TITLE: 06/15 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 59Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY: Observing entire shift. Might want to keep an eye on verbal alarms. It did not announce the time at 08:00 UTC so I restarted the alarm handler computer and the script.
LOG:

08:17 UTC Verbal alarms did not announce the time at 08:00 UTC. Restarting alh computer.

Quiet shift so far. Just starting to ride out a 4.8 magnitude earthquake in Bolivia.

Adjacent annulus ion pumps (AIPs) look normal so not due to room temperature increase but instead an issue with this particular unit.  A vacuum team member will investigate tomorrow.

No action is required by the Control Room operator.

TITLE: 06/15 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 63Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    Wind: 8mph Gusts, 7mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.06 μm/s 
QUICK SUMMARY:

No known issues.

TITLE: 06/15 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 62Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: Rode through two rough earthquakes while we were going to do some brief commissioning, but didn't get to because of the EQs. 13hrs lock at 62Mpc.
LOG:

• 00:15 Out of observing so Sheila can run a quick measurement
• 00:38 Back to Observing. Sheila was never able to run the measurement because of a 5.5M eartquake in Mexico, we made it through but barely.

I could not connect to terramon during any of the events.

5.5 Mexico

• Seismon saw it before USGS and reported an incoming velocity of ~1.5e-6m/s, magnitude and arrival times were very close.

5.9 off of New Zealand coast

• Seismon saw it about 10/15min before USGS reported it
• Predicted arrival velocities were 2.95e-6m/s, but the BLRMS only show a peak of 0.2e-6m/s. Off by an order of magnitude.
• Times were only a handful of minutes off, but not as close as the previous earthquake. Makes sense since it was much further away.

TITLE: 06/14 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 63Mpc
OUTGOING OPERATOR: Jeff
CURRENT ENVIRONMENT:
    Wind: 12mph Gusts, 9mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.06 μm/s
QUICK SUMMARY: 5.5hrs lock with a calm environment. Seems that I left Patrick with a large earthquake last night...

Shift Summary: Dropped out of Observing for commissioning work. Took advantage of this to run the A2L repair script. Both Pitch & Yaw are back to below the reference.

In Observing for past 5 hours. No issues or problems to report.    

WP #7037 

1330 hrs. local time -> 35 microns 

I've decided to continue to pump overnight in hopes to get the pressure down into the single digit micron region.  

Per direction from Robert Schofield and Jeff Kissel, I have disabled three of the four FMCS temperature sensors. The disabled sensors are labeled A, B, & D. We are hoping this will align with the P-Cal temperatures. The average of the temperature will now be taken from sensor C only.
 
Robert Schofield is monitoring the temperature now.
 

   Checked Diode and Crystal chillers. Both are OK. Water levels are good and the filters show no signs of either debris or discoloration. Closing FAMIS task. 

   Dropped out of Observing for commissioning/calibration work. Took advantage of the commission break to run the A2L repair script. Both Pitch and Yaw are below the reference. 

   Back into Observing after commissioning work finished. 

   The wind has come up to the mid-teens gusting to over 20mph, with a corresponding rise in microseism. No other apparent problems noted at this time.   

Due to 3 inconsistent signs in the OSB optics lab which stated that the HVAC fan should be on all of the time, Rick and turned it on.  We were anticipating using the small air bake oven on the counter which referenced the fan being on, and then ran into the signs.  We then attempted to follow the signs and turn the fan on, but found that the wall dial would not turn the flow down to the spec on the sign, nor did there appear to be any updraft in the airbake oven.  So, we think the whole airbake exhaust system in the OSB is broke.  We're relocating our bakeout operation to another oven in another building.

J. Kissel

Having been bitten by "clipping" in PCALY beforehand, I've gotten into the habit of trending the PCAL's reported test mass displacement before / during calibration measurements. Further, I've been worried that the residual temperature fluctuations after end-station's HVAC upgrade will impact the accuracy of the PCALY's RX PD's reported reported displacement.

Sure enough, the attached trend shows that the residual 0.2 [deg C] diurnal temperature swing is causing a 1.0 to 1.5% deviation in reported displacement. I'm not sure whether to request that the PCAL system be less sensitive to temperature, or if the HVAC system to control the temperature better, but we can't use the RXPD as a fundamental reference, with claimed accuaracy / precision of 0.75% if its impacted by temperature at twice that level.

For record, we're in no way sure that this isn't caused by test mass pitch (also from temperature fluctuations) steering the beam into a spot that has more clipping, if the PCAL periscope's position is oscillating with temperature, it's something inside the receiver box, or something we otherwise haven't considered. That the TXPD's reported displacement remains rock-solid implies that the fluctuations are not on the input side.

For now, I'll record the TXPD as reference during transfer functions.

WP #7037

10:30 am, local time -> As found, CP3's dewar vacuum jacket measured 230 microns -> Began pumping using two-stage scroll pump with energize-to-open isolation valve 

Noon, local time -> 140 microns