TITLE: 04/13 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Commissioning
OUTGOING OPERATOR: Jeff
CURRENT ENVIRONMENT:
    Wind: 26mph Gusts, 21mph 5min avg
    Primary useism: 0.07 μm/s
    Secondary useism: 0.14 μm/s
QUICK SUMMARY:  Robert, Jenne, et al. doing some commissioning work in LVEA HAM 1 enclosure.  LLO is finally back up and commissioners have been notified to wrap up their work.  No issues regarding the IFO were handed off.

At the request of Rick and Sudarshan, the HIGH_FREQ_LINES Guardian node will start at 5751.3Hz and then decrease by 500hz every 24 hours after a lock loss. Currently the end is set to be at 1000hz, but it sounds like it will most likely be stopped manually before then.

   Committed the following files to the SVN repository 

/opt/rtcds/userapps/trunk/sus/h1/burtfiles/h1susprocpi_safe.snap
/opt/rtcds/userapps/trunk/psl/h1/burtfiles/fss/h1pslfss_safe.snap
/opt/rtcds/userapps/trunk/sus/h1/burtfiles/h1susitmy_observe.snap
/opt/rtcds/userapps/trunk/sus/h1/burtfiles/h1susitmx_observe.snap
/opt/rtcds/userapps/trunk/sus/h1/burtfiles/h1susprocpi_safe.snap
/opt/rtcds/userapps/trunk/psl/h1/burtfiles/fss/h1pslfss_safe.snap
/opt/rtcds/userapps/trunk/cal/h1/burtfiles/h1calcs_OBSERVE.snap

The attached image shows the condensate that has accumulated in our VBOD Main Turbo's exhaust after several years and many bake loads.  This is a maglev turbo that has only been backed by scroll pumps and that has only pumped Class-A prepped parts.

   Dropping the intent bit to commissioning so Robert can work on the list below. I just spoke with LLO and they are still working their issues. Will keep in contact with LLO Ops on status. 

Commissioning Activities:

1). Shake input arm below 8 Hz
2). Bang on HAM6 to make sure dust doesn’t produce blip glitches
3). Look into mitigating scattering on ISCT1 so we can use POP AIR

Optical lever trends: ITMY SUM has dropped from around 40K to less than 20K.

   Commissioning and relocking this morning, while LLO is down. Environmental has been troubling, with high and gusty winds and a couple of small earthquakes. The primary microseism is elevated with the wind. 

   Ran A2L repair script due to YAW coherence up to 0.9.  

   After clearing SDF Diffs for PSL-FSS_COMMON_GAIN and IMC-REFL_SERVO_IN1GAIN went back to Observing while commissioners are resetting for the afternoon.  

Everything looks fine here.

   Per Keita:

  Spoke with Brian O’Rielly. LLO will be down for an unknown period. LLO ops will contact LHO ops when they are about an hour from relocking. Robert will be doing commissioning work until 13:00.
  The intent bit has been changed to Commissioning.   

Hard to tell glitches from optical manipulation to lockloss spikes with these plots. HAM2 (not used) plots are the only ones that seem off spec. Currently OpLev damping is turned off IFO wide except for BS damping only during acquisition.

All looks well. Powers tracking humidity. Odd, little (very marginal)bump in chiller plots. I don't think this is any cause for concern.

Over the past few days and for the foreseeable future I'm running a python script which looks for ADC,TIM,IPC glitches on the end station computers. It scans roughly once a second (not synced to GPS but rather runs a loop and then waits one second). For all models running on the machines h1suse[x,y], h1seie[x,y] and h1isce[x,y] it reports any STATE_WORD which have non-zero values after the upper bits have been masked. For any model with an IPC error, it scans each IPC receiver channel and reports any non-zero error counts (plus IPC type and name of sender). Any latched errors are subsequently cleared by the once-a-minute issuing of a DIAG_RESET by a cronjob (actually happens at about 3 seconds in the minute).

Once I've accumulated some statistics, I'll post a report.

TITLE: 04/13 Owl Shift: 07:00-15:00 UTC (00:00-08:00 PST), all times posted in UTC

STATE of H1: Observing at 59Mpc

INCOMING OPERATOR: Jeff

SHIFT SUMMARY: Been locked for 17 hours. Wind seems to be picking up. 

LOG:

Beam position based on exciting the pitch(yaw) DOF and then changing P2L(Y2L) gain to minimize the peak.  Both measurements use a sign convention that is consistent with UR coil values.  The Dec 2013 alpha numbers are as posted, however the beam distance numbers have been recalculated.  In Dec 2013 the conversion from alpha to mm was 37.5mm/alpha, and the current conversion is 42.2mm/alpha.

The animation that's attached shows the ideal IMC alignment in a dashed magenta line, the Dec 2013 alignment in red, and the Mar 2017 alignment in blue.  Green markers show the optics, squares are MC1, triangles are MC2, and circles are MC3.

The lines and markers accurately represent the optics and the beam changes, but are not to scale.  I altered some numbers to make the changes visible in this animation.