kyle.ryan@LIGO.ORG - posted 10:14, Tuesday 31 January 2017 - last comment - 16:42, Tuesday 31 January 2017(33758)
Reduced CP3's manual mode LLCV to 16% from 17% in response to LN2 delivery today
WP 6431 I updated the PLC code on h0vacex to reflect the change to the Gamma controller for IP12. The HV at end X still needs to be reset and the DAQ needs to be restarted to acquire the new channels.
At approximately 16:05 UTC, the aLOG authentication workflow was modified to include the Shibboleth Discovery Service / federation selection window. This completes a configuration change similar to the one made on lhocds's web server last week. Users will now receive the "where are you from?" page when they select "Login" in the aLOG application.
TITLE: 01/31 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Commissioning
INCOMING OPERATOR: Corey
SHIFT SUMMARY: locked entire time
LOG:
Addition:
The h1boot computer crashed with a divide by zero error, causing several front end computers to complain about "nfs: serverh1boot not responding, still trying". Symptoms in the control room were first noticed that the StripTool plots flatlined. An FSCK is being performed automatically.
The h1boot computer is back, no front end processes seem to have been affected. Since h1boot is the dolphin master for dolphin-interconnected computers, the front end computers all noted the absence of the master with the message "DXH Adapter 0: ma_dxAllocPhysMap - dx_user_connect failed - status=0xffffffff" The CDS overview screen was completely green, but that doesn't really mean much, as the EPICS values were frozen at their last known (good) values. Approximate time of h1boot crash is 6:42 PST according to network monitors.
Alignment drifts for the month of January. Only two tweaks were made this month. Noticeable in the reference cavity reflected spot (bottom left hand quadrant) when the central blob makes a large downwards movement.
With snow removal, falling range, and issues with channels, seems like Maintenance has started a bit early today.
Next time, please selective "PREVENTATIVE MAINTENANCE" for Tuesday Maintenance activity. Thanks!
H1 is running so well it went unnoticed.
I opened a new StripTool, still flatlined.
CDS overview has a heartbeat, and is all green.
TITLE: 01/31 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 67Mpc
OUTGOING OPERATOR: Jim
CURRENT ENVIRONMENT:
Wind: 8mph Gusts, 6mph 5min avg
Primary useism: 0.04 μm/s
Secondary useism: 0.33 μm/s
UPDATE:
TITLE: 01/31 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 67Mpc
INCOMING OPERATOR: Cheryl
SHIFT SUMMARY: Quiet shift, despite an earthquake
LOG:
0:00 4.0 earthquake in Port Hardy
4.0M Port Hardy Canada
Was it reported by Terramon, USGS, SEISMON? Yes, Yes, No
Magnitude (according to Terramon, USGS, SEISMON): 4.4,4.0, NA
Location:
Starting time of event (ie. when BLRMS started to increase on DMT on the wall): ~0:00 UTC
Lock status? Stayed locked even though .03-.1hz blrms got to ~.7 microns
EQ reported by Terramon BEFORE it actually arrived? I noticed asc, imc doing eq band stuff before even USGS listed it. Attached plots show pitch and yaw asc trends from 10-15 (left side of each screen) minutes before and 10minutes during. Look at the ITMY STS blrms in the lower left of each image to get a feel for what the ground was doing.
TITLE: 01/30 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 67Mpc
INCOMING OPERATOR: Jim
SHIFT SUMMARY: One lockloss early in the shift. Observing for the remainder of the shift. Keita updated ISC_LOCK Guardian which will need to be reloaded at the next lockloss.
LOG:
17:48 Bubba to MX
19:05 Fil and Alfredo to MY
20:15 Fil and Alfredo back from MY
22:31 Bubba and Ken to MX
23:58 TCSy chiller low flow alarm (told Nutsinee, she said is was likely the usual glitching)
When making today's ISI model changes, Hugh noticed that an LLO ISI model was using the new style BIO part whereas LHO is using the old style. For documentation purposes and with the aim of standardizing post-O2, here is a list of H1 models and the type of BIO parts they use.
| models which use the old-style part | models which use the new-style parts (input or ouput or both) |
| ISI BS | PSL ISS |
| ISI ETMX | ISI HAM4 |
| ISI ETMY | ISI HAM5 |
| ISI HAM2 | SUS BS |
| ISI HAM3 | SUS ETMX |
| ISI HAM6 | SUS ETMY |
| ISI ITMX | SUS ITMX |
| ISI ITMY | SUS ITMY |
| SUS IM | SUS SRM |
| SUS MC1 | SUS TMSX |
| SUS MC2 | SUS TMSY |
| all IOP models for systems with BIO cards * |
* Note that the IOP models use the old style parts, one per card, for initialization purposes. Models using this part use two parts per physical card, mapping to the lower and upper 32 bits.
Starting CP3 fill. LLCV enabled. LLCV set to manual control. LLCV set to 50% open. Fill completed in 46 seconds. TC B did not register fill. LLCV set back to 17.0% open. Starting CP4 fill. LLCV enabled. LLCV set to manual control. LLCV set to 70% open. Fill completed in 129 seconds. LLCV set back to 37.0% open.
I lowered it even more to 14% at 21:40 UTC.
Temps still low and exhaust pressure still high so I lowered incrementally all the way down to 1%. Pressure fell to 0 psi but exhaust temps are still read low (-33 C).
The Dewar was filled to a higher level than normal (86% full).
Raising LLCV to 12% and will go out to check actuator to make sure it's not frozen (we got snow today).