So after the long overnight-lock, H1 dropped out of lock mid-shift (Robert was at EY, but we were running ragged for the last few hours with fairly high low-frequency seismic motion).  

• Took over 3.5hrs to get back to Observing
• There were many types of issues, IMC would drop out, ALS locking was hit or miss, and then DRMI locking wasn't trivial~~And we watched our noisy envirnoment.
  • A word about this seismic motion.  We see useism slowly trend up and down without raising an eyebrow.  The odd occurrence last night/today is that the EQ band (0.03-0.1Hz) also slowly increased over the last 18hrs up to 0.3um/s.  (the normal behavior here is that it would stay flat, and only have "quick" increases due to EQs, wind gusts, or people walking around seismometers)
•  We tried switching to all 90mHz Blends, back to our "standard 45mHz", and currently have ALL 45mHz blends engaged.
• After 1-2hrs of locking, H1 finally made it!  Took it to Observing (after accepting with the 45mHz filters for the ETMs).

Note:

There were a few new tricks which Sheila taught me when we were working on locking H1 in these noisy conditions:

1)  When the ALSy was having trouble locking, we did a Clear History (yellow button on the ALS screen).  This then gave us a very misaligned Y-arm (but this was taken care of fairly easily by adjusting only yaw on only ETMy).

2) While waiting for PRMI, POP 18 & 90 looked pretty bad.  So, while in this state, the PRM was misaligned and then we adjusted the BS by eye while looking at ASAIR video.

These were two new tricks which I was not aware of.

TITLE: 1/16 Eve Shift: 00:00-08:00UTC (16:00-00:00 PDT), all times posted in UTC"

STATE Of H1: Observing + Hardware injection on going

OUTGOING OPERATOR: Corey

QUICK SUMMARY: POP_A_LF seems lower than usual and ratty. High Useism (above 90th percentile) and earthquake band. Big tidal fluctuations. Hardware injection has been scheduled to end at 6pm.

I've schedule more burst injections and CBC injections, these will begin at 20:00 PT (00:00 UTC). The last one will be at 21:40 PT (01:40 UTC).

Here is the updated schedule:

1137024017 2 1.0 burst_GPS_76.259_
1137025217 2 1.0 burst_GPS_76.262_
1137026417 2 1.0 burst_GPS_76.263_
1137027617 2 1.0 burst_GPS_76.264_
1137028817 2 1.0 burst_GPS_76.266_
1137030017 1 1.0 coherentbns1_1135135335_

FYI: I restarted the LDAS/DCS Disk2Disk script that copies raw data from the framewriter disks into the LDAS archive this morning, Jan. 16, at 10:04 am PST.

model restarts logged for Fri 15/Jan/2016 

No restarts reported. h1tw0 continues to be down waiting h/w repair.

Slushy snowy morning here on site with useism slightly trending up (above 90 percentile at 0.7um/s), and the EQ band actually has been trending up slowly over the last 12 hrs from ~0.05 up to 0.2um/s.  Winds are under 10mph.

H1 has been in Observing as TJ left it and it has been locked for 16hrs (for most of the night the range was hovering just under 80Mpc.  Now it has been around 75Mpc for the last 2 hrs.  On DARM, I can clearly see elevated noise in the 20-30Hz band, a line around 42Hz & also noise in between.  POP A on the PRMI striptool & tidal channels on their striptool show oscillations at ~0.4Hz.

I believe I see Robert pulling onto site (as I was chatting with Landry).

I've tried contacting LLO Control Room (TeamSpeak & phone), but perhaps someone has just stepped out of the CR (According to their Summary Page, they someone has been working on bringing L1 up).  Will touch base with them when they are available to coordinate double coincidence for a suite of hardware injections.  In the meantime, Robert will be taking H1 for PEM injections soon.  Robert has said that he can "stand down at any time to allow hardware injection work".  Robert will be heading to an End Station for his PEM work.

TITLE: 1/15 Eve Shift: 00:00-08:00UTC (16:00-00:00 PDT), all times posted in UTC"

STATE Of H1: Observing at 78Mpc for 7hrs

SHIFT SUMMARY: Had one small lockloss but it came right up.

INCOMING OPERATOR: none

ACTIVITY LOG:

• 00:25 Lockloss
• 00:31Switched ETMX X blends to the 45s
• 01:10 NLN
• 04:24 Observing

In full lock (with the POP beam diverter open), I rephased POPAIR9 so that the appearance of PRCL is maximized in I, and I rephased POPAIR45 so that SRCL is maximized in I (same strategy as was done for POP).

The changes are as follows:

• POPAIR9: 63° to 64°
• POPAIR45: −45° to −38°.

I don't think POPAIR is used for any LSC at any point during locking or initial alignment, so there should be no issue here.

Then I left the beam diverter open and redid the LSC sensing matrix measurement. Times as follows (2015-01-16 Z):

• PRM: 02:33:25 to 02:35:25
• SRM: 02:36:15 to 02:39:05
• BS: 02:40:35 to 02:42:35

I then left the beam diverter open and collected quiet data from 02:43:30 to 03:32:30. Kiwamu and I had discussed the possibility of cross-correlating the POP and POPAIR PDs in order to look for correlated vertex LSC noise below the PD shot noises (à la the usual DCPD technique for DARM). In the case of POP45Q (attached), the cross-correlation seems to show correlated noise out to high frequencies, at a level of a few below the POPAIR45Q shot noise.

