Ed mentioned a CRITICAL alarm yesterday for H0:FMC-CS_LVEA_REHEAT_2B_DEGF.  I'm seeing this not as a CRITICAL Alarm, but as an alarm for the AIRHANDLER, and it is MAJOR (i.e. RED).  Looks like it started alarming around midnight a few times (i.e. when it's been cold?).  Attached is a trend of relevant channels.  I will NOT contact Bubba/John since from Ed's alog it sounded like they are already on top of this.

O1 days 66 - 71. Quiet week, no restarts during maintenance Tuesday.

model restarts logged for Fri 27/Nov/2015 No restarts reported

model restarts logged for Thu 26/Nov/2015 No restarts reported

model restarts logged for Wed 25/Nov/2015 No restarts reported

model restarts logged for Tue 24/Nov/2015 No restarts reported

model restarts logged for Mon 23/Nov/2015 No restarts reported

model restarts logged for Sun 22/Nov/2015 No restarts reported

TITLE:  11/28 OWL Shift:  16:00-00:00UTC (:00-00:00PDT), all times posted in UTC     

STATE of H1:  Running at 78Mpc (Lock Clock = 16:43 as of 17:22utc)

Outgoing Operator:  Ed

Support:  Evan (Fellow)

Quick Summary:  Looks like a great night for Ed even with the ETMy saturations (I've had [3] big ones in my first 85min this morning).

useism looks like it's been inching up slightly (up maybe 0.02-0.05um/s?) over the last 12hrs.  It is a balmy 19degF out!

TITLE:    Nov 28 OWL Shift 08:00-16:00UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Observing

SUPPORT: N/A

LOCK DURATION: 15:20

INCOMING OPERATOR: Corey

SHIFT SUMMARY: Locked at 80Mpc+. Some ETMY glitches. Nothing to report environmentally.

ACTIVITY LOG:

15:54 Corey called. He’s running a bit behind due to chicken issues at Hugh’s place. He advised me to go ahead and leave if he’s not here by 16:00UTC. It was a good, coincidental night!

SUS E_T_M_Y saturating  (Nov 28 12:16:37 UTC)

SUS E_T_M_Y saturating  (Nov 28 14:22:26 UTC)

SUS E_T_M_Y saturating  (Nov 28 15:18:01 UTC)

MID-SHIFT SUMMARY: Locked at 80Mpc. Some ETMY glitches. Nothing to report environmentally. Steady as she goes.

SUS E_T_M_Y saturating  (Nov 28 09:17:47 UTC)

SUS E_T_M_Y saturating  (Nov 28 09:17:51 UTC)

SUS E_T_M_Y saturating  (Nov 28 09:37:30 UTC)

SUS E_T_M_Y saturating  (Nov 28 09:37:34 UTC)

SUS E_T_M_Y saturating  (Nov 28 10:58:21 UTC)

SUS E_T_M_Y saturating  (Nov 28 11:01:06 UTC)

Cheryl, Ed

Cheryl asked me to post these plots in the case that locking becomes dificult, especially in the "INPUT_ALIGN" and "FIND_IR" stages of aligning and locking. It seems that 3 days ago after a HAM2 ISI trip there was a 15µRadian shift in IM2 M1 pitch and ≈7 µRadian shift in IM1 M1 of the same. The plot also shows the compensation that IM4 has made which ultimately affects the beam pointing/alignment for the entire IFO. Should re-locking become difficult or not stable it's possible that IM1 and IM2 may need to be driven back to the values from when the shifts took place. How much shift is too much shift is still being discussed.

Please feel welcomed to correct any inaccuracies in this log as I'm relaying information from Cheryl who's knowledge of this exceeds mine, i believe.

Title: Ops Eve Shift, 00:00-08:00UTC (4:00-11:59PT)

Status of H1: locked in Observe, range is 81Mpc

Summary:  locked 7 hours 24 minutes, some ETMY saturations, one tour group, no other activity

ETMY Saturation:

• SUS E_T_M_Y saturating  (Nov 28 04:38:43 UTC)
• SUS E_T_M_Y saturating  (Nov 28 04:38:47 UTC)
• SUS E_T_M_Y saturating  (Nov 28 06:15:06 UTC)
• SUS E_T_M_Y saturating  (Nov 28 07:44:40 UTC)
   

TITLE: Nov 28 OWL Shift 08:00-1t6:00UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Observing 80Mpc

OUTGOING OPERATOR: Cheryl

QUICK SUMMARY: IFO is locked at NLN and Observing @ 80 Mpc. Seismic environment has quieted down from an earthquake ≈1.5 ago(rode it out quite well). Wind is quiet. Looking good to me. It also appears that NO hardware injectins are running at this time and CAL lines are ON.

