Besides some discussions about OS, below there is a summury of activities:

- Y-arm road works (ask Ski for more details)
- End-Y works:
    Hugh
    Richard
- Rick gave to UTB students a LVEA tour
- Several DAQ restarts (ask Dave)
~ 11:30 Dale tour at the control room

Cheers

pablo

Noticed system pressure below min value when left drying tower regenerating -> Found fouled valve seat on left tower's 3/4" Y-pattern check valve -> Replaced "flapper" mechanism -> Reusing existing housing and "flapper" hinge pin

Phase 3b top mass (M1-M1) damped and undamped transfer functions on the beamsplitter under vaccum have been measured two days ago with the ISI floating, using the automated matlab script.

The attached pdf are showing in order the results for :

(1) Comparison between M1-M1 measured damped  (red) and modeled (blue) transfer function for the 6 DOF

(2) Comparison between M1-M1 measured undamped  (red) and modeled (blue) transfer function for the 6 DOF

(3) Comparison between M1-M1 phase 3a undamped (in air april 22nd 2013, orange curve), phase 3b undamped (in vacuum July 30th 2013, blue curve), phase 3b damped (in vacuum July 30th 2013, pink curve), and undamped modeled transfer function (in blue)

(4) Comparison between M1-M1 vertical DOF hanford beamsplitter phase 3b (in vacuum, July 30th 2013, orange curve), and livingston beamsplitter phase 3a (in air, April 16th 2013 black curve) and undamped modeled transfer function (in blue)

Most of measurements are in good agreement with the model. Although, the 1.70 Hz longitudinal mode cross coupling into the vertical degree of freedom, cf 3rd page of (1) and (2)

When looking at the comparison between phase 3a and phase 3b for the vertical DOF (3rd page of (3)), it appears that the cross coupling was not present in April when the suspension was in air.

Livingston beamsplitter seems to also have cross couplings in their vertical degree of freedom, but with roll and pitch mode instead of longitudinal (cf (4))

Due to a longstanding bug in a script (fixed on 6/28/13), there were a bunch of pdf files in ^/trunk/QUAD/Common/Data in the SUS SVN with names starting "allhstss...". I did svn mv commands on all of them to change the prefix to "allquads".

(Cheryl, Corey, Keita)

The TMS Telescope & TMS In-Vacuum ISC Table were connected to each other today.  It's a tight fit, but we were able to make the connection no worse for wear.  After these were mated, we installed Tooling to suspend the system.  While trying to install bars which mimic the suspension wires, we noticed that the threaded holes for a part (D1200310, Spreader Bar) of the ISC Table were bad (looks like the machinist didn't completely tap the hole and so the threads on one end of the hole were too tight for a bolt).  We were able to remove the part, and will repair or fix the part, and then re-install it.

Started to set up for alignment with the green laser .

Just started a measurement on ISI-HAM3 (on the computer 'opsws0' in the control room). Should be done in the morning around 9am.

[K. Izumi, J. Kissel, J. Rollins, S. Biscans, A. Pele]

We are in the middle transporting over LLO IMC stuff, but are calling it a night. 
We have installed new SUS-MC2 filters (but not committed to the repo yet) and changed the LOCK gains, but no other filter banks have changed.
We're in the process of updating the up and down scripts.

Thus the mode cleaner remains unlocked. 

State of the IFO this evening:

All suspensions that are on are damped at the same level they've been for the past two weeks.
HPI BS -- OFF, floating
ISI BS -- OFF, floating

HPI ITMY -- LOCKED
ISI ITMY -- Isolated Level 2

HPI HAM2 -- OFF, floating
ISI HAM2 -- Isolated Level 3

HPI HAM3 -- OFF, floating
Sebastian is running measurements on HAM3 ISI

Greg Scott Tyler & Hugh

A bit more fluid drained, total of about 10 liters so far.  May not get much more til other breaches accessed.

Moved all four Horizontal Actuators to BSC10; first Vertical Actuator is out.  Should finish everything tomorrow.  Welder will be here for tubing changes tomorrow too.

Travis, Betsy, Mark

Today, we continued on the ETMx monolithic suspension assembly.  We fixed a few course misalignments, plumbed in all 12 of the top stage BOSEMs, and launched damping loops.  Mark is now doing a few checks of the BOSEM actuation as well as taking a sneak peek at the resonances to check for rubbing before we invoke IAS for fine alignment sometime tomorrow.

QDP80 roughing the vertex volume. For Mike Z.

Volume pumped would be the Y Beam Manifold + HAM2,3 + BSC1,2.

- Rick to visit the roof, 10:30 am.
- Betsy and Travis at X-End, SUS work @ ETMX.
- Sheila to H1-PSL enclosure, dust monitor on hand.
- Filiberto to Y-End, disassembly of racks.
- Hugh and Greg, Y-End station, HEPI movement.
- Dave and Jim, 1 DAQ reboot, cheers!.

Since the EX system was added to the DAQ we have been seeing two problems in the frame:

• all fast channels have been incorrectly marked with dataValid=1
• some DUST slow channels have been corrupted

Alex found that there is a limit on the number of DCUs acquired by the DAQ, the limit is 85. We had 94 DCUs in the DAQ.

We removed 16 DCUs from the DAQ this afternoon, and both problems have gone away (Patrick verified all DUST channels have good data).

Alex will test a fix to allow the full complement of DCUs in the DAQ next week. For now the systems listed below are out of the DAQ:

h1iopsusauxh56, h1susauxh56

h1iopsusquadtst, h1susquadtst

h1iopsusbstst, h1susbstst

h1iopseitst, h1isitst

h1iopsusex, h1iopseiex, h1iopiscex, h1iopsusauxex

h1iopsusey, h1iopseiey, h1iopiscey, h1iopsusuxey

Jeff K pointed out that the button to go to the IM3 WD screen from SUS_CUST_HAUX_DACKILL screen was broken (it gave the right screen but with lots of white channels). It turned out that I had missed updating an args="..." line in the recent cleanup, so I fixed it and commited the new file.

[J. Kissel, A. Pele]

We've launched acceptance transfer function measurements on H1 SUS BS, using a matlab session on operator1 computer. Measurement start 30-Jul-2013 18:23:34 PDT. We expect it to take 12 (!!) hours, so it should finish 31-Jul-2013 06:30 PDT.

I measured the ETMX OL values

prettyOSEMgains('H1','ETMX')

M0F1 19894 1.508  -9947
M0F2 29453 1.019 -14727
M0F3 30661 0.978 -15330
M0LF 24512 1.224 -12256
M0RT 24724 1.213 -12362
M0SD 21784 1.377 -10892
R0F1 28922 1.037 -14461
R0F2 23013 1.304 -11507
R0F3 25716 1.167 -12858
R0LF 26662 1.125 -13331
R0RT 24388 1.230 -12194
R0SD 21961 1.366 -10980
L1UL 24267 1.236 -12133
L1LL 26538 1.130 -13269
L1UR 24545 1.222 -12273
L1LR 26259 1.142 -13130
L2UL 17935 1.673  -8967
L2LL 18726 1.602  -9363
L2UR 25124 1.194 -12562
L2LR 25518 1.176 -12759