Calibration work was followed by a big storm which passed through.  (see attached screenshot with a gust over 70mph!)  

Then I had issues with a CLOSED shutter on ALSx (took me a while to figure that out while I steered optics around).  :(

Now I'm going through an alignment to undo the steering I did.

After the storm was passing through, ALS x & y were obviously flashing all over the place.  Unfortunately, within a few minutes the green spot for ALSx disappeared (and we had the error:  "ReflPD A; Green input align").

1)  Looking at ETMx, TMSx, & ITMx

Saw shifts for all of these guys, so I returned them to where they were during the lock, but no change for the spot on video.

2) ENDx Overview:  No spot for Green WFS (& offcenter spots for Green QPDs)

3) PDH Locking screen: 

• XALS Laser Green Mon is OK with a power of 1.2mW
• Xarm Green ReflA has an ERROR note & 0mW----When I click this the Error says "Power too low"

Attached is a screenshot of the issue.  Since the power is low I'm wondering if this is still an alignment issue & I just need to sweep optics to get something on the camera.  But I don't really know where to start and where to go.  This is something I can try next.

For the GREEN WFS, I'd prefer to not touch picomotors to get a spot on them, but I'm wondering if ETMX/ITMx/TMSx alignment sweeps could help this?

...........Oh Darn........

As I was going through the Troubleshooting wiki, there is mention of:  If one has symptoms as above (i.e. no power for XARM Green ReflA), one should check the shutters.  I just saw that the ISCTEX green shutter was CLOSED.  I opened it and I atleast now see light (ugly light, but light).  Why would this shutter close on me???

OK, now that I'm not blind, going to try and find the spot for Green X-arm!

We have been watching a storm (w/ lightning, loud thunder, and high winds) approach LHO from Rattlesnake and it is currently over the LVEA (or still approaching).  Have seen gusts over 70mph!!!  (H1 was steadily degrading in range & finally dropped lock.)

I transitioned SEI_CONF to MORE_WINDY, but may switch back to the normal WINDY since we don't appear to have sustained winds over 40mph.

NOTE:  1:25 Robert & crew taking down time to move laser vibrometer at BSC2.

J. Kissel

I gathered the following regular calibration measurements today; in summary -- the full suite. I was also able, during the sensing function portion of the measurements, to grab complementary PCALX sweeps and broadband measurements as well to further facilitate studies of the apparent a-causality of the detuned SRC spring. Total measurement time was 3.1 hours.


/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOSensingTFs/
2019-06-26_H1_DARM_OLGTF_LF_SS_5to1100Hz_15min.xml     # 1/(1+G)
2019-06-26_H1_PCALX2DARMTF_LF_SS_5t1100Hz_10min.xml    # C_x/(1+G)
2019-06-26_H1_PCALY2DARMTF_LF_SS_5t1100Hz_10min.xml    # C_y/(1+G)
2019-06-26_H1_PCALX2DARMTF_BB.xml                      # from 2019-06-27 00:52:26 - 00:54:09
2019-06-26_H1_PCALY2DARMTF_BB.xml                      # from 2019-06-27 00:49:25 - 00:51:09
2019-06-26_H1_OMCDCPDSUM_to_DARMIN1.xml                # TF to roughly convert units from DARMIN1 ct to OMC DCPD current

/ligo/svncommon/CalSVN/aligocalibration/trunk/Runs/O3/H1/Measurements/FullIFOActuationTFs/
2019-06-26_H1SUSETMX_L1_iEXC2DARM_10min.xml           # A_L1*C_y / (1+G)
2019-06-26_H1SUSETMX_L1_PCAL2DARM_8min.xml            # C_y / (1+G) for L1
2019-06-26_H1SUSETMX_L2_iEXC2DARM_22min.xml           # A_L2*C_y / (1+G)
2019-06-26_H1SUSETMX_L2_PCAL2DARM_8min.xml            # C_y / (1+G) for L2
2019-06-26_H1SUSETMX_L3_iEXC2DARM_8min.xml            # A_L3*C_y / (1+G)
2019-06-26_H1SUSETMX_L3_PCAL2DARM_8min.xml            # C_y / (1+G) for L3

Analysis to come.

