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

Replaced CP8 fuses to fix LLCV actuator after discovering actuator not responding to manual stroke.

No fuse LED indicator lights were lit at vacuum rack in EX VEA, so I needed to use cell phone while laser locked (sorry!) to text Kyle for wiring diagram locations. I replaced both fuses. Old fuses test good. Guessing that during actuator modification on Tuesday when fuses were pulled and plugged back in there was a bad connection.

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 15Mpc
OUTGOING OPERATOR: TJ
CURRENT ENVIRONMENT:
    Wind: 6mph Gusts, 4mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.17 μm/s
QUICK SUMMARY:

• H1 locked for 2+ hours
• range trended down, then a large glitch, still locked

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 67Mpc
INCOMING OPERATOR: Cheryl
SHIFT SUMMARY: One lock loss that was coincident with an earthquake, but I'm not sure if that was the cause or not. Using the lockloss tool i looked at different SEI and ASC channels, and there is an earthquake seen, but not nearly as big as other ones that I've seen us ride through. Relocked with no issues, but our range does seem to be trending down. Chandra had to replace a fuse for CP8 at EX which is in the VEA. I left us in Observing incase she was quiet enough, but hopefully DetChar can check to make sure.
LOG:

• 17:55 Kyle to MY
• 18:27 Kyle back, but leaving again with a tape measure
• 18:56 Kyle back
• 21:30 Fil, Alfredo, Elizabeth running cables from the server room to the valve room in the OSB.
• 21:39 Jason to MY
• 22:55 Chandra to EX to look at CP8
• 23:15 Chandra headed back, but then will be returning to replace a fuse in the EX VEA. This is necessary to keep CP8 from overfilling overnight.
• 23:26 Jason back
• 23:51 Chandra entering EX VEA to swap out a fuse.
• 00:07 Chandra out. She used her phone while in the VEA, I imagine that this may show up in the data so I am tagging DetChar since I left it in Observing. BRS didn't even notice her, and the BLRMS only show a slight sign of someone in there.

The Violins and Bounce modes are still a bit high, but they are damping down. I had to accept a TCSCS diff another for SYSECATC1PLC2, IM-REFL_SERVO_INGAIN  I attached a screenshot of below.

There was an earthquake at the same time as the lock loss (5.2 in Fiji) but the velocity only reached about 0.1 um/s on the 0.03-0.1 so I can't say for sure it that was the cause yet. Control signals were showing signs of a struggle for a few minutes before the lockloss.

Severnaya Zemlya

• EQ seen at: 
  • USGS: Listed as occurring at 20:13UTC
  • SEIS BLRMS: ~20:45utc velocity of 0.08um/s (0.03-0.1Hz)
  • Terramon: R-Wave arrival at 20:38UTC velocity of 1.18um/s
• Magnitude: 5.0
• Location: Severnaya Semlya
• Lock Status: H1 & L1 rode through it.

Fiji

• EQ seen at: 
  • USGS: Listed as occurring at 21:10UTC
  • SEIS BLRMS: ~22:00utc velocity of 0.1um/s (0.03-0.1Hz)
  • Terramon: R-Wave arrival at 16:02UTC velocity of 0.9um/s
• Magnitude: 5.2
• Lock Status: H1 Lockloss, L1 rode through it.

• There may be some time today for some commissioning work coincident with PEM work at LLO.
• SEI - Tuesday will be replacing EY STS2 with T240
• CDS HW - Run a fiber from server room to valve room this afternoon.

FAMIS 6511

Added 75 mL H2O to the crystal chiller. There were no alarms on the diode chiller. Both canister filters appeared clear.

ETMY P is only one that may need recentered soon. Everything else looks good to me.

TITLE: 02/23 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 68Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY:
Nice quiet shift with a couple of quakes which we drifted through no worse for wear.

LOG:

• 8:39 PI Mode 28 rung up.  I didn't have much luck bringing it down, but it eventually came down (Mode27 rose but also went down mostly on its own).
• 9:09:15 Big broadband glitch observed
• 12:35 4.8 Tonga quake shook us a little for 4-5min (as seen on Tidal signals), but no problems.
• 15:45 H1 rode through a 5.6 Papua New Guinea quake.

• EQ seen at: 
  • USGS: Listed as occurring at 15:11UTC
  • SEIS BLRMS: ~15:45utc velocity of 0.25um/s (0.03-0.1Hz)
  • Terramon: R-Wave arrival at 16:02UTC velocity of 1.7um/s
• Magnitude: 5.6
• Location: Papua New Guinea
• Start time: ~15:45UTC
• Lock Status: H1 & L1 rode through it.

TITLE: 02/23 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 70Mpc
OUTGOING OPERATOR: Corey
CURRENT ENVIRONMENT:
    Wind: 4mph Gusts, 3mph 5min avg
    Primary useism: 0.02 μm/s
    Secondary useism: 0.16 μm/s
QUICK SUMMARY: 6 smaller earthquakes have been shaking the ground here in the last24hours, but only one knocked us out of lock. up nor for 8hrs at 68Mpc.

Humming along even through a decent-sized quake in Mexico.  Other than a couple glitches, range is a steady 70Mpc.

Dealt with a MODE28 earlier, but it seemed to have calmed itself down on its own.

• EQ seen at: 
  • USGS: Listed as occurring at 09:37utc
  • SEIS BLRMS: ~10:10utc velocity of 0.2um/s (0.03-0.1Hz)
  • Terramon: ~10:10utc, R-Wave arrival at 10:07utc velocity of 0.97um/s
• Magnitude: 4.8
• Location: Mexico
• Start time: 05:50utc local
• Lock Status: H1 & L1 ride through it.

I just did EX to complete the set.

Receiver was off between the times 12:32:58 and 12:41:59 PST

EX CNS-II receiver label (on bottom of unit):

model: CNSC02-C

Serial number: 404358

Options: 2