MID-SHIFT SUMMARY: Making this summary a few minutes early. Just got a report of a 5.3 event near Taiwan that’s supposed to roll a .47µm/s R- wave through here in about 20 minutes. So far I’ve only seen one glitch and that seemed to be coincidental with LLO coming out of lock. Wind has been calm and µSeism was starting to trend downward slowly. I may be starting to see early signs of .03-.1Hz band z-axis starting to increase. Otherwise, everything has been just peachy!

TITLE: Oct 18 EVE Shift 23:00-07:00UTC (04:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

OUTGOING OPERATOR: Patrick

QUICK SUMMARY:IFO in Observing mode ~76Mpc. All lights in LVEA, PSL and M/E stations are off. Wind is ≤10mph. EQ sei plot is back to nominal after quake that caused most recent lockloss. Microseism plot Z-axis is elevated .25microns/s. CW injections are running. Calibration lines are on.

TITLE: 10/18 [DAY Shift]: 15:00-23:00 UTC (08:00-16:00 PDT), all times posted in UTC
STATE Of H1: Locked. Observing @ ~76 MPc.
SUPPORT: None
SHIFT SUMMARY: Recovered from earthquake in Tonga.
Seismic in 0.03 - 0.1 Hz recovered from earthquake but then trended up to .1 um/s at end X and end Y. Seismic in 0.1 - 0.3 Hz appears to be settling between .1 and .8 um/s. Can hear what may be the wind on the side of the building in the control room. Came up to about 20 mph and is now decreasing.
INCOMING OPERATOR: Ed
ACTIVITY LOG:

16:16 - 16:22 UTC Stepped out of control room
19:17 - 19:30 UTC Stepped out of control room

21:33 UTC Vern taking family to X arm overpass

Andy, Josh

We've developed a tool to keep an eye out for problems in the SUS coil driver electronics like with PRM M3 (alog).  When a coil driver goes bad, it can be hard to work out which one is the culprit because the feedback makes many degrees of freedom glitch. But the bad coil will have glitches that are not in the drive signal, hence the coherence between the analog readback and the drive signal will drop.

This tool plots the spectra of the NOISEMON and MASTER_OUT channels, and their coherence, for the four quadrants of many different SUS channels. From these, it should be possible to check if there are any unexpected lines in the coil driver output, and whether it's not correctly following the drive signal. It's also possible to check the health of the noisemons themselves.

The result is attached for Oct 17 8:00 UTC. We'll be looking through this and following up on any problems. The code doesn't yet deal nicely with channels that have no drive signal. Those will just be left blank. The code is Python and requires gwpy; it is available on github as noismon_check.

Moved ETMX pitch from 2.4 to 2.7 to lock the X arm on green.
Found IR by changing ALS DIFF from -900 to -3126. Guardian found it in later attempts.
Had trouble staying locked on DRMI.
Went from LOCK_DRMI_1F to LOCK_PRMI. Had trouble locking on PRMI. I think I started to move the BS and PRM. Locked on PRMI. Moved BS and PRM. Went to LOCK_DRMI.
Stopped at DC readout and increased the PSL ISS diffracted power from ~6% to ~8.6% by changing the REFSIGNAL from -2.04 to -2.02. (Was getting diffracted power is low messages)
Ran the a2l script.
Back to observing mode.

0.03 - 0.1 Hz seismic band has still not completely recovered from the earthquake. Is around .02 - .1 um/s.
0.1 - 0.3 Hz seismic band has trended up to around .1 - .3 um/s.

Range is around 76 MPc.

Likely seismic. We made it through the first ~12 min of an initial jump in the 0.03 - 0.1 Hz seismic band but it spiked up to 2 - 3 um/s around the time of the lock loss.

From USGS: 6.0 magnitude 66km ESE of Hihifo, Tonga 2015-10-18 16:18:34 UTC 10.0 km deep

Terramon did not report the earthquake until after the lock loss.

