Jenne, Sheila, Minhyo, KarMeng

• HAM3 -Y -X viewport black glass guillotine removed 16:04 UTC, quiet time until 16:11 UTC to see how the 48Hz scatter looked before we started.
• new DHARD P boost engaged at 16:13 UTC 16:18 UTC
• Then we started to move PR3 in lock with the move_PR2_spot_position guardian state moving sliders on PR2, IM4 and PRM.  We lost lock after moving about 1 urad PR3 -yaw in full lock. 
• We then looked at doing the move with just the green arms locked, thinking that we might be able to move the HAM3 POP/ALS pico to keep the green beat notes good to track the pointing onto POP.  This didn't work well because we seem to be starting with the beam not well aligned onto the TRX diode, so we fell off that diode quickly.
• We then decided to leave the green arms locked with the ASC engaged at 2W to move the PR2 spot there. This worked well but slowly, Jenne moved PR3 yaw while letting the guardian state PR2_SPOTMOVE move PR2, PRM and IM4.  Roughly every -1 urad of PR3 yaw, Jenne moved PICO_A_MOTOR_8_X by -50 counts to bring the ALS trx,  comm and diff beatnotes, and POP18 and POP90 back.  After ~15 urad, we noticed that we were starting to fall off POPAIR_B, and Jenne moved PR3 pitch to cancel the cross coupling due to the yaw move.  This restored the powers on POPAIR B to what they were before we started.  The attached screenshot shows the powers changing as PR3 pitch and yaw and the pico were adjusted.  The second attached screenshot shows that the arm transmissions increased slightly during this move, although it's hard to say if that's thermal or a result of reducing clipping on PR2.  This moved ASC POP A yaw by 0.4 urad, so if we need to continue several times further than this, as we suspect, we will need to pico POP A.
• We stopped after having move PR3 -36urad in yaw, an hour before the end of the commissioning time.  We've unlocked the IFO to run an initial alignment and see that we can relock.
• THe PRC optics were verry misliagned when we started initial alignment so we ran wfsreliefpast.py 1399917552 to restore them to the location they were when we were locked at 2W and the ASC was on.  This restored the input alignment to the X arm, but also moved the arm optics, so we started over with green arm alignment, the whole alignment went smoothly after this.
• In our first locking attempt we locked DRMI without issue and let the ASC run, which uses the POP A QPD, but we didn't think about how this had shifted because of our PR3 move, so DRMI ASC shifted our vertex alignments quite a bit compared to what initial alignment did.  We restored everything to before the DRMI alignment.
• When PRMI ASC came on we saw osccialtions at around 23Hz in DRMI LSC.  We reduced the MICH gain from 3.2 to 2.8 and didn't have this oscillation.  We were then able to run PRMI ASC and DRMI ASC without the PRC1 (POP QPD) loop.
• This allowed the FULL IFO ASC to engage, although there was a large transient along the way.  Once everything was converged, the POPA QPD was at -0.187 PIT and 0.797 YAW. We powered up without an issue.
• When we got to low noise, a large broadband noise showed up in DARM which is not coherence with LSC, ASC or jitter (screenshot attached).  I put the black glass guillotine back, this didn't help. 
• Ran SCAN_ALIGNMENT for the squeezer, results here: here
• Jenne remeasured the spot position on PR2, we are closer to center in yaw and no vertical move. Minhyo ran CalcSpotPos.py, and says that the PR2 Y2L gain is now -6.75 which means that alpha is -0.32215 (see alog 31402) and the spot position is at -13.595mm. 
• Jenne also did a HAM3 excitation, which does not come close to explaining the extra noise.
• We've been sitting here with the large noise from 20:37 UTC to 21:07 UTC
• We moved another -28 urad on PR3 in full lock while pico'ing for LSC POP.
• In parallel we were looking at why we had poor squeezing, and Anamaria suggested turning off squeezing. The squeezer is responsible for the loarge low frequency noise after the PR3 move. We tried running the alignment script and SQZ angle script again, they ran well and found a local max for alignment, but this seems not to be as good of an alignment as before the PR3 move.  We may need to walk the squeezer beam in full lock to restore the same level of high frequency squeezing that we had before.  I also checked the filter cavity detuning, by changing the detuning we can make this low frequency noise worse.
• We lost lock and have started a manual intial alignment, we had to move IM4 quite a lot, it seems that the PR2 spot move script moves IM sliders too much. 
• After running the green arms alignments Jenne touched the HAM3 pico to increase the ALS beatnotes, a smaller move than the earlier ones.
• We did some trending and resetting according to top mass osems for IM4 + PR2, then initial alignment went smoothly.

The POP QPD is still not used in DRMI ASC.