Title: Ops Eve Shift, 00:00-08:00UTC (4:00-11:59PT)

Status of H1: locked in Observe, range is 80.2Mpc

Shift helpers: Patrick, who locked it up as a tour group came through, and Chris Biwer, LSC Fellow

Shift Update:

- locked in observe since 00:47:18UTC, Nov 28

- ETMY Saturation

• SUS E_T_M_Y saturating  (Nov 28 00:39:11 UTC)
• SUS E_T_M_Y saturating  (Nov 28 00:54:35 UTC)
• SUS E_T_M_Y saturating  (Nov 28 01:11:12 UTC)
• SUS E_T_M_Y saturating  (Nov 28 04:03:43 UTC)

- Gama Ray Burst

• Gamma Ray Burst  (Nov 28 03:59:57 UTC)

LHO's fourth-Friday public tour occurred on the afternoon of 11/27.  Arrival time at LSB = 3:00 - 4:00 PM.  Departure time = 4:45 - 5:15 PM.  Group size = ~30 adults & kids.  Vehicles at the LSB = ~12 passenger cars.  The group was on the overpass near 4:00 PM and in the control room from about 4:00 to 4:40.

Timing error on H1SUSETMY. Cleared with DIAG reset.
Testpoint open on H1LSC.
Tour in control room.

Earthquake has subsided.

ISI blends are on Quite_90.

TITLE: 11/27 [DAY Shift]: 16:00-00:00 UTC (08:00-16:00 PDT), all times posted in UTC

STATE Of H1: Trying to lock DRMI
SHIFT SUMMARY: Lost lock for unknown reason. Trouble relocking. Started initial alignment. Earthquake hit. Finished initial alignment. Trying to lock DRMI.
INCOMING OPERATOR: Cheryl
ACTIVITY LOG:

Lock loss
Got 'Align SR3 to offload M2 actuators' notification from SR3_CAGE_SERVO guardian.
M2 Test around 12000 in Pitch. Moved optic align in Pitch from 555.4 to 558.4 to bring M2 Test to around -5900.

Trouble locking ALS. Had to move TMSY mostly in PITCH.
Trouble locking X arm on green.
Cleared end X WFS history.
WFS seem to drive power down.
Went to LOCKED_NO_SLOW_NO_WFS.
Took ALS_XARM guardian to Auto.
Went to LOCKED_NO_SLOW_NO_WFS.
Using ETMX and TSMX was able to bring power in X arm to around .9.
Went to LOCKED_SLOW_W_ETM_WFS, lock loss, power in both arms dropped.
Took ISC_LOCK to INIT.
Moved ETMY in YAW.
Moved ETMX in PITCH.
Moved TMSX some, but didn't help.
Power in X arm is around .9. Power in Y arm is around 1.06. Going to CHECK_IR.

ALS-COMM guardian: brief 'alignment is bad not searching' notification, finally 'search for IR resonance by hand'.
ALS DIFF guardian: request and state is still on LOCKED. Something isn't right.

Starting initial alignment. May be faster in the long run.
ALS_X and ALS_Y have both reached INITIAL_ALIGNMENT state, but X arm power is oscillating around .8.
Let ASC loops converge for ~ 30 min. The ITMS were far off.
Offloaded green WFS.
COMM beatnote is oscillating < 2.
Noticed earthquake.

Waited long time for earthquake, it isn't completely settled, but will try moving on
Aligning PR3 to increase COMM beatnote
That worked very well, increased to almost 5
MICH_DARK_LOCKED did not work, the two beams oscillated further and further away from each other
Going back to input align
Input align is not locking
Trying MICH dark locked again
This time the beams converged
SRCY is not locking
Got H1:LSC-ASAIR_A_LF_OUTPUT to ~ 800 by moving SRM mostly in YAW
Finished initial alignment

Moved ETMY in PITCH and YAW to lock ALS
ALS DIFF: search for IR resonance by hand
Briefly locked DRMI, lost lock, went to down
ALS DIFF: search for IR resonance by hand
Back to trying to lock DRMI

• In general, the features seen during this DQ shift were already known. The IFO behaved as it had in previous days with no unusual issues. The average duty cycle (including the maintenance time) was 61% with some locklosses and difficulty in relocking at various times attributable to earthquakes, high winds, and high microseism.
• Lines at about 500 Hz and 2400 Hz (violin modes and butterfly mode respectively) were seen at the beginning of most locks. A line at about 300 Hz was seen on spectrograms with a narrowed (50 Hz to 600 Hz) frequency range.
• The 650 Hz wandering line (see alog) was present in locks 1, 2, and 4 on 23 Nov, absent in lock 3 on 23 Nov and during the lock on 24 Nov. It returned in the lock on 24 Nov at a higher frequency of about 670 Hz.
• Hveto results were available on 23 Nov and 24 Nov. The channel H1:ASC-X_TR_B_NSUM_OUT_DQ (second round winner on the 23rd and 4th round winner on the 24th) picked up ETMY saturations. Links to the Omega-scans for the loudest events in this class are provided in the complete report. The dominant (1st round winner) channel every day was H1:ASC-MICH_P_OUT_DQ. This channel picked up glitches located at around 5 Hz and unlikely to affect the searches.
• Nothing interesting was found in BNS and BBH loudest events.
• An excess noise of unknown origin was observed at around 70 Hz. It was strong on 25 Nov but could be seen at various intensitites in the narrowed (50 Hz to 600 Hz) frequency spectrograms back to 5 Nov when that plot first appeared in the Summaray Pages.

6.2
69km NNW of Taltal, Chile
2015-11-27 21:00:21 UTC 28.9 km deep

No clear cause. Nothing in seismic bands.