TITLE:  12/19 OWL Shift:  08:00-16:00UTC (00:00-08:00PST), all times posted in UTC     

STATE of H1:   Observing at ~80 Mpc.

Incoming Operator:  TJ

Support:  

Quick Summary:

The night was quiet. Except for the high useism and slow computer that was an issue for a while, I have nothing to complain.

Shift Activities:

15:32 Chris Biwer called control room regarding a hardware injection.

This morning's striptool flatline and computer slow down reports further strengthens the evidence that this problem is related to h1boot's NFS disk activity. Yesterday I stopped all running rsync backups of /opt/rtcds and started a single backup at 16:30 PST Friday. It took about 10 hours to complete, and finished around 02:00 this morning. This is around the time the EPICS data froze and Nutsinee reported workstation slow downs. I am monitoring EPICS freezes by looking at the Dolphin manager logs on h1boot, they shows freeze events around 16:30 yesterday and 02:00 this morning and none inbetween.

This rsync used to take only 20 minutes, I'll look into why it is now taking longer (a major file cleanup could be in order).

No linux workstation is reporting loss of NFS connection to this server at these times, looks like a general slow down which impacts diskless frontend computers more.

Investigation continues.

Long term fix is to install a new NFS server for /opt/rtcds post O1.

Here are the dolphin logs for this period of time (reporting when nodes come back)

Dec 18 2015 16:34:15 Fabric 0 status: All nodes are ok!

Dec 18 2015 16:34:28 Fabric 0 status: All nodes are ok!

Dec 18 2015 16:34:29 Fabric 0 status: All nodes are ok!

Dec 19 2015 01:51:09 Fabric 0 status: All nodes are ok!

Dec 19 2015 01:51:45 Fabric 0 status: All nodes are ok!

Dec 19 2015 01:51:46 Fabric 0 status: All nodes are ok!

• TITLE: 12/19 Day Shift: 16:00-00:00UTC (08:00-16:00 PDT), all times posted in UTC"

• STATE Of H1: Observing at 78Mpc for 9hrs

• OUTGOING OPERATOR: Nutsinee

• QUICK SUMMARY: useism is on the rise at 0.7 um/s right now, wind is minimal, PSL power at 21.9, blends are on the 45's everywhere so I will keep an eye on the EX ISI, possible earthquake about to hit us.
  

Max, Chris

We preparing to do a burst hardware injection using tinj. I will update this aLog when we add the injection to the schedule.

Still Observing. Very stable range. zero wind. Useism is trending slightly upward. The computers are no longer frozen. Violin modes are high but none seems to be ringing up. Seems like some of the modes get kicked in the wrong way everytime the ifo loses lock.

TITLE:    Dec 19 OWL Shift 08:00-16:00UTC (00:00-08:00 PST), all times posted in UTC

Outgoing Ops: Ed

Quick Summary: Useism is hanging at 90th percentile. Violin modes are relatively high (damping still turned off). Wind below 10 mph. Using 45mHz blen everywhere. Have StripTool running to monitor ETMs CPS sensors as Jim suggested (which Ed kindly passed on the information). The computer opposite to Ops station is very slow...

TITLE:    Dec 18 EVE Shift 00:00-08:00UTC (16:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

SUPPORT: Jason

INCOMING OPERATOR: Nutsinee

SHIFT SUMMARY:

After repeated locklosses waiting at various stages of the locking sequence after I had changed the blends to QUITE_90 as recommended. I decided to switch back to the 45mHz blends at the end stations. I let the IFO “cook” on ENGAGE_ASC_PART3 for a good long while before advancing. I can’t say conclusively that this change in the ISI blends did the trick, but the IFO went all the way to NLN/78Mpc and it’s been there ever since. EQ bands are nominal. The mean uSeism is slightly above the 90th percentile. Wind is calm. Handing off Locked IFO to Nutsinee.

ACTIVITY LOG:

04:34 Lockloss while at ENGAGE_ASC_PART3

05:00 Switched end station blends to Quite_90 (off axis) to see if locking would improve.

05:33  still no satisfaction locking. Lock breaks at DC_READOUT_TRANSITION, repeatedly. I put a call in to Sheila.

05:32 OMC SUS watchdog tripped.

05:53  it appears that when DC_READOUT_TRANSITION occurs that OMC_LOCK reports OMC not ready as it may still be in TUNE_OFFSETS.

06:05 Waited at ENGAGE_ASC_PART3 for OMC to move to READY_FOR_HANDOFF. Lockloss occured, this time, at the very next step (REFL_IN_VACUO)

06:21 Locklos occurred sitting on ENGAGE_ASC_PART3 Grasping at straws at this point. Haven’t heard back from Sheila.

06:51 FINALLY! Locked at NLN. Switched back to 45mHz blends at Ends. Had to manually start ISS second Loop

MID-SHIFT SUMMARY:

After the lock loss that occurred at 02:54UTC caused by earthquake in Vanuatu and about a 1 hr stand down to permit ring down, re-locking is being delayed by locklosses at various stages in the sequence.

EQ bands have come back down below .1um/s. The mean uSeism is right about the 90th percentile. Wind is calm. Re-locking marches on.

ITLE: Dec 18 EVE Shift 00:00-08:00UTC (16:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

OUTGOING OPERATOR: Jim

QUICK SUMMARY: IFO recently re-locked. µSeism @ 90thpercentile. EQ bands nominal. Winds ≤ 10mph.

TITLE:  12/17 Day Shift: 16:00-24:00UTC

STATE of H1: Observing

Support: Typical control room crowd

Quick Summary: Mostly quiet. Evan did some work on DARM, I worked on EX HEPI, lost lock late but got it back in time for the party

Shift Activities:

C. Cahillane

I have updated the LHO uncertainty budget, fixed some bugs, and generated fewer, more relevant plots.

All calibration versions are included in every budget.  I will review the details each version below:
C00: No kappas, no static systematics applied
C01: No kappas, static systematics applied
C02: kappa_tst and kappa_C applied, kappa_pu and cavity pole not applied, static systematics applied
C03: "Perfect", so all kappas and cavity pole applied, static systematics applied
Whenever I do ratio comparisons between model response functions, the "perfect" C03 model is in the denominator.

***** PDFs 1, 2, and 3 *****
These contain the C01, C02, and C03 uncertainty budgets at GPS Time = 1126259461.  (Kappas provided by Darkhan in aLOG 11499.  Thanks Darkhan!)
Plot 1 is the calibration version response function over C03's response function. 
Plot 2 is four plots.  The mag and phase squared uncertainty components plots and the total mag and phase strain uncertainty by itself.
Plots 3-6 are just enlarged versions of Plot 2.

***** PDF 4 and 5 *****
PDF 4 is the Sensing fits and statistics
PDF 5 are the Actuation stages fits and statistics

***** PDF 6 *****
This 4 way subplot of all the calibration versions together on one plot.  I plot the mag and phase response functions and their ratios.

For the C01 calibration version, we have under 7% and 4 degrees of uncertainty (See PDF 1, Plot 2)
For the C02 calibration version, we have under 6% and 3.5 degrees of uncertainty (See PDF 2, Plot 2)