SUS S_R_M saturating (Oct 18 16:40:56 UTC)
SUS S_R_M saturating (Oct 18 16:40:58 UTC)
SUS E_T_M_Y saturating (Oct 18 16:40:58 UTC)
SUS S_R_M saturating (Oct 18 16:41:02 UTC)
SUS S_R_M saturating (Oct 18 16:52:57 UTC)
SUS E_T_M_X saturating (Oct 18 16:52:57 UTC)
DRMI Unlocked (Oct 18 16:52:57 UTC)
Intention Bit: Commissioning (Oct 18 16:52:57 UTC)
ISC_LOCK state: DOWN (Oct 18 16:53:06 UTC)
SUS OMC SW watch dog tripped (Oct 18 16:53:11 UTC)
SUS OMC SW watch dog tripped (Oct 18 16:53:19 UTC)

TITLE: "10/18 [OWL Shift]: 07:00-15:00UTC (00:00-08:00 PDT), all times posted in UTC"

STATE Of H1: Observing at ~80 Mpc for 16 hours 50 minutes.

SUPPORT:

SHIFT SUMMARY: Microseism continues to rise (about to cross over the first dashed line on the FOM). Nominal seismic activity in EQ band. Wind speed fluctuate between 5-10 mph through the night. LLO made it back up in the range plot but GWIstat says LLO status is "Not OK".

INCOMING OPERATOR: Patrick

ACTIVITY LOG:

19:36 A GRB alert. LLO isn't up, unfortunately.

~14:30 Patrick arrived

TITLE: 10/18 [DAY Shift]: 15:00-23:00 UTC (08:00-16:00 PDT), all times posted in UTC
STATE Of H1: Observing @ ~ 77 MPc.
OUTGOING OPERATOR: Nutsinee
QUICK SUMMARY: From the cameras the lights are off in the LVEA, PSL enclosure, end X, end Y and mid X. I can not tell if they are off at mid Y. Seismic in 0.03 - 0.1 Hz band is around .02 um/s. Seismic in 0.1 - 0.3 Hz band is around .2 um/s and has been trending up. Winds are less than 10 mph.

Still observing at ~76 Mpc. We had one GRB alert at 09:36:44 UTC but LLO was (and is) still down. I contacted LLO and they have received the alert as well but didn't sound like they could get the ifo up anytime soon. Microseism slowly increasing. Seismic activity in EQ band is nominal. Wind speed ~10mph. 

TITLE: Oct 18 OWL Shift 07:00-15:00UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Observing at ~78Mpc

OUTGOING OPERATOR: Ed

QUICK SUMMARY: The ifo has been locked 9 hours. Nominal seismic activity. Wind below 10mph. LLO is still down.

TITLE: Oct 17 EVE Shift 23:00-07:00UTC (16:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

LOCK DURATION: ~8hr50min

INCOMING OPERATOR: Nutsinee

ACTIVITY LOG:

23:05 Chris left the site

23:06 Jordan arrived on site

04:06 Wind is picking up to ~20mph. Loss of range is about 5Mpc on the hour . 75Mpc

05:35 Wind is dying back to ≤ 10mph range has returned to 80Mpc

SHIFT SUMMARY: IFO locked for my entire shift. Wind speeds rose for about 2 hours and it took a few Mpcs off the range but the range returned after wind died back. Range 76Mpc

SUS E_T_M_Y saturating (Oct 17 23:06:12 UTC)

SUS E_T_M_Y saturating (Oct 17 23:06:13 UTC)

SUS E_T_M_Y saturating (Oct 18 23:20:02 UTC)

SUS E_T_M_Y saturating (Oct 18 23:23:28 UTC)

SUS E_T_M_Y saturating (Oct 17 23:39:27 UTC)

SUS E_T_M_Y saturating (Oct 17 23:54:12 UTC)

SUS E_T_M_Y saturating (Oct 18 02:56:08 UTC)

SUS E_T_M_Y saturating (Oct 18 03:20:42 UTC)

SUS E_T_M_Y saturating (Oct 18 05:46:47 UTC)

MID-SHIFT SUMMARY:

Nothing out of the ordinary to report. Wind is calm. Sei and µSei is calm. A few ETMY saturations. Locked now for 5hr21min. @ 78.8Mpc. From what I can tell Livingston is down and in "Maintenance" Observatory Mode. I haven't seen them up once during my shift.

TITLE: Oct 17 EVE Shift 23:00-07:00UTC (16:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

OUTGOING OPERATOR: Patrick

QUICK SUMMARY:IFO in Observing mode ~80 Mpc. All lights in LVEA, PSL and M/E stations are off. Wind is ≤10mph. EQ sei plot is back to nominal after quake that caused most recent lockloss. Microseism plot is steady at ~.1microns/s. CW injections are running. Calibration lines are on.

