TITLE: 10/01 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: 
INCOMING OPERATOR: Ed M.
SHIFT SUMMARY:

Guardian was back, but so was a troublesome ITMy Bounce Mode.  Currently leaving H1 DOWN in an attempt to let it ring down.
LOG:

• Lock Attempt #1 (15:49-16:14):  Dropped out at COIL Drivers (also had OMC DCPD Saturation):
  • Clearly saw the Power Recycling gain ring up a couple of seconds before lock loss
  • Also, ASC_SRC Yaw was drifting down a few minutes prior to lockloss.
  • Power Recycling gain & POP18 both were trending down 
  • Stay at LOWNOISE_ASC next time. 
• 16:40:  Went to fill TCSy chiller.
• Lock Attempt #2 (16:15-17:04):  Dropped while going through the LOWNOISE_ASC step (this was after I stayed at ADJUST_POWER for a while after going to 50W.
  • During this lock:  PI Mode 18 rung up (not sure Guardian took care of this or if my gain change from -120 to -60 fixed, but it did go down.)
  • Guardian Error/Note:  "No Path From DC Readout to Adjust Power."  In the Guardian "graph", ADJUST_POWER is a state all on its own (not in flow diagram) on the bottom of the "graph".  Maybe it's meant to be that way for custom adjusting?
• Lock Attempt #3 (17:04-  ):  Stefan Arrives!
  • Stefan noticed some ASC CHARD_B Pit & Yaw Inputs (H1:ASC-CHARD_[P or Y]_B_SW1R, at ASC Overview -> CHARD Blend) were OFF (probably a remanant from yesterday's power glitch).  These were ACCEPTED on the ASC SDF Table.
• ITMy Bounce Mode Rung up and could not be damped out (see Stefan's alog).  Took H1 to the DOWN state for a few hours.  (waiting for Stefan to call back after he talks with Kissel/Sheila)
• ~1pm Photographer from Science Mag on-site (probably outside until late evening for X-arm exterior shot).
• PSL has been having DUST alarms for the last few hours....probably coincident with higher winds (over 20mph).  The LVEA also crept up, but interestingly not as high as inside the PSL.  (see attached).