TITLE: 06/27 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing
INCOMING OPERATOR: Ed
SHIFT SUMMARY:  After the thunderstorm knocked us out of lock, it has been a struggle to relock.  After losing lock multiple time at CARM_ON_TR, I consulted with Keita.  We walked through the state line by line and made it successfully through, but then lost it again at SWITCH_TO_QPDS.  I decided to try an initial alignment to make sure it wasn't alignment that was hurting us.  After IA, I was able to make it past the previous problem areas and consistently to NOISE_TUNINGS where it again would suddenly lost lock.  I contacted Sheila and we walked through the NOISE_TUNINGS state line by line.  This time there were no issues and we made it to NLN.  I think the IFO just wanted a little attention.
LOG: 

Accepted SDF diff in screenshot.

The storm has passed and I am attempting to relock.  Struggling to get past CARM_ON_TR.

Almost definitely due to wind.  We are having a pretty nasty thunderstorm with winds to 50+ mph. 

I made a new SRCL FF filter, described in CSWG log 11217

While LLO was down briefly we had the chance to try it out and it seems like the performance is about 10dB better than the old feedforward in the band where we needed improvement, 20-50Hz.  This is now on, in the guardian and accepted in SDF. 

It seems to have reduced the srcl coherence, and perhaps had a tiny positive impact on the DARM noise. (3rd attachment)

For Sheila to load filter files for H1LSC.  LLO was down.

TITLE: 06/26 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: Corey
CURRENT ENVIRONMENT:
    Wind: 12mph Gusts, 8mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.16 μm/s
QUICK SUMMARY:  Observing for ~4 hours.  No issues handed off.

TITLE: 06/26 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: OBSERVING at 65Mpc.
INCOMING OPERATOR: Travis
SHIFT SUMMARY:

Other than accidental lockloss, H1 has performed well.  There was some commissioning time today.

Have a RED H1LSC on the CDS Overview related to Sheila's SRCL filter change (commissioning task).  When we are out of OBSERVE, we should Load Coefficients for H1LSC & then Sheila would like to ENABLE the filter.

Winds have been picking up & we did get up to 100degF.

Addressed some SVN critical file changes (ops checksheet task).
LOG:

• Happened to be watching roof camera & caught a few inbound trucks in the morning.  
  • 16:33:01:  Inbound gravel truck (10-20Hz noise)
  • 16:39:30:  Inbound truck not as big of a glitch
  • 16:44:45:  Inbound truck some small broad glitch
• 17:39 - 17:54:  Opportunistic Out-of-Observing Due to L1 Down:
  • Ran A2L
  • Allowed access to Diode Room (dust monitor restart & grabbing data from computer)
  • ASC Filter work (Sheila w/ Keita permission)
  • Engaging ISS 3rd Loop (Sheila)---This caused lockloss
  • Tagged this as "CALIBRATION" for Observatory Mode
• 17:54:  Relocking  (tagged partially as CALIBRATION & then COMMISSIONG)
  • Bounce/Roll Mode test @VIOLIN_MODE_DAMPING_1 (Patrick)
  • COMMISSIONING:  ASC Filter Work @DC_READOUT (Sheila)
• 18:45:  OBSERVING
• 19:00-20:15 Cheryl covering shift.
• 19:24-19:30:  COMMISSIONING:  ASC Filter Work @NLN (Sheila)
• 19:30:  OBSERVING
• 19:36 Phone call received for periodic Hanford Test
• 20:37-21:24 Checking vacuum dust monitor pumps at End Stations (Jeff)
• 21:06-22:38 Work on MX Scroll Pump for Purge Air/Compressor (Gerardo)

John, Bubba

Some LSB temperatures were in alarm and after investigating we found the chiller to be running on one of two circuits only. After resetting several circuit breakers the unit has started up and appears to be running normally again. The chilled water temperature had risen to ~65F and has now fallen back to ~46F. We are not sure what was wrong but one fan controller was off. This would have generated the "high condensor pressure" fault which was recorded.

Sheila, Jenne, Keita

Because of problems over the weekend with the CSOFT instability, we have engaged the ISS 3rd loop again.  It will come on using the IMC lock guardian at the begining of the INCREASE_POWER state, and stay on in low noise. Turning it on when the ISS was already DC coupled caused our lockloss around 17:30 UTC.

Over the last week I have been slowly adjusting rolls offs and filters in ASC to make sure that ASC is not limiting our DARM noise above 20Hz. The first attached screenshot shows a before/after comparison of the largest arm control signals. 