Done with calibration for the day, but it will resume again in the morning.

Sheila, Jenne, Evan

We had another instance of the integrated ALS tidal offsets causing the IMC-F offloading to bump up against the rail.

We weren't sure how to turn on the bleed feature of the ALS filters, so we instead doubled the digital limiter on the COMM control filters.

I've schedule another 2 runs of the long burst injections and a CBC BNS injection for tonight. These will start at 20:10 CT (6:10 UTC), there are 5 burst injections and 1 CBC injection, meaning that the last one wil be at 23:50 CT (9:50 UTC).

Here is the updated schedule: 

1136952617 2 1.0 burst_GPS_76.259_
1136953817 2 1.0 burst_GPS_76.262_
1136955017 2 1.0 burst_GPS_76.263_
1136956217 2 1.0 burst_GPS_76.264_
1136957417 2 1.0 burst_GPS_76.266_
1136958617 1 1.0 coherentbns1_1135135335_
1136959817 2 1.0 burst_GPS_76.259_
1136961017 2 1.0 burst_GPS_76.262_
1136962217 2 1.0 burst_GPS_76.263_
1136963417 2 1.0 burst_GPS_76.264_
1136964617 2 1.0 burst_GPS_76.266_
1136965817 1 1.0 coherentbns1_1135135335_

Nominal Low Noise 01:10

Robert was running inj at the time, but I'm not sure if that was it or not. Still investigating.

After notifying the operator I drove past the CS @ 23:35 and arrived at Y-Mid station @ 23:38.  IFO was out of lock.
Started filling CP3 @ 23:39, opened the exhaust check valve bypass valve, then opened LLCV bypass valve 1 turn, started to notice flow @ 23:47. and closed the LLCV bypass valve @ 23:48.
5 minutes later I closed the exhaust check valve bypass valve.

Started driving back from Y-Mid @ 23:53, arrived at the CS @ 23:56.

TITLE:  1/15 DAY Shift:  16:00-00:00UTC (08:00-04:00PDT), all times posted in UTC     

STATE of H1:  Getting back to NLN for Robert

Incoming Operator:  TJ

Support:   Jenne (help with locking)

Quick Summary:

Robert had H1 for a good chunk of the day.  

Shift Activities:

• 17:18 Chris heading down Xarm to check on Enclosure sealing equipment
• 17:28-18:28 Betsy heading over to C&B warehouse for ~1hr
• 17:49 Switched to COMMISSIONING for Robert's PEM injection work.
• 17:51-19:50 Bubba heading to MY for Piping work
• 20:01  Back to OBSERVING
• 21:05  COMMISSIONING for Adam's Detchar injection which he ran remotely and with me on the phone with him.
• 20:09  Back to OBSERVING
• 22:17  Lockloss due to PEM Injection work (BS ISI tripped).  Tried locking, but the DRMI (& also PRMI looked pretty bad)
• 22:52-23:25 - Initial Alignment
• Gerardo made a trip out to MY's CP3 in the afternoon
• Handing over to Robert & TJ for the night

TITLE: 1/15 Eve Shift: 00:00-08:00UTC (16:00-00:00 PDT), all times posted in UTC"

STATE Of H1: Nominal Low Noise, calibration measurements ongoing

OUTGOING OPERATOR: Corey

QUICK SUMMARY: Wind <10mph, useism 0.5um/s, CW inj running.

Jeff K, Jeff B. , Jenne, TJ, Jim, Dave:

Around 4pm PST TJ reported that OMC had tripped and the watchdog could not be untripped. Jeff K. recommended a model restart. Unfortunately due to a communication problem we first mistakenly restarted the OMC model on the LSC front end (sorry OMC). Then we restarted the correct SUS-OMC model on SUSH56. This did not fix it. We then restarted all the models on SUSH56 (including the IOP). This did not fix it. We then stopped all models and only started IOP and SUS-SRM to do further debugging. (in the mean time the SWWD on the IOP had tripped SEI for HAM5 and HAM6). After some debugging we found that the PERL script sus/common/scripts/wdreset_all.pl was throwing an error about not finding the PERL CA LIBRARY. Jim tracked this down to a missing CaTools.pm perl module in the userapps/release/guardian directory. Turns out this file was removed from the SVN repository way back on 2nd March 2015 and the LHO working directory was only updated this afternoon by Jenne and TJ. This all nicely ties in with the watchdog resets working last night but not this afternoon.

In the mean time we had manually reset the watchdogs for SUS-SRM/SR3/OMC and SEI HAM5,6 and set the SDF back to OBSERVE for SUSH56IOP, SUSSRM/SR3/OMC and OMC.

For now we have manually copied the CaTools.pm file into userapps/release/sus/common/scripts to get the watchdog reset script working again. 

This raises an FRS:

A perl module which is used by the watchdog systems has been deprecated. The watchdog system should be changed to no longer use PERL and instead use PYTHON (or perhaps BASH for exceptionally simple scripts).