When you compare "H1 SNSW EFFECTIVE RANGE (MPC) (TSeries)" data in DMT SenseMonitor_CAL_H1 with its copy in EPICS (H1:CDS-SENSEMON_CAL_SNSW_EFFECTIVE_RANGE_MPC), you will find that the EPICS data is "delayed" from the DMT data by about 109 seconds (109.375 sec in this example, I don't know if it varies with time significantly).

In the attached, vertical lines are minute markers where GPS second is divisible by 60. Bottom is the DMT trend, top is its EPICS copy. In the second attachment you see that this results in the minute trend of this EPICS range data becoming a mixture of DMT trend from 1 minute and 2 minutes ago.

This is harmless most of the time, but if you want to see if e.g. a particular glitch caused the inspiral range to drop, you need to do either a mental math or a real math.

(Out of this 109 seconds, 60 should come from the fact that DMT takes 60 seconds of data to calculate one data point and puts the start time of this 1 min window as the time stamp. Note that this start time is always at the minute boundary where GPS second is divisible by 60. Remaining 49 seconds should be the sum of various latencies on DMT end as well as on the copying mechanism.)

20:28 UTC Back to observing mode.

C. Cahillane

I have generated the latest uncertainty results for LHO.  I have characterized the uncertainty in the actuation function by quadratically summing the statistical and systematic errors.  There are more elegant ways to combine systematics and statistical errors, but for now we will see if this is sufficient.
Plot 1 and 2 are the Mag and Phase components of σ_h^2, and Plots 3 and 4 are the Mag and Phase of σ_h itself.
We have greater than 10% and 10 degree uncertainty just below 100 Hz with our current analysis, but this is just an update with inflated flat uncertainties in the kappas and f_c.

Note that the linear sum of our PUM and UIM stage uncertainties into our A_pu uncertainty is not correct, but only an estimate used for calculations in the meantime.  I have performed the correct calculations in Mathematica and will implement them given time.
The following are the sigma values I have used:

σ_|A_tst| = A_coeff_sigma_mag_A_tst .* abs(A_tst);  
σ_|A_pu| = A_coeff_sigma_mag_A_pum .* abs(A_pum) + A_coeff_sigma_mag_A_uim .* abs(A_uim);
σ_|C_r| = 1.0 .* abs(C_r);
σ_|kappa_tst| =  5;
σ_|kappa_pu| = 5;
σ_φ_A_tst = A_coeff_sigma_phase_A_tst;
σ_φ_A_pu = A_coeff_sigma_phase_A_pum + A_coeff_sigma_phase_A_uim;
σ_φ_C_r = 5;
σ_φ_kappa_tst = 5;
σ_φ_kappa_pu = 5;
σ_kappa_C = 5;
σ_f_c = 23.4731;

I have inflated the errors in the kappas and f_c to 5% and 5 degrees based on our systematics seen from the calibration group calculations.  We hope that we can deflate these errors when the calibration group discovers the systematics responsible for our kappa deviations from 1.
The next step is to propagate uncertainty for the sensing function, after which I will have finished analysing the uncertainty of measurements at LHO.  Then I may move onto LLO.

Steps:
1) Get sensing function uncertainties at LHO
2) Implement correct A_pu uncertainty propagation
3) Check sanity
4) Move on to LLO uncertainty measurements
(?) Correct for kappas and f_c uncertainties as better calculations are made available.  For now, apply flat 5% and 5 degrees.

15:55 David N. through gate

Had trouble locking on DRMI. Tried locking on just PRMI. Had a few locks on PRMI, but would not stay. Eventually gave up and started an initial alignment at 17:47 UTC. Finished initial alignment with help from Sheila at 18:55 UTC. Had trouble with ALS during initial alignment. Sheila and Jenne now suspect we may be losing lock engaging the gain for the DSOFT loop. They are starting a test now.

TITLE:  Sep 16 OWL Shift 07:00-15:00UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Was observing at ~70 Mpc for 4 hours after the 6.3M earthquake in Indonesia. We lost lock again due to a 6.0 earthquake in Papua New Guinea. Mother nature wasn't happy.

SUPPORT: Rick S., Darkhan T., Corey G.

SHIFT SUMMARY: After the 6.3M earthquake in Indonesia, things had been quiet until another 6.0M earthquake in Papua New Guinea. There were several small earthquakes (less than 3 mag) in California, Oregon, and Alaska but the interferometer hardly noticed them. Wind speed >=10 mph. 4 ETMY glitches that were loud enough to be noticable on range plot. Overall trend of the microseism is slowly coming down. LLO has been down since earthquake. Danny said there were a problem with ALS PDH servo board.

