TITLE: 12/07 [OWL Shift]: 08:00-16:00 UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Unlocked
OUTGOING OPERATOR: Cheryl
QUICK SUMMARY:

Cheryl has been having trouble locking MICH in initial alignment. Two earthquakes have just hit as I came on shift:

5.6
34km NW of Illapel, Chile
2015-12-07 07:51:11 UTC 48.4 km deep

7.2
109km W of Murghob, Tajikistan
2015-12-07 07:50:07 UTC 28.7 km deep

A number of watchdogs have begun to trip.

From the cameras:
The lights are off in the LVEA.
The lights are off in the PSL enclosure.
I can not tell if the lights are on or off at mid X and mid Y.
The lights are off at end X.
The lights are off at end Y.

The 0.03 - 0.1 Hz (earthquake) seismic band has so far risen to ~ 5 um/s with the earthquakes.
The 0.1 - 0.3 Hz (microseism) seismic band is above the 90 percentile and has risen above .5 um/s with the earthquakes.

The winds are between 0 and 20 mph.

The ISI blends are on the nominal 45 mHz configuration.

From pinging:
CDS WAP is off at the LVEA.
CDS WAP is on at mid X.
CDS WAP is on at mid Y.
CDS WAP is off at end X.
CDS WAP is off at end Y.

Ops Eve Summary: 00:01-08:00UTC (16:00-23:59PT)

State of H1: unlcoked

Incoming Operator: Patrick Thomas

Helpers: Keita, Vern, Mike

Details:

• H1 has been unlocked for about 12 hours.
• Corey did an Initial Alignment, and I tried locking
• with no locking, I decided to do an Initial Alignment
• no change in locking, MICH DARK would not lock
• looked for other things, found a behavior on BSC2 ISI that appears to be different from behvior two days ago, on 12/5
• still not sure that BSC2 ISI anything related to not locking MICH DARK

7:00UTC, no locking

I decided to do an Initial alignment and look more closely that usual, and again made it to MICH DARK which isn't locking.

I looked at the BSC2/BS ISI and saw that when MICH DARK is trying to lock, the ISI stage 2 is dark red on the ST2_BLRMS monitors.

Plots attached show MICH DARK trying to lock and not trying to lock.

Maybe this is normal, but lots of shaking is the symptom of the MICH DARK not locking, and ther BLRMS readbacks are showing a lot of shaking in the BSC2/BS ISI.

State of H1: 9+ hours, no locks past DRMI

Current issues:

• During initial alignment, I could not get MICH_DARK to lock.
• I called Keita, who logged in to take a look.
• Alignment is good, so it's not clear why DARK_MICH isn't locking.
• I reloaded and ran each guardian in the ISC screen through it's INIT state, hoping to find that that cleared up the issue with DARK MICH, but it didn't.
• Attached is a plot of ASAIR A RF45 Q ERR and MICH out showing ther signal running away.
• Additional assistance is being sought.

TITLE:  12/6 DAY Shift:  16:00-00:00UTC (08:00-16:00PDT), all times posted in UTC     

STATE of H1:   Lock Acquitistion

Incoming Operator:  Cheryl

Support:  None

Quick Summary:

Eerily similar to my shift yesterday:  First half H1 locked, and then 2nd half unlocked.  This time there was winds which forced me to not attempt locking.  A good note (highlighted in GREEN below) is that I was able to (1) get through an alignment, (2) have decent looking DRMI locking/flashing, & (3) able to lock PRMI (although it wasn't needed since alignment still looked decent).  Still NLN elludes me (seems like I've not taken H1 to NLN since early October!!)  :(

Shift Log:

• 16:48 LY Beam Manifold Ion Pump went RED on overview (no alarms)
• 19:15 - 22:30 wind avg speeds reach above 20mph.
• 20:20  Lockloss (winds picking up & useism high as range died at the end of that lock)
• 22:30 - 22:50 Initial Alignment.  Notes Below:
  • ALSy was better, but had to offload by hand (i.e. tweak pit & yaw of ETMy)
  • Input Align:  X-arm finally locked!  (because seismically quieter?).  Offloaded IM4 & PR2...but saw that IM4 seemed to get pitch & yaw values after they were offloaded to zero.   (is that normal?  I did not offload by hand)
  • SRC Broke lock after 2min while waiting for control signals to converge; but finally able to run OFFLOAD
  • Alignment went well!
• 22:50 Lock acquisition:  finally made it past CHECK_IR!  DRMI AS port flashing look GOOD with decent flashing for POP 18 & 90.  But after 11min, Guardian went DOWN.  :-/  Looks like it's due to ETMx ringing up (had a peak to peak of 10,000nm).  Cleared this up by switching to the 90mHz Blend briefly for the X-axis, and then switching back to the 45mHz Blend.  
• FIND_IR takes on the order of 2-3min
• 23:33 Attempt Lock PRMI (after 4min PRMI locked!).  Only made minor changes to BS/PRM:  POP18 was at 124 & POP90 was at 190.  Went back to DRMI locking....actually, not clear of how to transition back.  Do I take ISC LOCK to AUTO and then request DRMI?  I was a little confused.  about that.
• It looked like a PRMI locked, and then HAM5 ISI & SRM WD tripped....did I not restore DRMI locking correctly??
• Resetting WDs
• PRMI relocked again (!).  Not sure if I recovered from PRMI....anyway, Cheryl is starting from scratch with this alignment (hopefully it locks up with this pesky useism!)