21:25 Incoming EQ from Papua New Guinea area - 7.2 H1 rde

21:35 SEI_CONF switched to EARTH_QUAKE - Peak Outmon exceeding 3000 cts

21:35 Jenne set ADS gain to 0

21:43 Lockloss - Seismon was reporting that R wave still 1300 secs in the future and P/S waves were already 1300 secs in the past.

21:47 H1 to DOWN

22:03 switched SEI_CONF to LARGE_EQ_NOBRSXY

22:12 looks like the worst is past - nothing tripped

22:!3 Daniel and Cheryl out to LVEA

WP8199 h1tw1 raw minute trend files offload (SSD to Spinning Media)

Dave:

As part 1 of the offload, I have frozen h1tw1's  raw minute trends prior to offloading them. These cover the time period 17dec2018 - today. To permit h1nds1 to serve these data from this temporary location until such time as they have been copied, I added this location to its daqdrc file and restarted h1nds1's daqd at 13:52 PDT.

DQ shifter Kentaro Mogushi, LHO fellow: Pep Covas

The full report can be found on the detchar wiki:https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20190429

Below I summarize the main highlights of this shift:

• The duty cycle factor during this week was 73.6%.
• The wandering lines showed up due to SQZ, which were also seen in H1:PEM-CS_MAG_LVEA_OUTPUTOPTICS_X_DQ.
• The variance of ASC DHARD yaw control seems to be correlated with that of the VCO frequency.
• The line of Pcal X TX did not sit on the top of the line of RX at 500 Hz on May 2, 3, and 4th although the line sat on April 29th and May 5th. The Pcal plots are not generated on April 30th and May 1st.

The current beam path on IOT2L goes first through an uncoated optics which dumps most of the power. According to alog 6301 and T1600107 the reflected beam is about 3%. The reflected beam is then about 60mW with 1.85W unlocked and maybe about 20mW at 35W locked.

Next a halfwave plate and polarization wedge are used to attenuate the beam further. In the current setup we are attenuating by about ~5. In order to increase the power on the IMC REFL photodetector by ~10 and keep the power in the wavefront sensors roughly the same, we would need to adjust this ratio to 1. Alternatively, we could simply remove the the polarization wedge and use the halwaveplate to give us s-polarization.

Downstream of the power adjustment, half the light is split towards the IMC REFL photodetector, whereas the other half is divided between the 2 wavefront sensors and a camera. The camera path takes about 5% of the light. We would need to replace this beamsplitter with a 90:10, which would reduce the light towards the wavefront sensors by 5. This setup would effectively increase the IMC REFL PD power by ten and double the power in the wavefront sensor path.

A trigger photodetector needs to be installed as well.

Nothing to see here. (unusual that is)

Restarted the CW injection at 17:05 UTC.  Dave and I have been working to configure the CW injection closer to how LLO does it, via monitoring with monit and start/stop via systemd.  I tested the systemd start of the psinject.  It started up, showed as running in monit.  The only thing I noticed was that the systemctl command tool several minutes to finish (after the psinject process was running).

The main difference we have between LLO and LHO with regards to monitoring and control is that we do not yet have auto restarts enabled.

17:08UTC Also, CW injections are back up and running.

16:55UTC Kyle moving forklift from LVEA large access area. THis activity is being coordinated with Jenne's PRCL FF measurements. These activities should take ~10 minutes.

TITLE: 05/06 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 105Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    Wind: 6mph Gusts, 3mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.10 μm/s
QUICK SUMMARY:

TITLE: 05/06 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 111Mpc
INCOMING OPERATOR: Ed
SHIFT SUMMARY:

H1 keeps on rollin':  28.5hr lock and counting.
LOG:

• Started with an Observing H1.
• 7:17 "CW Injections Have Stopped" verbal alarm received
• 11:01-11:02 Out of Observing due to Squeezer ("OPO unlocked, turning off SQZ")
• 13:51-14:51 GRB stand down time (talked to Tom @LLO).

