Following aLOG 5671, I have started to restore the HEPI at EY this afternoon. Here are the few tasks performed:

- Large offsets were visible in corner 3. (Source of the shift (Feb 25^th,2013) is unknown at the moment). I applied offset drives in the local basis to bring back the IPS within 3000 counts.
- I cancelled out IPS offsets in the Cartesian basis
- Few weeks ago, I modified the commissioning scripts such that the minus sign of the feedback loops is introduced in the isolation filters. Before the modification, I temporary put the minus signs in the Output filter bank to be able to use the "ramp up" script. I removed the minus sign from the output filters bank.
- Ramp up isolation filters
- Applied the yaw offset (-737800 counts)

STS-2 (ground instrument) looks currently off centered and signals are pretty flat. Centering the seismometer was unsuccessful.
STS-2s can be re centered either using by pushing the AZ button (front panel of the interface chassis) or using binary outputs. At this point, binary outputs are only controlled by the ISI models (the feature is not implemented in the HEPI models). I noticed that the STS-2 centering bit (at EY) was high whereas it should not (The ISI output word is right). I left the binary output cable (from BO chassis to STS2 chassis) disconnected.

The curtains closest to BSC2 were removed and rolled up for temporary. All extraneous CPStat was removed from the beam tube close to HAM3. Tomorrow, we will rig the HAM3 cleanroom and move it into place as close to BSC2 as possible using the crane.

I restarted the DAQ after the vacuum work was completed today. This added the new IOP models for h1sush56, h1susauxh56, h1seih45 to the DAQ.  This closes WP3736.

I extended the H1CDS_STATE_WORD_CUSTOM.adl medm screen to include place holders for MY and EX systems and add a summary of the DAQ systems.

The Perl environment setup scripts have been modified for control room workstations to add a LIGOTOOLSBIN path, which should point to /ligo/apps/${EPICS_HOST_ARCH}/ligotools/bin/

No issues to report here.  We had only 5 Apollo crew.  Cleanroom was lowering at 8am and the Cartridge was TDC at 1155.  Crane full payload was 9560, Cartridge weight 9130lbs (less the 430lb 3point lifter).  Apollo took 30 minute lunch and back to raising the cleanroom.  Landed and bolted to Support tubes and all torqued, closed up, & exited at 1445.

Thanks to Jodi for lots of prep work as well as Jim Greg & Mitchell and Apollo: Randy, Mark, Mick, Scott & Ed.  Thanks to MichaelL for logistical & moral guidance.

I'm sure Dale will provide to images soon.

Results are posted here as well as earlier with the H1 accumulation. The Y2 module appears be be significantly better than Y1 - perhaps 6 times better.

https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=5666

9:00 LVEA laser safe

10:00 Start moving the BS quad suspention

14:00 EY in laser hazard (Corey and Kiwamu)

14:15 Pooling water sample

14:20 Student at the control room and around (Dale)

14:30 Fire alarm at the Warehouse triggered by open an oven (contac Justin for more details)

14:45 BS in BSC2 completed

15:00 Safety meeting

   We took TFs and Power Spectra data for HSTS I1-MC1. All files have been committed to the SVN repository.  The data files are attached below for review by Stuart A. and Jeff K.  

J. Kissel

We'd chased our tails for a few days because we were comparing uncalibrated alignment data mode cleaner mirror against calibrated data (see LHO aLOG 5660). We believe the calibration was not present over these past few days (maybe weeks) because the safe.snap was out-of-date. So, I've taken the time to give them a thorough, expert's thrice-over, ensuring all parameters are in the correct configuration, and have captured new safe.snaps. Details below.

Items that I've confirmed:
- OSEM open light current compensation is in place (OSEMINF OFFSETs and GAINs) 
     - MC1 
          - M1 from LHO aLOG 4067,
          - M2 & M3 from LHO aLOG 3409
     - MC2 
          - M1, M2, & M3 from LHO aLOG 3505,
     - MC3 
          - M2 & M3 from LHO aLOG 4624.
- Sensor calibration is ON (see LLO aLOG 4291 for derivation)
     - OSEMINF FM5 "to_um" filter is engaged for all stages (see LLO aLOG 4555 for original implementation)
     - DAMP FM5 "norm*" filter is engaged for M1 stage (see LLO aLOG 5388 for original implementation)
- DAMP damping loops are set with up-to-date filters and gains:
     - L: FM3 [resg], FM5 [normL] G = -1.55
     - T: FM1 [0:25,25], FM10 [ellip50], G = -2.0
     - V: FM1 [0:20,20], FM10 [ellip50], G = -3.0
     - R: FM1 [0:20,20], FM10 [ellip50], G = -0.2
     - P: FM1 [0:25,25], FM10 [ellip50], G = -2.0
     - Y: FM1 [0:20,20], FM10 [ellip50], G = -1.0
  Note, the exact frequencies at which the velocity damping filter (FM1) in T,V,R,P,and Y differ from LLO, but this doesn't really affect the performance -- they're crappy whether they're all at 25 Hz as in LLO or at 25 +/- 5 Hz as they are here (and isn't captured by the BURT snapshot anyways). They will be replaced soon, so for now the discrepancy is not worth fixing.
- ISIWIT Path is installed, on and engaged (originally from LHO aLOG 4553, but I couldn't find a log indicating when things were specifically installed for the MC mirrors.)
- OPTICALIGN M1 alignment offset drive calibration is installed (from LHO aLOG 4763)
- Alignment offsets from a prior good IMC lock are installed (from LHO aLOG 5663)
- All stages of inner-most watchdog parameters are set, and the 'dogs are cleared and armed
     - OSEM DC Threshold set to +/- 30000 [cts] (based off of a ~few thousand count buffer of the full ADC range)
     - OSEM AC Threshold set to 8000 [cts RMS] (based off of empirical experience of "what it rarely goes over during normal use)
     - ACT AC Threshold set to 25000 [cts RMS] (based off of empirical experience of "what it rarely goes over during normal use)
     - All Bandlimiting filters are engaged
- Coil Driver BIO states set to 1 (see T1100507)
     - Low Pass filter OFF for TTOP driver
     - Low Pass and Acquire filters OFF for TACQ driver
- [MC2 Only] Locking Filter paths are as described from a prior good IMC lock (from LHO aLOG 5452)