[Rick, Sundae, Niko]

On Tuesday we investigated a loss of power range for the laser in the EX pcal transmitter module. Rick adjusted the pitch and yaw of the AOM alignment, as well as varying the distance from the transducer to try and optimize the diffraction efficiency. We were able to increase our offset voltage maximum from 6.2 V to 8 V.

We then did Tx module maintenance with the new AOM alignment (EX_06/25_tx_maintenance.pdf, EX_06/25_transfer_func.jpeg).

We finished off the long maintenance day with an end station calibration (EX_06/25_calibration.pdf, EX_06/25_beam_spots.jpeg). The beam spots are still centered (even after adjusting the AOM). Will comment later with data quality analysis.

TITLE: 06/26 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Calibration
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    Wind: 7mph Gusts, 4mph 5min avg
    Primary useism: 0.03 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

H1 locked, and it is currently out for ongoing calibration work by Jeff K.

TITLE: 06/26 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Calibration
INCOMING OPERATOR: Corey
SHIFT SUMMARY: Georgia and Jenne worked on commissioning. Robert worked on PEM. Jeff currently taking calibration measurements.
LOG:

15:22 UTC Heard plane flying over site
16:16 UTC Sundae to optics lab
16:17 UTC Ken to communication room
16:29 UTC S&K electric, replacing emergency light fixtures (WP 8262)
17:58 UTC Karen to mid Y
18:06 UTC Observatory mode to commissioning
18:16 UTC Ken to change room to add a light
18:17 UTC Robert, Matthew, and Adrian to LVEA to start PEM work
18:19 UTC Vanessa to mid X
18:24 UTC Ken to air handler room
18:41 UTC Karen leaving mid Y
18:43 UTC Set SEI_CONF to EARTH_QUAKE
19:25 UTC Lock loss
19:30 UTC GRB E337158. Confirmed with LLO. Unlocked, ignoring.
19:34 UTC Set SEI_CONF to WINDY
20:27 UTC Dave to end Y
20:55 UTC Dave back
21:03 UTC Kyle to mid Y
21:48 UTC Observatory mode to calibration
22:58 UTC Chandra to mid Y

Jeff K, Dave:

For each IOP model:

1) if safe.snap and OBSERVE.snap were links to separate but equal files, changed OBSERVE link to point to safe.snap file

2) if safe.snap and OBSERVE.snap were links to separate and different files, made safe.snap = OBSERVE.snap and changes OBSERVE link to point to safe.snap file

only h1iopoaf1 needed no changes. 13 IOP models matched 1) and 16 IOP models matched 2) making 30 total IOPs.

Following my discovery that h1iopiscey was not setting its DACDT to On until last week, today Jeff and I turned on h1iopiscex's DACDT.

So far its looking promising following the replacement of sw-ex-h1daq Netgear by Brocade. 24+ hours and no further CRC errors. We should know more definitely by the end of the week.

BTW: we were able to see corresponding switch port errors on the Netgear using LibreNMS plots, details in the CRC wiki page  This gives us confidence that replacing the switch will fix this error.

[Georgia, Jenne]

• In prep for the measurement, at around 11:50am local we turned on the ETMY bias with 9 V (a little less than the 9.5 V value that ETMX uses).  There is a lot of low frequency noise added, so we're sat here for ~7 min in case the data is useful, but then we're trying the other sign of the bias.  We don't think that we need lower noise for our measurement (exciting the mode with various ESD patterns on different optics) though, so it should be fine either way. 
  • Keita points out that maybe we should think about grounding the ETMY bias input, since we aren't using it at all for lock acquisition.
• We were working on exciting the mode (not succesful yet), but lost lock.  I suspect the lockloss is unrelated to our work, since none of the PI modes were any higher than they had been the whole lock, our excitation hadn't changed in a long time, and Robert had said that he was planning to do some laser vibrometer work requiring contact with some HEPI piers.  So, I suspect that the lockloss was a combo of Robert's work and the fact that we're in EQ mode. Robert and crew were still in the H2 part of the LVEA, hadn't gotten near HEPI piers yet.
• Acquisition guardian change: PRMI_ASC_OFFLOADED now turns off the PRMI ASC filter banks that were in use, prior to our trying to acquire DRMI lock. It looked like we were still sending signals out to the optics after we had lost PRMI when the SRM came back into alignment, which probably didn't help DRMI acquisition (although it did catch by itself).
• We are going to excite this time in the damping filter for PI mode 24, since then our RMS monitor won't be directly contaminated by our excitation, and will just monitor the actual peak height.  New channel: H1:SUS-PI_PROC_COMPUTE_MODE24_DAMP_EXC, with a narrow bandpass in the awggui. 
  • Previous channel: H1:SUS-PI_PROC_COMPUTE_MODE24_BP_EXC.
  • Had also tried exciting using the OMC deacon infrastructure, but that's not really what we want to be using for this identification measurement.  We'll re-look at that when we're ready to implement deacon alignment for the OMC.
• To be continued in a comment by Georgia....

