Winds were down when I left my house, but soon as I get here they seem to be up again to the high 20's, low 30's. Microseism has grown to 0.7um/s. Such is life. I will try to lock since I'm here now.
ITMY ST1 ACT and ST2 Coil Driver Chassis BIO were tripped when I arrived.
Title: 11/1 OWL Shift: 7:00-15:00UTC (00:00-8:00PDT), all times posted in UTC
State of H1: Down due to high winds and microseism
Outgoing Operator: Travis
Quick Summary: As it says in Travis's log, I will monitor things from home periodically and come in if/when it looks more reasonable.
Title: 10/31 Eve Shift 23:00-7:00 UTC (16:00-24:00 PST). All times in UTC.
State of H1: Unlocked due to wind
Shift Summary: Wind calmed briefly, and after Hugh's TFs finished, I attempted locking. Got as far as locking DRMI once before winds kicked back up to 40-60mph. Called Mike to discuss whether TJ should bother to come in for his shift. He advised to tell TJ to monitor the wind remotely and come in once they have began to calm. Microseism is also ~0.6 um/s.
Incoming operator: TJ (monitoring environmental conditions from home)
Activity log:
2:49 In prep for locking attempt, adjusted Ref. signal to -1.94V to bring diffracted power to ~8.5%
3:01 HAM 1 HEPI restored after Hugh's TFs finished
3:12 began initial alignment
4:25 gave up on locking after struggling to get to DRMI and wind continue to increase
WInds has calmed down to reasonable levels. However, microseism is high at ~0.7 um/s. I'm trying to lock regardless.
Ok, maybe that was a little premature. I'm gonna go ahead an give up again now that winds are back in the 30s with gusts over 40. Believe it or not, I managed to get DRMI locked with 30 mph wind at the CS, for about 30 seconds.
While staring in disbelief at the wind graph, I happened to notice that the H1CALCS EXC block is now green. It is usually red, indicating that calibration lines are running. Did someone turn these off, or did something else happen? #KisselAtLSD
Activity Log: All Times in UTC (PT) 15:00 (08:00) Take over from TJ 15:15 (08:15) Marissa – On site 15:39 (08:39) Reset ITM-Y ISI ST2 watchdog trip 15:49 (08:49) Cleared HAM3 saturations 15:55 (08:55) PSL ISS diffracted power low (6.8% -1.90v) Adjusted to -1.96v for an 8.1% diffracted power 16:05 (09:05) Reset ITM-Y ISI ST1 watchdog trip; Called Hugh R. 16:10 (09:10) Put IFO into DOWN state – Only to DRMI-1F a couple of times. Most breaks come during ALS or FIND_IR. Wind and Seismic still high. 19:50 (12:50) Tried relocking as conditions appeared to have improved 20:10 (13:10) Put IFO back into DOWN state. Wind back up – Gusts to over 50 at End-X. 20:15 (13:15) Hugh – On site 20:40 (13:40) Put HAM1 into READY state so Hugh could run TFs on HAM1 21:09 (14:09) Hugh – Going into CER to check cables on ITM-Y coil driver 21:19 (14:19) Hugh – Out of the CER – No apparent problem found 21:55 (14:55) Hugh – Leaving site 23:00 (16:00) Turn Over to Travis End of Shift Summary: Title: 10/31/2015, Day Shift 15:00 – 23:00 (08:00 – 16:00) All times in UTC (PT) Support: Hugh Incoming Operator: Travis Shift Summary: Had two ITM-Y ISI watchdog trips this morning. The first tripped Stage 1. The second tripped Stage 2. In both cases the “Coil Driver Chassis Bio” had tripped. Was able to reset both. Called Hugh to discuss; reference aLOG #22947 & #22977. Tried relocking as the winds had dropped to below mid-teens. No luck. Wind picked back up, with constant 30s down X-Arm and several gusts of over 50 at End-X. Only made it past LOCKING_ALS one time. Put IFO back into DOWN state until conditions improve. Put HAM1 HEPI into Ready state while Hugh running TFs on HAM1. Wind remained high during end of shift, with several gusts over 50mph. Did not attempt to relock.
Final 2 bands for the full suite, should be finished around 6pm. Just put the Guardian back to Robust Isolated.
With Richard's sanction, I wiggled the binary cables from the ITMY coil driver but no glitches resulted...
These are all within a four hour period with the last one ~1855utc.