And naturally, for the safe.snap capture, I've turned OFF all requested drive to the DAC, so
- OPTICALIGN alignment offsets are turned off (at the OFFSET button level)
- DAMP damping loops are turned off (at the OUTPUT button level)
- MASTERSWITCH is OFF

--------
Though Mark has written a nice utility for capturing safe.snaps (see LHO aLOG 5202), I needed to get this done fast, hadn't used it before, and saw a few things I didn't like (which we've since corrected), so I captured the files "by hand" (which is quickest for me), hence:

(1) Turned off all requested DAC drive, i.e. "natural" steps listed above by hand.
(2) Captured each suspension's safe.snap, saving over what is in the userapps repository, e.g.
controls@opsws0:burtfiles 0$ pwd
/opt/rtcds/userapps/release/sus/h1/burtfiles
controls@opsws0:burtfiles 0$ burtrb -f /opt/rtcds/lho/h1/target/h1susmc1/h1susmc1epics/autoBurt.req > /opt/rtcds/userapps/release/sus/h1/burtfiles/mc1/h1susmc1_safe.snap 
(3) Ensured that the link to target directory (which is where the front end *actually* looks during reboot) was in place, e.g.
controls@opsws0:burt 0$ pwd
/opt/rtcds/lho/h1/target/h1susmc1/h1susmc1epics/burt/
controls@opsws0:burt 0$ ls -l safe.snap 
lrwxrwxrwx 1 controls controls 63 2013-01-17 12:46 safe.snap -> /opt/rtcds/userapps/release/sus/h1/burtfiles/h1susmc1_safe.snap
(4) committed the new safe.snap to the userapps repository,

After Travis moved the blade tip EQ stop (see previous entry 5661) I started a ran of transfer functions overnight.

M1 to M1 PR3 transfer functions are plotted for all degrees of freedom :

- Undamped TFs are compared to the model on the first pdf (2013-03-05_1046582748_H1SUSPR3_M1_ALL_TFs.pdf)

- Damped TFs are compared to the model on the second pdf (2013-03-06_1046601031_H1SUSPR3_M1_ALL_TFs.pdf)

- Those measurements have been compared with LHO phase 2b and LLO phase 3a on the last pdf (allhltss_2013_03_06_Phase3a_H1-PR3_ALL_ZOOMED_TFs.pdf) with the following legend :  hlts model / LHO damped phase 3a / LHO undamped off phase 3a / LHO undamped phase 2b / LLO undamped phase 2b

Each DOF looks good, consistent with both model and previous measurements. 

h1fw0 crashed at 23:05 Tue 5th march. I restarted it at 10:30 today, Wed 6th. The cause of the crash is under investigation.

For the 35W laser.

I replaced the dust monitor in the optics lab (lab location 1) which is indicating a sensor failure. It is labeled 'U'.

After running a week at 125psi, the LVEA HEPI hardlines were vented in preparation for filling with fluid.  The plugs at BSC2 South were fitting with pressure transducers for aLIGO operation.

This report is for yesterday.
North door is removed so chamber is ready for entry.

This report is for yesterday.
Feedthrough/blank install is complete except for one 12" conflat. Hugh is locating an appropriate conflat. We will stand-down on this work to concentrate on BSC2 Cartridge install.

This report is for yesterday.
Dome was removed
Walking plates were wiped down and put into place
Both staging cleanrooms were populated
Chamber cleanroom function was checked (2 fan-filter units were on low rather than high, 1 fan-filter unit was not functioning and was replaced)

Kyle valved out the Y1 Module for a few hours today. Tomorrow  we will valve out the Y2 module.

Attached is the rate of rise for the two end vacuum gauges.

If I have done the math correctly this translates to a very low outgassing rate with no significant leaks :  1.3 e-6 tl/sec for the 2km module. If it is all H2 this yields ~2e-14 tl/s/cm2