In the process I got loop measurements, which I am attaching here for reference although they were made before the changes. 

The loops which I changed were: 

CSOFT P: I rolled off the control filter earlier, swapping FM4 (cntrl2) for FM8 (cntrl)

DHARD P: I modified the roll off filter to be a little more aggressive. (FM1 ELP10b replaces FM4 ELP10)

DHARD Y: I changed the 25W compensation filter for one that gives us a little more phase near our ugfs and more gain at low frequencies. Then I made the roll off more aggressive.  So FM2 (s25W) and 3 (ELP10) replace FM9 (25W) and FM1 (cutoff40W)

CHARD P:I changed the cut off filter a little. (ELP10)

These changes are in the guardian and have been accepted in SDF.

   Check and adjust pressures and temperatures on the three dust monitor vacuum pumps. All within spec. Pump discharge filters show no increased dust accumulation. 

Chandra, Dave:

Chandra requested that on the vacuum pressures web striptool the channel PT210B be replaced with PT243B, and PT310B be replaced with PT343B. This I have done, the old and new channel lists are shown in the attachment.

Attached are the VPW desiccant plot with this month's added data.  Nothing out of the ordinary shown.

   The dust monitor in the Diode Room is hung, (no response to remote commands). When into Diode Room and power cycled the unit. Ran zero count test and flow rate check. Both tests are within spec. 

   After the power recycle of the dust monitor the unit is still hung up. Need to recycle the comptroller to recover remote communications. Fillberto will power cycle the comptroller during Tuesdays window.   

Attached are spectra for HAM and BSC ISI CPS sensors.

The xterm window did not display any that were over threshold.

Commissioning:  Mostly done, but there is some remaining ASC work.  (Keita & Sheila?)

Tues Maintenance Plans:  See photo for list for tomorrow.

Would like Maintenance to be over by noon to allow for LHO All Hands Meeting.

Weekend Summary:  Relatively successful weekend with coincident running for Virgo's Engineering Run (which should now be over, awaiting email).  Here are summary points from Keita:

• Successful test of rapid response for Virgo
• One step closer to OBSERVING with three multiple-km interferometers for end of O2.
• Virgo hopes to get to 15Mpc (currently at 8-10Mpc).

Laser Status:
SysStat is good
Front End Power is 33.98W (should be around 30 W)
HPO Output Power is 157.3W
Front End Watch is GREEN
HPO Watch is GREEN

PMC:
It has been locked 4 days, 3 hr 15 minutes (should be days/weeks)
Reflected power = 16.56Watts
Transmitted power = 56.13Watts
PowerSum = 72.69Watts.

FSS:
It has been locked for 0 days 3 hr and 5 min (should be days/weeks)
TPD[V] = 3.142V (min 0.9V)

ISS:
The diffracted power is around 4.3% (should be 3-5%)
Last saturation event was 0 days 3 hours and 14 minutes ago (should be days/weeks)

Possible Issues:

I don't see anything from the report.

TITLE: 06/26 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
OUTGOING OPERATOR: Ed
CURRENT ENVIRONMENT:
    Wind: 13mph Gusts, 10mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.16 μm/s

useism took a quick step up between 22:00 - 3:00 to just above the 50th percentile (still low).  See an odd jump up for EY low freq seismic noise at about 14:30utc (no incursions seen on Access System & winds...well, there is a small increase up to 15mph...that is probably it:  local EY wind event.
QUICK SUMMARY:

Ed passed on some PRMI alignment tweeks he tried last night.  L1 has just rejoined us.  Virgo has been down for 7hrs (perhaps their Engineering run is over?).

TITLE: 06/26 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY:
LOG:

7:25 First locking attempt resulted in NLN for about 5 seconds

7:41 Second attempt: Lockloss at CARM_ON_TR

8:18 Third attempt: After much diddling with PRMI and, basically all PRC optics, I got a better alignment which resulted in A good NLN lock.

8:30 Large glitch

8:33 Bounce modes are still above 10e-15 but coming down. However, there are abnormally high resonances between 10Hz and slightly above roll mode freqs.

08:20 Intention bit Undisturbed

12:56 Lockloss. Nothing obvious

13:43 H1 back into Observing mode

14:34 Spoke to Jeremy at LLO. They're getting aligned and ready to re-lock.

12:56UTC Lockloss

13:43 H1 back to Observing