TITLE: 10/17 [DAY Shift]: 15:00-23:00 UTC (08:00-16:00 PDT), all times posted in UTC
STATE Of H1: Locked. Observing @ ~79 MPc.
SHIFT SUMMARY: Chris turned on CW injection. Recovered from lock loss after earthquake with minimal effort. No report if company here to blow out sprinklers has left.
INCOMING OPERATOR: Ed
ACTIVITY LOG: Nothing additional to report.

Only intervention was to touch up BS pitch after locking DRMI.

Ran a2l script.

Appears to be an earthquake. Spike up to ~ .9 um/s in 0.03 - 0.1 Hz seismic band.

USGS:
5.2 magnitude 73km S of Isangel, Vanuatu 2015-10-17 21:02:32 UTC 59.0 km deep

SUS S_R_M saturating (Oct 17 21:32:20 UTC)
SUS E_T_M_Y saturating (Oct 17 21:32:20 UTC)
SUS B_S saturating (Oct 17 21:32:20 UTC)
SUS I_T_M_X saturating (Oct 17 21:32:20 UTC)
Intention Bit: Commissioning (Oct 17 21:32:20 UTC)
ISC_LOCK state: DOWN (Oct 17 21:32:30 UTC)
DRMI Unlocked (Oct 17 21:32:30 UTC)

Lock continues @ ~75 MPc.


16:58 UTC Went out of observing mode for Chris to turn on CW injection
16:59 UTC Chis turned on CW injection
17:01 UTC Went back to observing mode

18:36 UTC Red pickup truck leaving site from LSB (on camera)

18:54 UTC Sudarshan walking with parents from control room to top of bridge
19:47 UTC Sudarshan leaving site

SUS E_T_M_Y saturating (Oct 17 16:53:28 UTC)
SUS E_T_M_Y saturating (Oct 17 16:53:31 UTC)
SUS E_T_M_Y saturating (Oct 17 16:53:33 UTC)
Intention Bit: Commissioning (Oct 17 16:58:51 UTC)
CW Injection started (Oct 17 16:59:26 UTC)
Current time: Oct 17 17:00:00 UTC
Intention Bit: Undisturbed (Oct 17 17:01:56 UTC)
Current time: Oct 17 18:00:00 UTC
Current time: Oct 17 19:00:00 UTC

Chris, Patrick

I am going to turn the CW injections back on at H1.

We are currently in single-IFO mode right now. And since this is the first time we are going to turn these back on, as a precaution I will ask Patrick (the operator on shift) to turn the intent mode off. The intent mode should only be off for a couple minutes at most. I will make an aLog entry when this work is done and the intent mode is back on.

To do this we will:
  * Turn the intent mode off
  * Turn off the output of the continuous injection filterbank More specifically turn off INJ_CW and INJ_HARDWARE. There is a startup transient in INJ_HARDWARE that we do not want to enter into the ESD
  * log into h1hwinj1/ on a work station browser
  * start psinject using the monit web interface
  * After a short time (a few seconds) turn on the output of the continuous injection filterbank so we don't inject the startup transient
  * Turn the intent mode back on

The attached plots show the inspiral range integrand, and cumulative integral, for a stretch of recent H1 strain data. This is just the standard integration of the strain noise power, weighted as (frequency)^(-7/3). I was also interested in the impact the 35-40 Hz calibration lines have on the range calculation, so the plots include a cumulative integral curve for which the calibration lines have been artificially removed from the strain spectrum (the strain noise in the 35-38 Hz band was replaced with the average strain noise at nearby frequencies). These curves (magenta) show that the calibration lines reduce the range calculation just a bit -- by just less than 1 Mpc.

The inspiral range for the spectrum used is 75 Mpc. 90% of the total is accumulated by 150 Hz; the second plot thus shows the same data from 0-150 Hz. At the lower frequency end, 10% of the total range comes from the band 16-26 Hz.