    Laser Status:
    Front End Power is 32.34W (should be around 30 W)
    70W Output Power is 69.23W
    Front End Watch is GREEN
    70W Watch is GREEN

    PMC:
    It has been locked 5 days, 19 hr 44 minutes (should be days/weeks)
    Reflected power = 10.09Watts
    Transmitted power = 55.0Watts
    PowerSum = 65.09Watts.

    FSS:
    It has been locked for 1 days 4 hr and 0 min (should be days/weeks)
    TPD[V] = 3.932V (min 0.9V)

    ISS:
    The diffracted power is around 2.2%
    Last saturation event was 1 days 4 hours and 0 minutes ago (should be days/weeks)

    Possible Issues:  Nothing to report

Nothing out of sorts here.

SUMMARY:  Have been locked for almost 4hrs and in the last hour noticed our range slowly taking a dip in range over a 30min span (went from 112Mpc down to 102Mpc!).  Cause for the dip was a noticeable line on DARM which was sweeping between 65-120Hz (along with a few of its harmonics).  It's gone now.

TIME Of Event:  13:27 - 14:02utc Stopped abruptly at 14:02.

DARM BLRMS Striptool really show the effect.  H1 had a normal glitch and right after the glitch the the 60-100Hz band remained elevated.  100-450Hz band would go up a little due to the harmonic, but when the fundamental swept above 100Hz, then the 100-450Hz band became the noisiest.  (nuc6 Note:  100-450Hz has been off-scale on this StripTool, so I increased the vert axis and saved the file).

I took power spectra of a quiet time (blue) & during this noisy time (red) & you can clearly see the fundamental and it's harmonics.  But like I said, it was noticeably sweeping across DARM (I seriously looked at the CDS Overview for any excitations, but everything looks green in here!).  

Attached is a screenshot showing the power spectra, DARM BLRMS StripTool, & the BNS Range.

SUMMARY:  Wish I could say I actively curred H1's issue tonight, but all I can say is my breakfast got us back to OBSERVING after ~4hrs of being DOWN.   Below is a summary of with highlights in bold.

• Locking
  • 6:58 Lockloss due to EQ
  • 7:03 Ran Jenne's ASC WFS Phase command
  • 7:30 transitrioned to WINDY (since the nearby EQ clearly had moved on.  Seismon gave location of "Canada", but USGS probably has it right with a 4.8 EQ near Ferndale, CA)
  • 7:34 LOCKLOSS:  During ENGAGE_ASC_FOR_FULL_IFO, POP90 started to go up & then caused a lockloss (first of several!)
  • 7:34 - 9:00 Had 4-5 Locklosses all around ENGAGE_ASC.
  • 9:09- (about) 10:05 Kept H1 at OFFLOAD_DRMI_ASC while I made an egg sandwich.
  • 10:09 After reading alogs to see if the ASC WFS Settings need to be changed (they don't...with our current protocol for the weekend.  We manual toggle them between states via Jenne's command line), I didn't have anything else to try, so I went to ISC_LOCK to NLN.  
    • NOTE:  Over the ~1hr h1 was at OFFLOAD_DRMI_ASC, several LSC signals on the strip tool (notably POP18) slowly trended down (& then I touched up the DRMI alignment, to get POP18 up to around 60).  [See attached photo of strip tool]
  • 10:33 Made it to NLN (Guardian hovered a bit in a few steps to wait for ASC & ADS signals to converge).
• SDF Diffs:
  1. Had (4) for ASC WFS phases (expected), so I ACCEPTED these (will change this after H1 heats up and change the phases again).
  2. Had (1) for LSC's H1:LSC-SRCLFF1.  It has several filters engaged.  I spent (too much) time trying to find this filter bank to no avail.  Since H1's performance looks decent, I ACCEPTED this diff (of course screenshot-ing the difference first, [see attached]).  (What and where is this channel??)
• 10:50 Back to OBSERVING
• Have my alarm set for 12:00utc so I can pop out of OBSERVING and change the ASC WFS phases.