model restarts logged for Tue 18/Apr/2017
2017_04_18 10:17 h1calcs
2017_04_18 10:23 h1broadcast0
2017_04_18 10:23 h1dc0
2017_04_18 10:23 h1fw0
2017_04_18 10:23 h1fw1
2017_04_18 10:23 h1fw2
2017_04_18 10:23 h1nds0
2017_04_18 10:23 h1nds1
2017_04_18 10:23 h1tw1

Maintenance day. h1calcs model change, new H1EDCU_RACCESS.ini, DAQ restart to support these.

model restarts logged for Mon 17/Apr/2017 - Wed 12/Apr/2017 No restarts reported

WP6572 h1calcs model change

Jeff K, Dave:

new code was installed for h1calcs.

h1hwsex Recovery

Nutsinee, Dave:

The HWS code was recovered on h1hwsex after the frame grabber card was returned last week.

DMT Calibration code reversion

Greg:

The new calibration code (which was installed on 4/11) was reverted back to the old version, but this failed due to channel list changes. The new code was left in place.

Remote access channel lists updated

Jonathan, Dave:

The RACCESS channels lists in both the autoBurt.req and H1EDCU_RACCESS.ini files were updated.

DAQ restart

Dave:

DAQ was restarted to cover h1calcs and H1EDCU_RACCESS config changes

HWS code was writing HWSY data overnight. Stopped at 16:18:15 UTC

Swapped camera fiber cable 16:19 UTC

Code restarted 16:20 UTC, now writing HWSX data.

See alog35628 for details

16:00-16:07 UTC

entered LVEA to de-energize three turbo stations (levitated bearing in turbo dropped)

TITLE: 04/19 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 67Mpc
INCOMING OPERATOR: Nutsinee
SHIFT SUMMARY:

Other than a lockloss, mostly uneventful night mostly in OBSERVING.
LOG:

• 7:39-8:21 Lockloss
• 13:27-14:27 GRB Stand Down Time (confirmed notification with Jeremy at LLO)

In order to see if a couple of optics for HWSY could be identified, the illuminator cover on the
A1F4 viewport of HAM4 was removed.

Conclusion The optic in the HWSY DCBS1 lens mount is most likely to be a dichroic beamsplitter
rather than a lens.

  The orientation of the HWSY VacLens mount is such that the retaining ring is facing the HWS table.
Clearly seen are the two holes of the retaining ring as Betsy illuminated the chamber from A1F4.  The
holes are not clearly visible when one looks from the A1F4 flange side, which is consistent with them
being partly blocked by the lens mount.

  The 2" Siskiyou lens mount is 0.50" thick but has a 0.41" deep recess to accommodate an optic.  The
retaining ring for the mount is 0.13" thick.  If the optic in the mount is the dichroic beamsplitter
(D1200214) which is 0.375" thick.  Since the stack up
of the retaining ring and a 3/8" thick optic is thicker than the mount, the mount is a custom
modification to the standard part.  More importantly since the retaining ring appears to be almost
flush with the surface of the lens mount, the optic held is more likely to be the dichroic beamsplitter
rather than a lens.  The data sheet for a PLCX-50.8-360.6 lens says it is 6.4 mm thick - a concave lens
would be similar.  If the optic in the mount were a lens, the retaining ring would sit deeper in the mount.









Betsy / Peter

Earlier this evening when I was checking doors/lights, I noticed that the PSL Crystal Chiller was below the mid-level.  I topped it off with 275mL.

• 7:39 Lockloss:  No obvious reason
  • ALSx gave a little grief ranging from VCO/PDH messages flashing to breaking lock when WFS engaged.  Taking Guardian to DOWN might have helped to get hobble through.  Also notice lots of motion for ALSx after locklosses.
  • Had about (3) locklosses in FIND_IR after it had "found IR".
  • BS was way off, so had to CHECK MICH FRINGES & tweak at PRMI.
• 8:21 OBSERVING, still see light on ALSx camera as Patrick noted.

TITLE: 04/19 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 64Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    Wind: 8mph Gusts, 6mph 5min avg
    Primary useism: 0.01 μm/s
    Secondary useism: 0.14 μm/s
QUICK SUMMARY:

I'm in for Emergency Coverage (Sick Operator) For Owl Shift Tonight.  Patrick handing over a nice H1 amongst a seismically quiet night.

