We started the h1lsc0 front end computer to support the mode cleaner commissioning. I had made the IOP model previously, and we installed the LLO lsc user model. We did not install the two other models for this frontend (OMC1 and OMC2).

We took the l1lsc model and converted it to the h1lsc model by doing the following:

• standard L1 to H1 name conversions
• removed the MC1 and MC3 output IPC parts, just kept the MC2 part
• removed the input IPC part (gets data from the ASC)
• renamed the PSL block on the top level to LSCPSL

The last part was interesting. The PSL part in the LSC model creates H1:PSL-FSS_RFPD_DC channels, which prevented the LHO DAQ from running due to duplicate channels with the H1 PSL FSS model. Later we will remove these channels from the PSL, but for now I have renamed the LSC channels to H1:LSCPSL-FSS_RFPD_DC to allow the DAQ to run.

The DAQ was reconfigued to add the following systems

• H1ITMY (EDCU only)
• H1IOPLSC0
• H1LSC
• H1IOPSUSAUXH2
• H1SUSAUXH2

Scott & Ed,
The two west side Expansion Bellows were installed today.  Safety meeting cut us just too short to do the last bellows.  Tomorrow we'll get the last one on, complete the torquing and protecting.  We'll do one last level shot & adjust and the Chamber will be ready for at least one door, Septum blank installs followed by the second door.

Activities for today:

- John W. road inspection
- Richard M. to YBM, work on power supply for BS FE.
- Kyle R. to X-End.
- Praxair LN2 Delivery to CP1.
- Michael R, turned laser back on.
- Kiwamu went into LVEA to remove yellow protective covers at HAM02, see WP #3641.
- Laser Safety training
- LVEA was transitioned to LASER HAZARD.
 

Recent plot of the ENDY Pumpdown.

Also - see alog from Sept 18 

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=4229

Status as of this morning:

The Y arm is in good shape - although not cleaned up. As a result of the debris left behind the road is slippery and drivers should exercise caution.  Praxair should be able to get to the YEND or YMID with no problems.

The baling crew has moved to the X arm and at 10:00 am they were ~200 meters from the End station and moving towards the corner. The road between the corner and the XMID is passable for now. If we get significant wind it may not be.

The road between the XMID and the XEND is NOT passable as the single lane that was opened has blown in again.

Photos show the condition near the XMID  - the passable portion.

After the 2.6.1 upgrade, I logged in to confirm that all installed suspensions (and those not installed but with running models) are running appropriately for the condition of their respective suspension. The only thing I'm concerned about is the BS TST system, which shows that the damping loops, though not unstable, add a significant amount of noise when closed (as determined by the speedometers). I don't think this is a flaw of the upgrade, but it something into which we should look further.

Here's a detailed summary:

          Summary    Model Running  Watchdogs   OSEMs Centered  OSEM OL Compensation  Coil Driver BIO  Damping Loops       SEI/SUS Exchange          OSEM Calibration   Offset Calibration  OpLev Calibration
          -------    -------------  ---------   --------------  --------------------  ---------------  -------------       ----------------          ----------------   ------------------  -----------------
ETMY      GREAT          Yes         Armed      Good Enough         Installed         COIL & State 1    M0 & R0 ON         ON and functional          NOT Installed         Installed           Installed
ITMY      GOOD           Yes         Armed      Good Enough         Installed         COIL & State 1    M0 & R0 ON     Installed but not Receiving    NOT Installed         Installed           Installed 
TMSY      GOOD           Yes         Armed      Good Enough         Installed         COIL & State 1      M1 ON        Receiving but not Installed    NOT Installed       NOT Installed           N/A

QUAD TST  OK             Yes        (No suspension attached)           N/A            COIL & State 1       OFF                    N/A                 NOT Installed       NOT Installed           N/A
BS TST    BAD            Yes         Armed      Excellent           Installed         COIL & State 1  M1 ADDS NOISE               N/A                 NOT Installed       NOT Installed           N/A

MC1       GOOD           Yes         Armed      Good Enough         Installed         COIL & State 1      M1 ON        Receiving but not Installed    NOT Installed       NOT Installed           N/A       
MC2       GOOD           Yes         Armed      Excellent           Installed         COIL & State 1      M1 ON        Receiving but not Installed    NOT Installed       NOT Installed           N/A 
MC3       GOOD           Yes         Armed      Excellent           Installed         COIL & State 1      M1 ON        Receiving but not Installed    NOT Installed       NOT Installed           N/A

PRM       NOT READY      Yes        (No suspension attached)   No infrastructure installed
PR2       GREAT          Yes         Armed      Excellent           Installed         COIL & State 1      M1 ON            ON and functional          NOT Installed         Installed             N/A
PR3       NOT READY      Yes        (No suspension attached)   No infrastructure installed

SR2       NOT READY      Yes        (No suspension attached)   No infrastructure installed


The remaining suspensions (SR3, SRM, ITMX, ETMX, OMC) do not yet have models running.

WP3636

Today we upgraded the LHO RGC system to tag2.6.1. Yesterday we did as much preparation work as could be done without disrupting the system. At 10am today (Tuesday 8th Jan) we started the install process. We kept one frame writer up and running for as long as possible to minimize the gap in the trends for the Vacuum and FMCS slow channels.

We closely followed the wiki documents written by Keith Thorne and Alex Ivanov when they upgraded the LLO system in December. By noon we powered down all the front ends and took the DAQ down for its upgrade. After a slight problem with the data streaming from the front ends to the DAQ, by 3:20pm we had all the front ends and DAQ back online.

