TITLE:   Nov 25 Owl Shift 08:00-16:00UTC (00:00-08:00 PST), all times posted in UTC

STATE Of H1: Observing at ~80 Mpc

LOCK DURATION: 7 hrs 4 mins

INCOMING OPERATOR: Cheryl

END-OF-SHIFT SUMMARY: Useism is slowly decreasing. Wind is still at 20-30 mph. Otherwise quiet night.

Activity Log:

8:22 BS ISI ST2 tripped

8:35 Kyle on site going to X2-8 to refill the generator.

9:08 Kyle left

Still observing at ~75 Mpc. Useism reads 2e-1 um/s. Wind speed 20-30 mph.

I have attached the screenshots of all the SDF I accepted. I accepted all the changes with the ISI and accepted the old ASC gains since they were decreased to help with the 45mHz instability (from what I uderstand). We are using 90mHz blend everywhere at the moment. I forgot to take a screenshot of ETMX ISI changes but it's the same as ETMY. I've also attached the screenshots of ground motion and wind monitor when the IFO was locked. ETMX violin mode at 505.707Hz seems higher than usual. I'm keeping an eye on it. The amplitude seems to be decreasing slowly. I'm playing a violin in the control room and playing Pan's Labyrinth album on the big speaker (violin-heavy. only half as loud as Robert's injection).

Ops Day Shift: Nov 23rd 2015 0:00-8:00UTC

State of H1: unlocked, wind and microseism making locking difficult

Assisstance today: Jenne, Evan, Jeff

Summary:

An earthquake early on kept us from locking, then winds and microseism. Currently ALS won't stay locked, finding IR is barely possible. I've tried several permutations of ISI configurations, but nothing has helped much. Currently running 90mhz blends everywhere, as that was the best until about 20 minutes ago.

So far no locking tonight. First part of the shift we were waiting for an earthquake to ring-down. Now winds in the 30-40 mph range and moderate microseism are making locking difficult. Jenne is attempting to do some stuff by hand, but the environment doesn't show any signs of settling down.

DCS replaced the main samfs filesever today during maintenance. This took longer than expected, with restarts of Disk2Disk, rds and aggregegated hoft generation occuring around 2 pm PST, and all services restored by 5 pm PST. All DCS services seem to be running fine now. However, the detchar summary pages have not caught up yet and I've emailed  Duncan Macleod about this.

J. Kissel

Regular Teusday measurements. All 5 measurements complete for both test masses, but I had had a bunch of trouble with NDS returning data gaps that broke the multi-nested set of functions that analyze the data in ways that varied with measurement and even within the data gathering of one measurement. As such, I was only able to process 1 ETMX measurement and 3 ETMY measurements. However, even with that little of measurements, we can still see that the charge continues to trend as expected. The effective bias voltage for ETMY has just crossed zero, on its way to more negative, and continuing to at at rate that is consistent with us needing to flip the bias again in late December. Will work with Stuart and the NDS crowd to try and make data gathering more robust.

there have been 3 testpoints open on PSL PMC for many days, I have just cleared them.

I have compiled and installed all the SUS IOP models against RCG-2.9.7. The next time these models are restarted, they will run with 2.9.7 code which latches any DAC errors and delays the triggering of DACKILLs by DAC errors by one second. Only the SUS IOP models which control 18bit DACs have been built against 2.9.7. The default build area continues to be 2.9.6.

Ops Day Shift: 16:00-00:00UTC (08:00-16:00PT)

State of H1: unlocked, recovering from an earthquake, not yet able to lock, IMC and IFO set to Down

Assisstance today: Jenne, Kiwamu, Jeff, Ed, Hugh

Summary:

• Maintenance
• locking/alignmentWFS issues in green on Y arm
• full initial alignment
• OMC needed help relocking
• ISS 2nd loop engaged manually
• Low Noise, then an earthquake

Relevant alogs:

earthquake

maintenance

Mid-Day Update - relocking

Test alarms did not come through

Next fill ~ 0030 hrs. tonight

Dave, Jim

We modified the /etc/init.d/psinject script on h1hwinj1 to ramp the gain on the H1:CAL-PINJX_CW filter from 0 to 1 over a 10 second interval when starting psinject.  Similarly, there is a ramp down of the gain from 1 to 0 over a 10 second interval when stopping psinject.  Although this does not prevent a transient if psinject dies unexpectedly, it does help when Monit restarts the process.  Since the /etc/init.d/psinject takes longer to finish execution, we also changed the /etc/monit.d/psinject file to include longer timeouts.  

Modified files are included as attachments.  

We tested the revised setup by starting and stopping the psinject using Monit and /etc/init.d/psinject, and while under control of Monit, we tested killing the psinject process to ensure that Monit would restart it.

Since the scripts now set the gain and ramp time of the filter, we also changed the SDF file to no longer monitor the channels to avoid problems from SDF differences.

We left the CW injection running.

Earthquake data:

Time: Tue Nov 24 22:45:37 UTC 2015

Location: 173km WNW of Iberia, Peru; LAT: -10.6, LON: -71.0

Magnitude: 7.5

Activities during maintenance:

- Bubba and Chirs clearing roads and walkways

- PSL REF CAV alignment, Peter, Ed, Jason

- Sprague, checking traps all buildings

- MikeL called, watch for SNEWs alert at 9:00 and G-wave alert at 9:05

- US Linen delivery

- Jodi in LVEA, 3IFO

- Gerardo, in LVEA, 3IFO

- charge measurements on ETMs, JeffK

- Hugh, HEPI checks all buildings, and in CER

- Filiberto in LVEA, checking racks 

- Sprague, ChrisS escorted to LVEA 

- 18:10UTC, I put all IMs in Safe Mode, free swinging

- 18:53UTC realigned and damped, except IM1, as noted in my Update Log

- paradice water

- wifi off, Hugh out of the LVEA

- Hugh to EY hepi, ISI tripped 

- Hugh to EX,  STS rezero

- Chris Biwer, done with CW injection changes

- cleared CDS CRC error

- LVEA sweep - all clear

Title: Ops Day Shift - Mid-shift Update, 22:22UTC

State of H1: lock in DRMI when I started my alog, now in Low Noise

Assistance: Kiwamu, Jenne, Ed

Summary: Y arm alignment has been very sensitive to ETMY alignment, and has needed special attention a couple times today.

Details:

In locking the arms in green, after maintenance, I was able to get Y arm to 0.85 in power, but that alignment was not good for green WFS, so killed the arm.

I chased the changing alignment every time WFS engaged even briefly.

Kiwamu and Jenne diagnosed this as a WFS issue, and driving the WFS issue is was a misalignment in ETMY.

I was able to get the power in the Y arm up to 0.85, however that was optomized for a beam path in the Y arm that wasn't what the WFS wants.

After the Y arm green alignment / locking was corrected and WFS engaged, I offloaded the green WFS and started an initial alignment.

After the initial alignment was complete, the Y arm was again an issue, locking at 0.4.

Again Kiwamu alighned the Y arm, and this time using only ETMY, and arm powers and WFS centering were good.

OMC needed it's WFS cleared.

ISS Second Loop needed to be engaged by hand.

I continued the locking, and currently the IFO is in Low Noise.

LLO had called and said they would be down for awhile.

I'm going to finish doing a swept-sine through the INJ_HARDWARE filterbank from 5-500Hz. Previously I had only finished 500-2000Hz.

The IFO intent mode has been turned off.

This is WP#5595.