There are no others since I reported on them yesterday. Actually, as I dig deeper and look at full data (as the minute trend bands looked too wide,) I see that there are 8 drops of the V3 status bit. Most lasting several seconds. I'm tempted to go wiggle a few cables since the IFO is not locking with the high winds.
Oh yes, Jeffery reminded me that even the rogue excitation alarm triggered on more than half of these. That occurs when we still have DAC drives when the WD is tripped or something like that. I'm not worried about that aspect of this but it just indicates the irritation of this problem.
Wind appeared to be dropping (down into the mid-teens) and seismic activity was also coming down. At 19:50 (12:50) tried relocking. The wind came back up at almost the same time. Only made it to LOCK_ALS one time. At 20:10 (13:10) put the IFO back into a down state until conditions improve. 20:30 (13:30) recording constant winds into the 30s & 40s with gusts at End-X well over 50mph. (Just had all 5 weather stations reporting sustained over 30mph).
Environmental conditions remain difficult, but may be improving. Wind has dropped to be consistently below 20mph. Seismic activity is also dropping a bit, but is still high. Having trouble with the ITM-Y "Coil Driver Chassis Bio" and ST1 and ST2 watchdog trips, (see #22947 姁). Spoke with Hugh earlier in the shift and have a call into him as these event are becoming more frequent. If conditions continue to improve and ITM-Y gets sorted out, will attempt to relock the IFO.
After 1.5 hours of attempting to relock and only making it to DRMI-1F twice before lock loss. Most lock breaks occurred during ALS or FIND_IR. Environmental conditions are not favorable for relocking. Will try to relock when conditions improve.
Carlos, Dave:
The CDS /ligo file system got filled to 100% yesterday. We temporarily made space by removing a large backup and are working on extending/replacing this file system, in the mean time if you can compress or remove any large files (they are all on tape backup) that would be appreciated.
Title: 10/31/2015, Day Shift 15:00 – 23:00 (08:00 – 16:00) All times in UTC (PT) State of H1: 15:00 (08:00) IFO is down due to environmental conditions. Outgoing Operator: TJ Quick Summary: Wind is a fresh to strong breeze (17-27) with gusts in the mid-30s. Microseism is elevated due to winds and coastal storm conditions. Have been unsuccessful at relocking. Will continue to attempt to relock. If not successful will put the IFO into a down state until conditions improve.
Title: 10/31 OWL Shift: 7:00-15:00UTC (00:00-8:00PDT), all times posted in UTC
State of H1: Unlocked
Shift Summary: Locked for about 6 hours of my shift, then lost it at 12:41. I brought it all the way up only to lose it while running the A2L script. Winds are picking up to the low 30's now, and the forcast calls for gust up to 50mph today (normally forcasted much lower than actual speeds). useism is at 0.4um/s.
Side note: ran into a few errors in different places reporting "disk space full." Patrick sent Dave an email about this last night, but this is preventing me from posting screenshots, so sorry for the lack of lockloss info posted.
Incoming Operator: Jeff B
Activity Log:
Since I can't post screenshots, I will write it out. Like Sheila said in alog22982 AS90 was on the low side, about 250 counts, POP18 was around 130, and POP90 at 85.
Lost lost at Nominal Low Noise while I was running the A2L script( 13:54 UTC).
Let's try this again.
Lockloss at 12:41 UTC
Wind ~20mph, useism 0.4um/s. I will post plots momentarily.
Observing @ 72Mpc
Environment:
For the Operator Thursday Maintenance item that was tmissed this week, I topped off the chiller with 150mL.
Title: 10/30 Eve Shift 23:00-7:00 UTC (16:00-24:00 PST). All times in UTC.
State of H1: Observing
Shift Summary: After the wind calmed to a reasonable level a few hours into my shift, I began a slow progression of locking. I got to do a few things that were new to me, such as being involved in restarting a (really) frozen guardian node, and engaging the ISS 2nd loop manually. Locking in Observing after engaging 45 mHz blends. Microseism coming up slowly. Winds calm, at last.
Incoming operator: TJ
Activity log:
0:07 Jeff K starting charge measurements
1:28 Jeff K done
1:52 HAM 1 HEPI restored after Hugh's measurements finished
1:53 Start locking
2:30 Adjusted ISS ref. signal after diffracted power low notification
3:01 Jeff K attempts restart of PRM guardian node
4:45 Start initial alignment after many unsuccessful locking attempts
5:15 PRMI to DRMI transition unsuccessful
5:51 GRB alert
6:00 45 mHz blends turned on
6:26 manually engaged ISS 2nd loop after getting stuck
6:34 Observing