TITLE: 08/08 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 53Mpc
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
    Wind: 5mph Gusts, 4mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.05 μm/s 
QUICK SUMMARY:

GraceDB query failure (see previous alog). Talked to LLO and asked them to alert us when they receive notifications.

The Ops overview MEDM screen is showing a red block that reads 'GraceDB query failure' (see attached). I found the following wiki page: https://cdswiki.ligo-wa.caltech.edu/wiki/ExternalAlertNotification and followed the instructions to log in to h1fescript0 and run 'ps aux | grep exttrig'. It reports the following:

root       787  0.0  0.0  77568  3636 ?        Ss   23:41   0:00 sshd: exttrig [priv]
exttrig    963  0.0  0.0  77568  1612 ?        S    23:41   0:00 sshd: exttrig@pts/5 
exttrig    964  0.9  0.0  26860  8112 pts/5    Ss   23:41   0:00 -bash
exttrig   1217  0.0  0.0  18148  1260 pts/5    R+   23:41   0:00 ps aux
exttrig   1218  0.0  0.0   9380   940 pts/5    R+   23:41   0:00 grep --color=auto exttrig
exttrig   2386  0.0  0.0  28320  1640 ?        S     2016 348:20 caRepeater
exttrig   5449  0.0  0.0  26992  1464 ?        Ss   Jun20   0:00 SCREEN
exttrig   5450  0.0  0.0  27416  8820 pts/8    Ss   Jun20   0:00 /bin/bash
exttrig   6107  0.0  0.0 129772  9276 pts/8    Sl+  Jun20  33:49 python ./viralert_epics_ioc.py

This does not match what the wiki page says should be shown, but the wiki page was last updated in 2015, so maybe it is just not up to date?

I suspect this is the reason that there was no verbal alert of the earlier GRB (https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=38051)?

As an aside, the screen that I brought up locally shows a red block near end Y that reads 'RMS WD'. This is not present on the one currently on the wall monitor. Looking at the ETMY suspension MEDM screen, to my eye I do not see anything out of place (see attached).

TITLE: 08/08 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 52Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY:
LOG:

Backscattering at ISCT1 has been a problem in the past ( https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=35538) and we have installed new beam dumps (https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=35636). To answer the question of whether backscattering from ISCT1 will be a problem at higher sensitivities (assuming the current beam dumping), we placed a rented large-amplitude shaker on the leg cross beams.

An estimate from the data shown in the plot suggests that, assuming linearity, the background motion of the table would produce noise at the level of 1.1e-19 m/sqrt(Hz) at 11.4 Hz (a coupling factor of 1.25e-11 m test mass motion per meter of table motion).

We double checked that the features associated with shaking in the figure were produced by scattering from the POP path by closing the beam diverter. The features did go away when we closed the beam diverter.

Philippe Nguyen, Sheila Dwyer, Robert Schofield

T Vo, Sheila

We measured a transfer function from PCAL X to DARM this afternoon.  The attached screenshot shows a comparison of driving the ETMX ESD in the low noise state (with the settings that allowed us to transition to it from ETMY) and a drive to PCALX_DARM with the filters that Thomas copied from the ESD filter banks.  The red trace (ref 14+15) were taken with a gain of -150 in the PCAL filter bank.

01:37 We didn't get the verbal alarm ad Guardian didn't go into it's normal INJ_TRANS routine. This was done manually and a 1 hour stand-down is being observed. There were no changes being effected on the instrument at the time of LLO's verbal notification. There were some folks in the LVEA. H1 Intention Bit was still in Commissioning.

TITLE: 08/07 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 53Mpc
OUTGOING OPERATOR: Travis
CURRENT ENVIRONMENT:
    Wind: 10mph Gusts, 7mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:

TITLE: 08/07 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Ed
SHIFT SUMMARY:  Locked the entire shift and 25 hours total.  No issues to report.  There are 'Configuration Change' lights on the CDS Overview for SUSETMY and CALEX.  These are known to be related to WP 7104 and are filter modules that have been changed, but not yet loaded.
LOG:  See previous aLogs.

22:59 Commissioning mode for Robert injections and Sheila/Thomas ESD work

Standdown to end 22:58 UTC.

In alog 38044, I posted views inside HAM2 from currently available viewports:

• the first bullet shows that there is a good view of the baffle after IM1, HA1
• the second bullet shows that there is a good view of the input aperture to the Faraday Rotator (FR)
• the beam, as installed, was centered on both of these apertures
• using these apertures now, we can check the alignment of the reflected beam from IM1 and the input beam to the FR
• using these apertures, we can also align the input beam to the FR to be as close as possible to the ideal input beam in position and angle
• attached: diagram of where these apertures are in HAM2

Lock is 21.5 hours old.  No issues.

With Gerardo's help, I collected images of optics and baffles in HAM2 from all currently available viewports, with a focus on identifying fiducials for evaluating the input alignment.  The full report is T1700230, and the most notable fiducials are listed below with images attached.

Fiducials of note:

• IO Straight Baffle HA1 - on the reflected beam from IM1 - 15mm aperture (diameter)
  • beam spot on MC3 measures at -5.7mm from center
  • which means the incident beam on IM1 is -7mm from center
  • the radius of the HA1 aperture is 7.5mm
  • with a live camera view, the effect of the beam offsets from center could be checked
  • image HA1_DSC3621.png
• input aperture of the Input Faraday Isolator Rotator through the PRM AR Baffle - ~18mm aperture (diameter)
  • with a live camera view, the input beam could be driven until it's clipped in both directions, pitch and yaw
  • this would give us the most direct measurement possible of the input beam centering
  • the downstream QPDs do not reveal the beams centering due to their small size compared to the FI aperture
  • image FI_1_DSC3618.png, blurry, but shows that it's possible to see entire Faraday Rotator input aperture
  • image FI_2_DSC3599.png, the input aperture is clipped, but the image is in focus
• IO Straight Baffle HA13 - on the REFL beam that goes to HAM1 - 16mm aperture (diameter)
  • with a live camera view, allows for an alignment check of the REFL beam to HAM1
  • image HA13_DSC3661.jpg, HA13 is on the right, single aperture,
  • on the left is the ISS Array baffle with two apertures

TITLE: 08/07 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 55Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.05 μm/s
QUICK SUMMARY:  No issues handed off.  Lock is 17 hours old.

TITLE: 08/07 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 54Mpc
INCOMING OPERATOR: Travis
SHIFT SUMMARY: Rode through a series of earthquakes in Papua New Guinea. Remained in observing the entire shift.
LOG: N/A

M 5.3 - 156km SSW of Lorengau, Papua New Guinea
2017-08-07 12:12:11 UTC 3.351°S   146.777°E 10.0 km depth

or

M 5.3 - 171km SSW of Lorengau, Papua New Guinea
2017-08-07 12:02:50 UTC 3.510°S   146.819°E 10.0 km depth 


H1 remained locked.

FAMIS 6909

HAM3 V1 seems elevated.
BS ST1 all DOF seem elevated.
ETMY ST1 H2 seems elevated.
ETMY ST2 V2 seems elevated.
ITMX ST1 all DOF seem elevated.
ITMX ST2 V3 seems elevated.
ITMY ST1 all DOF seem elevated.