TITLE: 08/17 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 148Mpc
INCOMING OPERATOR: Ryan C
SHIFT SUMMARY:
Lockloss 23:29 UTC
https://ldas-jobs.ligo-wa.caltech.edu/~lockloss/index.cgi?event=1376263782

A change was made to ISC_LOCK that will lead to an SDF Diff that will need to be accepted.

Trouble locking DRMI even after PRMI
Ran Initial Alignment.

Elevated Dust levels in Optics labs again.

locking process started at 00:31 UTC
1:16 UTC made it to NOMINAL_LOW_NOISE
1:35 UTC Made it to Observing

lockloss from NLN @ 2:22 UTC almost certainly because of a Pi ring up and a series of Locklosses at LOWNOISE_LENGTH_CONTROL Edit*: It wasn not certain at all infact.

relocking went smoothly until, Lost lock at LOWNOISE_LENGTH_CONTROL @ 3:11 UTC

relocking went through PRMI and took a while, Lost lock at LOWNOISE_LENGTH_CONTROL again at @ 4:14 UTC

I have lost lock twice at LOWNOISE_LENGTH_CONTROL tonight. I am concerned that it may be due to  alog https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=72262

Which is where there is a change to that state.
The counter argument to this is that I went past this earlier in my first lock of the night. Which was AFTER ISC_LOCK was loaded.
I'm doing an Initial Alignment again tonight to see if it's just poorly aligned instead, and to buy my self sometime to investigate.
I posted my findings in matter most and in the lock loss alog above . Then Called in the Commishoners to see if there was anything else I should look at.
Lines 5471 , 5472 were changed, and with the help of Danielle and Jenne pointing to line 5488 for another change that was reverted on ISC_LOCK.py, Locking went well from LOWNOISE_LENGTH_CONTROL all the way up to NLN

See comments in https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=72262 for Specifics

Made it to NOMINAL_LOW_NOISE @ 5:58 UTC
Made it to Observing @ 6:02 UTC

LOG: empty