Executive summary: 

 In regard to narrow lines, early O1 data resembles early ER8 data: a pervasive 16-Hz comb persists throughout the CW search band (below 2000 Hz); there is a notable 1-Hz comb below 100 Hz (0.5-Hz offset); and other sporadic combs persist.
 On the other hand, there are distinct improvements: noise floor is cleaner nearly everywhere and substantially lower in the 10-70 Hz band; non-linear upconversion around quad violin modes and harmonics is much reduced; some combs and isolated lines have disappeared; and the OMC alignment dither frequencies have moved out of the CW search band (hurray!).
 Oh the third hand, new artifacts have appeared or strengthened: a sporadic 8-Hz comb suspected before is confirmed; a 1-Hz comb (no offset) has emerged below 70 Hz; a broad bulge appears in the 1240-1270 Hz band.


Details: 

Using 104.5 hours of FScan-generated, Hann-windowed, 30-minute SFTs, I have gone through the first 2000 Hz of the DARM displacement spectrum (CW search band) to identify lines that could contaminate CW searches.
This study is very similar to prior studies of ER7 data and ER8 data, but since this is my first O1 report, I will repeat below some earlier findings.

Some sample displacement amplitude spectra are attached directly below, but more extensive sets of spectra are attached in zipped files. One set is for O1 sub-band spectra with labels (see code below), and one set is an overlay of early ER8 spectra (50 hours) and the early O1 spectra. As usual, the spectra look worse than they really are because single-bin lines (0.5 mHz wide) appear disproportionately wide in the graphics

A flat-file line list is attached with the same alphabetic coding as in the figures.

Findings:

 A 16-Hz comb pervades the entire 0-2000 Hz band (and well beyond, based on daily FScans)
 A typically much weaker and sporadic 8-Hz comb (odd harmonics) is also pervasive - previously suspected, now confirmed (all harmonics are labeled in figures, even when not visible)
 A 1-Hz comb with a 0.5-Hz offset is visible from 15.5 Hz to 78.5 Hz (slightly wider span than before)
 A new 1-Hz with zero offset is visible from 20.0 Hz to 68.0 Hz
 A 99.9989-Hz comb is visible to its 8th harmonic (was previously visible to its 13th harmonic)
 The 60-Hz power mains comb is visible to its 5th harmonic (was previously visible to its 9th harmonic)
 There is a sporadic comb-on-comb with 0.088425-Hz fine spacing that appears with limited spans in three places near harmonics of 77, 154 and 231 Hz (ambiguity in precise fundamental frequency)
 There is a 31.4149-Hz comb visible to its 2nd harmonic
 The OMC alignment dithers have been moved to above 2000 Hz (thanks!)
 Upconversion around the quad violin modes and their harmonics is much reduced, although the strengths of the higher harmonics themselves remain high. To be more specific, the fundamental and higher harmonics of the upconversion itself (integer harmonics) due to the fundamental violin harmonics are highly suppressed, while the higher harmonics of the violin modes themselves  (not integer harmonics)  remain high. 
 A number of previously seen combs are no longer apparent:  59.3155 Hz, 59.9392 Hz, 59.9954 Hz and 75.3 Hz
 A variety of single lines have disappeared, and new ones have appeared (see attached line list) 
 Compared to early ER8 data, the noise floor is slightly lower in most of the band and significantly lower in the 10-70 Hz band, but there is a significant new bulge in the 1240-1270 Hz band


Line label codes in figures:

b - Bounce mode (quad suspension)
r - Roll mode (quad suspension)
Q - Quad violin mode and harmonics
B - Beam splitter violin mode and harmonics
C - Calibration lines
M - Power mains (60 HZ)
s - 16-Hz comb
e - 8-Hz comb (odd harmonics)
O - 1-Hz comb (0.5-Hz offset)
o - 1-Hz comb (zero offset)
H - 99.9989-Hz comb
J - 31.4149-Hz comb
K - 0.088425-Hz comb
x - single line

Figure 1 - 0-2000 Hz (Early O1 data with line labels)
Figure 2 - 20-100 Hz sub-band (shows complexity of combs below ~70 Hz
Figure 3 - 1300-1400 Hz sub-band (shows how clean the noise floor is away from 8-Hz, 16-Hz lines at high frequencies
Figure 4 - 0-2000 Hz (Early ER8 and O1 data comparison, no labels)

Attachments:
* Zip file with miscellaneous sub-band spectra for early O1 data (with line labels)
* Zip file with sub-band spectra comparing early ER8 and early O1 data
* Flat-file list of lines marked on figures