We did some quick tests with dataviewer and dtt to get archived data, open testpoints and ran excitations. Everyone should restart their systems and check that everything looks ok.

Tomorrow we will rebuild the SUS and ISI models for BSC1 adding back the missing IPC and DAQ channels to verify the RCG limits have been removed.

Zack Slim Ed & Scott
The crew got the second Support Tube installed early morning and the Support Table was bolted down, and leveled by lunch.  The Support Tubes were strapped down after lunch and the first bellows was installed by days end.  SN 085 on NE.  The flanges are not torqued yet but soon enough.
A few more photos for the archives.

A little after the fact, but I locked BSC1 at noon to allow Travis to install a missing strut on the quad. The ISI will remain in this state until computer resources are available for us to rebalance.

Tuesday Maintenance:

- Upgrades that took all of the front ends down for most of the day - Dave and Jim
- LN2 delivered to CP3, and it's back below alarm level at 98%
- the usual suspects for rugs, water, etc.

Things to recall:
- PSL laser is still down for RF wiring, expected back tomorrow
- tumbleweeds may be a problem for getting to EX

Alarms:
- h1oaf is white, it's off now, may or may not be white tomorrow, check with Dave
- ITMY and SEIB1 watchdogs are red
- PSL is red due to the laser beibg off

[Stuart A, Jeff B]

Jeff is ready to commence taking transfer functions on the triple test-stand and asked if all the recently updated automated Matlab testing scripts had been deployed. I therefore logged on remotely and svn'd up the following directories:-

/ligo3/svncommon/SusSVN/sus/trunk/Common
/ligo3/svncommon/SusSVN/sus/trunk/HSTS
/ligo3/svncommon/SusSVN/sus/trunk/HLTS

and just for good measure...

/ligo3/svncommon/SusSVN/sus/trunk/BSFM
/ligo3/svncommon/SusSVN/sus/trunk/QUAD

Earlier today I committed (rev 3913) of the Schroeder Phase Tools "Matlab_TFs.m" function, which fixed the argument validation for X1 and X2 triple test-stands, allowing HSTS and HLTS optics to be used. This was tested at LLO and has now also been tested and rolled-out on the LHO triple test-stand.

An example, for PR3 (HLTS), was added to the end of the "LHO_Matlab_TFs.m" script, demonstrating how to automate taking sequential M1-M1 undamped and undamped Matlab TFs on the LHO (X1) test-stand.

Attached are pictures of witness plates I installed in HAM2 before pumpdown.  There are 4" silicon wafers and 1" optics in the chamber, and most are on stage-0 of the ISI or in the beam tube, one 4" wafer is on the HAM2 table surface, near the North edge of the table.

#62 = NW corner of stage-0, showing three 1" optics and one 4" silicon wafer
#63 = beam tube North of HAM2 ISI, showing one 4" silicon wafer
#67 = W side of stage-0, showing one 4" silicon wafer
#70 = beam tube South of HAM2 ISI, showing one 4" silicon wafer
#71 = SW corner of stage-0, showing one 4" silicon wafer
#74 = HAM2 floor, under stage-0, showing two 4" silicon wafers

Not shown, one 4" wafer on the HAM2 table.


- Total number of 1" optics in chamber = 3.

- Total number of 4" wafers in chamber = 8.

[Paul F. and Chris M.]

Today we modified the coil driver for the MC2 M2 stage per ECR E1200931 and described in Jeff Kissel's L1200226.  The serial number of the triple acquisition driver is S1100023.  This gives the middle stage of MC2 a factor of 10 boost in range at low frequencies which is needed for long term (> 5 mins) locking of the input mode cleaner.  

Attached is a picture showing the shorts added to channel 1 between resistors R11 & R27 and R10 &R21.  Also attached is a before and after transfer fucntion of each channel measured in the acquisition state.  

Scott Ed Zack & Slim

A little rusty, it has only been 14 years since we did this last but we got the South Tube into HAM6.  We did do the hard one first though, the North Tube should go much easier tomorrow.  Follow that with the Support Table, position work, and Bellows install.
A few photos for the archives.

•	0845 Hanford Fire onsite all day doing maintenance and testing of outbuilding fire alarms with Rodney.
•	0900-1300 Terry, Christina, Chris and Karen cleaning various areas in LVEA---BSC1, BSC2, test stands. Corresponding dust alarms periodically.
•	0930 Corey installing LED lamps on LVEA ISC table.
•	1000 Rental tractor delivered to Mid-Y for tumbleweed crew (Valley Tractor).
•	1045 Jim B examining test stands in LVEA.
•	1119 Dave B restarting H1SUSIM.
•	1445 HFD work complete.
•	1530 Apollo breaking bolts on BSC1 in anticipation of removing south door tomorrow.

Mark B.

I checked out the basic functionality of MC1 and MC3 and they seem fine after the rerouting of their cables. Matlab TFs will start shortly. The corresponding MEASUREMENT STATUS indicator will flash when a TF is underway on a particular suspension. The damped TFs will be done first in case in case the whole run is not done by the time of the RTCDS v2.6 installation tomorrow and needs to be interrupted.

The tumbleweed situation on X Arm remains dicey. One lane was cleared from the corner to the end however there has been some encroachment due to subsequent weather. The road section from the corner to the mid is a little intimidating because of the height of the tumbleweed piles but is passable as long as you don't hurry too fast. The road section from the mid to the end is somewhat more open. 

ICC is complete, the new spool pieces are installed and married up and all doors are returned to the chamber.