INCOMING OPERATOR: Patrick

Activity log:

07:00 Took over from Ed. The ifo was locking and observing. No more nasty 2Hz comb (yay!).

08:07 Rick called about LVEA light. I switched to commissioning to go into the LVEA to turn off the light.

08:12 Back to Observing. The light in the PSL area was still on. Called Rick again. We thought it was the light from the change room.

08:30 After LLO went down I switched the intent bit to commissioning again and went to find PSL change room light switch. It wasn't the change room light. It was the crain.

           Came back few minutes after and found out we had a lock loss at 08:01 Due to an earthquake in Indonesia.

09:02 Began lock acquisition. The earthquake band amplitude was still 10^-1 um/s but ALS-TRX and TRY didn't glitch much so I gave it a try.

09:15 Craig and Darkhan left the control room.

09:18 Corey called about the crain light. I went out to LVEA to take care of it. I switched off the door access reader on my way out.

09:23 Back in the control room. I realized that the operating mode was still commissioning. It should have been in Environmental for ~30 minutes. Since I have started the lock acquisition I switched the operating mode to LOCK ACQUISITION.

09:47 Back to Observing. The ifo have reached NOMINAL_LOW_NOISE few minutes ago but I thought the 3001 Hz Pcal line wasn't there. I called Darkhan and apparently the spectrum needed a narrower BW for the line to show (I saw it at 0.01Hz BW).

12:00 Karen and Christina on site

13:00 Richard on site.

14:28 Lockloss. 6.0M earthquake in Papua New Guinea.

15:00 Handing off to Patrick

Note:

- EX dust monitor looks bogus. The alarm that went off probably wasn't real neither.

STATE Of H1: Earthquake
OUTGOING OPERATOR: Nutsinee
QUICK SUMMARY: Unlocked, possibly due to earthquake. Winds less than 10 mph. Peak to around 1 um/s in 0.03 - 0.1 Hz seismic. 0.1 - 0.3 Hz seismic around 10^-1 um/s. Lights off in LVEA. Lights appear off in PSL enclosure. Lights appear off at mid and end stations.

ER8 Day 30. h1ecaty1 all three PLCs restarted due to Beckhoff chassis work.

Tue 15 Sep 2015 11:34:25 h1ecaty1plc[1,2,3]

ER8 Day 29. No restarts reported.

ER8 Day 28. No restarts reported

Due to a 6.0M earthquake in Papua New Guinea. Requested ISC_LOCK to DOWN. Mother nature hasn't been very happy today....

Terramon showed this earthquake 4 minutes after the lockloss.

Due to a 6.3M earthquake in Indonesia. I didn't take anything down and hoped that we could survive. Nothing has tripped. I've requested ISC_LOCK to DOWN waiting for the earthquake to pass.

Earlier I set the bit to commissioning briefly and went in to turn the light off in the LVEA as Rick suggested. He thought it'd be better if the LVEA was to be in the same condition as couple nights before and I agreed. However I noticed the light was on near the PSL area and I couldn't find the light switch for it. I came back, set the intent bit to Observing and called Rick. He suggested the light switch would be in the change room by the PSL. Shortly after the earthquake took down LLO I set the intent bit to commissioning and went in again and realized that the light didn't come from the change room but came from the ceiling (part of the crain?). I didn't know where to turn it off so I left it as that. I've attached a photo. If you know where/how to kill the light please call and I will take care of it.

TITLE: Sep 16 Owl Shift 07:00-15:00UTC (00:00-08:00 PDT), all times posted in UTC

STATE Of H1: Observing at ~70 Mpc for the past 6.5 hours

OUTGOING OPERATOR: Ed M.

QUICK SUMMARY: 2Hz comb disappeared. Microseismic seems to have flatten between 0.1 and 0.2 um/s. Wind speed <=10 mph. Craig and Darkhan doing calibration work. LLO is also observing. LVEA light is on.

TITLE:  Sep 15 EVE Shift 23:00-07:00UTC (16:00-00:00 PDT), all times posted in UTC

STATE Of H1: Observing

LOCK DURATION: 5hr48min

SUPPORT: Sheila gave a tip regarding if the 2Hz comb should re-appear to check the ALS Phase discriminator RF Mon and LO Mon to see if the counts have stopped moving. More about this can be found in her aLog. https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=21564

INCOMING OPERATOR: Nutsinee

Activity log:

23:31 Team out to swap the EndY EtherCat chassis 2

23:43 Sheila called from EY to confirm IFO state in order to begin work with EtherCat chassis.