TITLE: 04/19 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 65Mpc
INCOMING OPERATOR: Ed (Corey covering)
SHIFT SUMMARY: Some issues staying locked before DRMI, not certain of cause. I think the lock loss shortly after the first transition to observing occurred after the small spike in 0.03 - 0.1 Hz CS seismic BLRMS was already coming down. No issues since last lock ~6 hours ago.
LOG:

23:18 UTC Clicked run on RF noise DTT
23:41 UTC Stopped at DC_READOUT_TRANSITION. Sheila commissioning.
23:45 UTC Restarted DMT range integrand
23:59 UTC Sheila done. Continuing to NLN.
00:11 UTC Observing. Small spike in CS 0.03 - 0.1 Hz seismic BLRMS < .1 um/s. High bounce/roll mode (~ 9 Hz)
00:13 UTC Lock loss.
01:01 UTC Observing. High bounce/roll mode (~9 Hz)
03:30 UTC LLO down. Out of observing to run a2l.
03:45 UTC Back to observing.

If I recall correctly this image (attached) is normally dark in NLN?

Back in observing. Greg reported the calibration code is working. Locked for ~2 hours. Wind is coming back down.

The H1 detchar summary page for 4/19/2017 shows the DMT GDS hoft calibration code has marked the calibration and hoft as OK when we went back into observing mode:

https://ldas-jobs.ligo-wa.caltech.edu/~detchar/summary/day/20170419/plots/H1-MULTI_D80927_SEGMENTS-1176595218-86400.png

This shows the calibration code (calibration 1.1.5) is behaving correctly for now.

(The bug reported here, https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=35569, should only occur if channels needed by the calibration reports bad dataValid flags or the DAC/framebroadcaster gets restarted.)

Peter, Nutsinee

HWSX

Today we started off by making sure that the green beam is aligned to the irises. We quickly found that the outgoing path of the sled beam and the green beam didn't quite overlap. We adjusted HWSX BS and HWSX SOURCE M2 optics to realign sled beam to the irises. After we ensure that the sled and green overlap we centered the HWS beam onto the HWS camera and adjusted the pick off BS to align the green to the BASLER camera (Richard insisted it's not a GigE so I'm going to stop calling it that). We also mount the camera to the height-adjustable mount. We also put the IR bandpass filter onto the camera and verified that the camera can actually see the 790nm sled by putting it right in front of the sled launcher. Right now we can't see the sled on the BASLER camera and we couldn't change the exposure rate (as of now anyway). We need something more sensitive (a flipper mirror alone wouldn't work either since the camera wasn't able to see any light coming off the final mirror before the HWS camera). 

HWSY

We wanted to see some HWSY data so we went in to make sure that Y sled was not clipped or whatsoever. The beam looked as bad as usual. We made some minor tweak to the green beam and the sled so that their path overlap. We also identified the top beam to be a beam reflected off the compensation plate (to figure this out we yawed the CP then put it back in place). Since we have only one spare sled left, we decided not to replace it until after the vent work.

HWS Code

Starting from 22:00:21 UTC today (April 18) the code is writing data from HWSY camera. Will revert this configuration as soon as I get some power up/down time.

TITLE: 04/18 Day Shift: 15:00-23:00 UTC (08:00-16:00 PST), all times posted in UTC

STATE of H1: Lock Acquisition

INCOMING OPERATOR: Patrick

SHIFT SUMMARY: Not much activities after I took over from Cheryl. Locked at NLN briefly but lost it. Possibly due to wind (now passed 30 mph).

LOG:

19:30 Robert & Evan to End Stations -- turn off PCal camera.

20:20 Fil & Marc out (cable pulling work)

20:36 Robert & Evan back

20:53 Robert to LVEA -- align MC3 camera

20:54 Dave back

21:01 Jenne et al. to ISCT1 to place beam dump.

22:14 Robert done sweeping the LVEA

I started to repeat the measurement described in llo alog 28797 while we were waiting for LLO to come back up around 20:05 UTC. Since LLO is back, I have stopped and put things back to normal, and Cheryl is running A2L before we go back to observing. (This was about 45 minutes of commisioning). 

I got as far as tuning an excitation and finding that an offset of around 0.3 in POSY may be about right, but that we need to wait a long time for the OMC ASC loops and the slow kappa C calculation to settle when making these measurements.  The template with the excitation is saved at sheila.dwyer/OMC/OMC_alignment_jitter_check.xml  We will continue this Wednesday.