Per WP 8256, took SEI systems down at the Corner and independently at Endy, to check the fluid accumulators' gas charge.  Not one accumulator needed charging in the corner station nor at EndY.  Did not attempt EndX as Pcal work was going on.

Then EndX will not take very long, maybe 1 hour and we'll do that as soon as tolerable.  I'll venture that the 7 accumlators at EndX will be fine but that venture will likely be all it takes to insure that at least one will need charging so better plan on checking.

TITLE: 06/26 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 115Mpc
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
    Wind: 10mph Gusts, 6mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.06 μm/s 
QUICK SUMMARY: No immediate issues.

TITLE: 06/26 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 117Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
LOG:

THe 48Hz peak is "breathing" rather prominently in DARM.

WP8247 upgrade EX DAQ network switch to Brocade (Ruckus ICX-7150-24)

Dave:

The upgrade of the switch itself went as planned. Problems arose when I activated a port on sw-ex-h1fe to connect the new switch to the ADMINLAN.

After having previously done this upgrade at EY in March of this year, the switch swap-out went smoothly. With the proper tools (e.g. right-angled screwdriver), removing the obscured rack screws went well. Removing the side of the rack (with key) and the left 'ear' on the outgoing Netgear and the incoming Brocade allowed the switches to be retracted into the rack and removed though the side.

Powering down the Netgear sw-ex-h1daq did not cause any other systems' DAQ data to go bad. Once the Brocade sw-ex-h1daq was started, all the EX front ends and the pem at MX recovered their DAQ data.

To connect the new switch to the ADMIN LAN we are currently running an ADMIN ethernet cable over from the local h1fe switch (the tagging of this VLAN from the MSR is not currently working). I converted a slow controls port to an ADMIN port (0/7) on sw-ex-h1fe for this purpose. Unfortunately this was a tagged ADMIN port (from when we used to pair front end FE-LAN and IPMI on a single port) which caused some network issues mentioned in other alogs.

I'll keep this workpermit open to cover fixing the tagging of the ADMIN LAN from the MSR to the end station switches.

Beckhoff code changes:

Daniel, Patrick, Hugh:

As reported elsewhere, corner and end station Beckhoff restarts for new code were made. The Beckhoff SDF faux-models required restarts.

Due to time constraints and other activities requiring the DAQ, these two items were postponed.

• ISI and SEIPROC model updates
• DAQ Restart

Note that this means the new slow controls channels created today are not in the DAQ.

{Kyle, Gerardo, Chandra}

Installed the first new main turbo pump station on main volume today at mid-y station. All went smoothly. We hard closed GV10 and GV11 and performed a full visual inspection on the actuator per Q1800019 and will make notes in the google sheet.

All vacuum seals are leak tight with the leak checker bottomed out at 1e-10 Torr-L/s of He, except for the manufacturer turbo vent valve which leaked in mid -9 range. We plan to replace those components with blanks and added an after market vent valve on 6-way cross. 

We spun up the turbo and tested a few controls functions. The new three-position switch mod works as intended. The pressure fell to 1e-7 Torr.

This task took most of the day and GVs were closed from about 8:30 am to 4:30 pm. Gerardo and Kyle bumped them open to slowly peel away the o-rings.

The new safety valve is a spring closed, electro-magnetic style, so no more need for instrument air. We found a small air leak in the instrument air line in mechanical room and notified Bubba.

Good work, team!

Work permit 8250 closed.

Here are some MC_F spectra.