Skipped INITIAL ALIGN from step OFFLOADEDING_MICH_BRIGHT to SRC_ALIGNING as got stuck.
- 05:31 Initial Complete
- 08:04 Leaving IFO with TJ after 14 locklosses finally looking like it's about to lock. Wind still at 20-30mph.