model restarts logged for Thu 23/Feb/2017 - Wed 22/Feb/2017 No restarts reported

model restarts logged for Tue 21/Feb/2017
2017_02_21 12:15 h1broadcast0
2017_02_21 12:15 h1dc0
2017_02_21 12:15 h1fw0
2017_02_21 12:15 h1fw1
2017_02_21 12:15 h1fw2
2017_02_21 12:15 h1nds0
2017_02_21 12:15 h1nds1
2017_02_21 12:15 h1tw1

maintenance day, DAQ restart to reintroduce HWS slow channels.

In response to alog34290, I updated the script that creates the channel list and the actual channel list in the autoBurt.req

Heather, Vaishali, Evan, Kiwamu, Jeff B.
DQ shifter: Beverly

During her DQ shift, Beverly noticed excess noise in the SUS bounce/roll modes beginning at Feb 22 13:00 UTC onward, and asked if it might be correlated to the ground motion (see Beverly's Wed Feb 22 DQ shift summary and attached Feb 22 plots). There was indeed a large gust of wind that hit LHO at around 13:00 UTC, as well as a degradation in alignment in the YAW degree of freedom, where the YAW signal was about 0.7 above the reference line (this degradation would also add to low frequency noise). The reason for the excess noise was suspected to be a combination of both, so Jeff made adjustments to the A2L, after which we see that the amplitude of bounce/roll modes have dropped off at around Feb 23 01:00 UTC (or Feb 22 17:00 PST), which is when we ran the A2L (see attached Feb 23 plots).

Beverly's alog entry for her DQ shift can be found here: 34364

Checked the mass centering on the T240 Deployed Wednesday, but I did not center them.

Day                U       V       W

Wednesday 0.12  0.09  0.02V

Friday          -.11   -.22   -.32

So the warm up of the springs is evident on the mass positions but it is still within comfortable range.

It will need re-centering when we put the T240 into the BRS enclosure (Tuesday.)

• EQ seen at: 
  • USGS: Listed as occurring at 17:28utc
  • Seis BLRMS:  ~17:30utc
  • Terramon:  18:15 arrival estimate
• Magnitude: 6.9
• Location: Fiji
• Lock Status: H1 & L1 both lost lock.

We were already in Commissioning but then a 6.9 from Fiji rolled through.

TITLE: 02/24 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 69Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.18 μm/s
QUICK SUMMARY: 2.5hours lock at 70Mpc. Hopefully the earthquakes dont continue today.

TITLE: 02/24 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 66Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY:

Another nice quiet shift other than a decent-sized quake from the other side of the hill (off north Vancouver island).
LOG:

• 8:19  Diag RESET for h1iopasc0
• 10:53 Alaska EQ passes by (only observed via tidal signals)
• 12:33 Lockloss due to 4.9 Canada EQ
  • 13:32 Back to OBSERVING
• LLO will be going to COMMISSIONING at 9amPST.  We have Work Permits to do the same when Commissioners are ready.

• EQ seen at: 
  • USGS: Listed as occurring at 12:28utc
  • Seis BLRMS:  12:31utc
  • Terramon:  12:32 arrival estimate
  • Tidal signals start seeing around 12:30utc
• Magnitude: 4.9
• Location: Canada, Point Hardy again
• Start time: 12:30utc local
• Lock Status: H1 dropped first (ending ~14hr lock) and then L1.

12:31:  tidal signals elevate

12:33:  Lockloss due to 5.0 EQ from India

------

Actually this is another Point Hardy, Canada aftershock.

First attempt at locking up had the ASC control singals ringing up around the ENGAGE_REFL_POP_WFS step.  This is a new feature to me.

• EQ seen at: 
  • USGS: Listed as occurring at 10:24utc
  • Terramon: reported r-wave to arrive at 10:45utc
  • Seismic BLRMS: 10:37utc it begins to ramp up
  • Tidal showed oscillations at 10:53utc
• Magnitude: 4.9
• Location: Alaska
• Start time: 10:37utc local
• Lock Status: H1 & L1 ride through it.

Just got a call in from Mike L. inquiring about whether we had a power outage on the site (we are fine).  Sounds like at around 2:15am local time part(s) of Kennewick had an outage (Mike had reported not being able to see some CDS webpages (I was able to look at them from my laptop via the GC network).  At any rate, luckily no issues to deal with here *knock on wood*.

TITLE: 02/24 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 68Mpc
OUTGOING OPERATOR: Cheryl
CURRENT ENVIRONMENT:
    Wind: 3mph Gusts, 2mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.16 μm/s
QUICK SUMMARY:

All is quiet on the H1 front.  Cleared a TIMING error on the h1iopasc0 front end (same as last night).  L1 was down and very quickly came back up 14min ago and we are back to double coincidence.

Now to go through the Ops Checksheet.

TITLE: 02/24 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 66Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY:

• not much activity
• one earthquake, H1 stayed in Observe, alog 34358
• one break from Observe, Operator error, alog 34360

• FAMIS Task 8034: trend BRSX and BRSY drift over about 7 weeks.
• BRSX is holding a value near zero, with few excursions.
• BRSY is trending downward, and it looks like that's been a trend, and current value is around -7500.

DQ shifter: Beverly

LHO fellows: Heather, Vaishali, Evan

• Excellent duty cycle averaging 86.8% over the three days including 100% on Wednesday and a remarkable 77% on maintenance Tuesday.
• The BNS range was very steady at around 70 Mpc with brief episodes of slightly lower range.
• An especially noisy period between 22:10 and 22:26 on Wednesday resulted from moving a forklift and roof walking during Observing (see alog 34330).
• Excess noise in h(t) appeared at around 13:00 on Tuesday and Wednesday that appeared to be correlated with a bump in ground motion and excess bounce/roll mode noise. On Wednesday, this could be related to a wind spike and a degredation of the YAW alignment observed at that time (see forthcoming alog from Heather). This correlation happened previously (see alog 32370 ) and was attributed to truck traffic on Route 10 near the entrance to the site. 
• Some noise visible as "towers" in the hourly h(t) spectrograms appear to be "blue mountains" aka "scratchy" of unknown cause.
  Full results may be found at https://wiki.ligo.org/DetChar/DataQuality/DQShiftLHO20170220.

I used an older diaggui template of mine and didn't realize it had excitation channels chosen for the IMs, so when I ran it, H1 was knocked out of Observe.

The attached plot suggests no actual injection happened, plot covers 2:48:00UTC to 2:50:00UTC.

Time out of Observe:

• Out of Observe at 02:48:52UTC
• back in Observe at 02:49:24UTC
• total of 32 seconds

Excitation Channels:

• H1:SUS-IM1_M1_OSEMINF_LL_EXC
• H1:SUS-IM2_M1_OSEMINF_LL_EXC
• H1:SUS-IM3_M1_OSEMINF_LL_EXC
• H1:SUS-IM4_M1_OSEMINF_LL_EXC

Monitoring from home.  Likely won't need to be addressed tonight