00:17  Sheila called to say that they think they won.

00:18 Begin Locking

00:25 Team out of EY and headed back to control room.

01:00 IFO set to UNDISTURBED/Observing

01:17  I noticed the PCal lines missing

01:18 IFO set to UNDISTURBED/Observing

01:48 ETMY Saturation

02:19 ETMY Saturation

02:43 ETMY Saturation

02:51 ETMY Saturation

03:09 ETMY Saturation

05:33  poking around in GraceDB I noticed that there was a Gamma Ray Burst Alarm while the IFO was down.

End-of-Shift Summary: IFO remains locked and Observing at ~70Mpc. Seismic and wind activity remain quiet. MIcroseism had been steadily increasing over the last 22 hours but seems to have leveled off at around 2e-1. Occassional ETMY glitching (will be detailed in the end of shift activity log.

Mid-Shift Summary:

• IFO remains locked and Observing at ~70Mpc for ~ 2.75hrs. Earlier the Intent bit was turned off momentarily right after it was set and then turned back on because I noticed that one of the CAL lines wasn’t on. It was the EY PCal lines. The missing peak was a little hard to see due to the overlaying of plots. Seismic and wind activity remain quiet. MIcroseism has been steadily increasing over the last 22 hours. Occassional ETMY glitching (will be detailed in the end of shift activity log.

Hugh, Sheila, Jenne, filling in for Patrick

We are filling in for Patrick at the moment because he is helping Fil to use the beckhoff test stand in the H2 building.  We are trying to lock now after Patrick and Jenne did a full initial alignment.  

This morning, Fil, Vern, Elli, Nutsinee and I swapped out the End Station 2 Beckhoff Chassis, because all the modules on the right rail were in the state INIT NO_COMM, and we could not change their state by requesting different states (including safe) or clearing errors.  We swapped the chassis with a spare.  Hugh and Patrick burt restored plc1,2,3 to 10 pm last night.  

When we first arrived we saw that the high voltage power supplies for the ESD were off, Fil turned them on and restored the settings.  This may be because the vacuum gauges which are controlled by beckhoff would have tripped them off. The ESD driver was off, but we did not reset it believing that we could reset it remotely. Later Betsy reset it by driving back to EY after she could not reset it in the normal way remotely.

Elli quickly noticed that something was amiss with the ring heaters at end Y, which are controlled by the same beckhoff chassis.  We checked that the settings were all the same, it seems like there is some difference between the 2 chassis.  

Fil, with help from several people, has spent most of the afternoon with the chassis we removed.  We had trouble getting a test set up going that we could use to diagnose the problem, so Hugh, Jenne, and I are relieving Patrick for a few hours so he and Fil can work together on the removed chassis.  They think that they have found a problem with one of the modules, and are currently replacing that module.  

We are about to reach low noise (with the spare chassis, and incorrect power on the ring heaters).  We hope to see that the comb is gone, and if we see that we may break the lock to revert to the old chassis if possible.  

Patrick's notes about his shift:

10 am PDT safety tour changed from X end to Y end(this may have broken our noisy lock this morning)

18:11 UTC placed beckhoff chassis at End Y

18:20 UTC Rick retrieves (?) PCAL out of optics lab

18:30 UTC Dick in optics lab out at 12:41 PDT

18:31 UTC Fil restarts beckhoff computer (Guardian to down)

a little while later h1ecaty1 burt restores to 22:10 Sep 14

18:53 UTC Jeff B, Jason retrieve part from optics lab (?)

12:38 PDT UPS truck at LSB

20:37 start of initial alignment finished at 21:22

20:54 Sheila to H2 electronics back 20:56, Fil is still there

20:58 Betsy to EY to restart ESD back 14:31

Things were quiet. Then Stefan arrived, and I realized I had set the observatory mode but forgot the Intent Bit, and which spiraled into a bunch SDF differences. The LSC guardian showed a difference on a t-ramp (annoying that this kind of difference would keep us from going into Observe) and ASC had two diffs that I guess Evan logged about last night but didn't accept. Then Stefan went and set a bunch of ODC masks (this also would have kept us from going into observe, so also annoying) as well as tuning the whitening the IM4 QPD (which was saturating, Stefan assures me is out of loop so shouldn't affect anything). Guardian recovered from the earlier lock loss in 20 minutes (not annoying!) back to 70 mpc and it has been otherwise quiet.