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ID Date Author Type Categorydown Subject
  754   Tue Jul 29 11:50:01 2008 JenneUpdateEnvironment5.6 Earthquake
Earthquake Details
Magnitude 5.6
Date-Time

* Tuesday, July 29, 2008 at 18:42:15 UTC
* Tuesday, July 29, 2008 at 11:42:15 AM at epicenter

Location 33.959N, 117.752W
Depth 12.3 km (7.6 miles)
Region GREATER LOS ANGELES AREA, CALIFORNIA
Distances

* 3 km (2 miles) SW (235) from Chino Hills, CA
* 8 km (5 miles) SE (127) from Diamond Bar, CA
* 9 km (5 miles) NNE (23) from Yorba Linda, CA
* 11 km (7 miles) S (178) from Pomona, CA
* 47 km (29 miles) ESE (103) from Los Angeles Civic Center, CA

Location Uncertainty horizontal +/- 0.3 km (0.2 miles); depth +/- 1.3 km (0.8 miles)
Parameters Nph=144, Dmin=8 km, Rmss=0.42 sec, Gp= 18,
M-type=local magnitude (ML), Version=1
Source

* California Integrated Seismic Net:
* USGS Caltech CGS UCB UCSD UNR

Event ID ci14383980

All the watchdogs tripped. I'll put them back after lunch, after the optics have had time to settle down.
  1025   Fri Oct 3 19:38:02 2008 robMetaphysicsEnvironmentThe Gatekeeper

Found this lady outside the door of the 40m lab a few nights ago.
Attachment 1: DSC_0409.JPG
DSC_0409.JPG
  1026   Sat Oct 4 07:23:42 2008 KojiMetaphysicsEnvironmentThe Gatekeeper
Hi, this is Koji from Japan.

I am afraid that this is a poisonous spider, Latrodectus hasseltii.
In Japanese word "Seaka-goke-gumo" (red-backed widow spider)

I am not an expert of insects, but this type of spider is getting famous in Japan as they were accidentally imported from South-West asia and Austraria to Japan in recent years, and they settled in certain city areas.

It is said that its neurotoxic venom causes unpleasant results such as shock, pain, and inflammation, even it is not too strong to kill human.

Be careful.


Quote:

Found this lady outside the door of the 40m lab a few nights ago.
  1161   Mon Nov 24 19:15:16 2008 rana, alberto, johnConfigurationEnvironmenttemperature
The PSL Room Temperature was alarming because it had gone above 23 C. This set off an unfortunate chain of events:

We found that the PSL HEPA was set low (20%). This is a fine setting for when no one is working in there but it
does raise the temperature since there are heat sources inside the blue box.

We tried to change the office area temperature to compensate and also the westmost sensor inside the lab area by 2 deg F.

The office area one was problematic - there was so much dust in it that the gas valve nipple was clogged. So we've
now blown it all clean with a compressed air can. We're now tuning the calibration screw to make our new
digital sensor agree with the setpoint on the controller.

Expect wild temperature swings of the office area for a couple days while Alberto and I tune the servo.
  1163   Tue Nov 25 19:29:15 2008 rana, alberto, johnConfigurationEnvironmenttemperature

Quote:
The PSL Room Temperature was alarming because it had gone above 23 C. This set off an unfortunate chain of events:

We found that the PSL HEPA was set low (20%). This is a fine setting for when no one is working in there but it
does raise the temperature since there are heat sources inside the blue box.

We tried to change the office area temperature to compensate and also the westmost sensor inside the lab area by 2 deg F.

The office area one was problematic - there was so much dust in it that the gas valve nipple was clogged. So we've
now blown it all clean with a compressed air can. We're now tuning the calibration screw to make our new
digital sensor agree with the setpoint on the controller.

Expect wild temperature swings of the office area for a couple days while Alberto and I tune the servo.


This morning Bob found 92F in the office area and in the control room of the lab. He turned down the thermostat and when I got in at about 9 I found 65. After a few hours of adjustment of the thermostat's calibration, I could stabilize the room temperature to about 72F. I also turned down the thermostats inside the lab of a couple of degrees F.
  1164   Thu Nov 27 22:56:42 2008 ranaConfigurationEnvironmenttemperature
8-)
Attachment 1: mc.png
mc.png
  1209   Wed Dec 31 22:59:40 2008 YoichiSummaryEnvironmentParticle counts going crazy
Yes it is a new year's eve, and a lot of crazy people are on Colorado to secure seats for the parade tomorrow.
They are burning woods to warm themselves. So smoky smell is floating around in the campus
and naturally the particle count is going up.

Actually at first I thought some building is on fire and called the security. Then they found
that it is the people on Colorado.

Now C1:PEM-count_half is 28400 and it is still climbing up.
  1211   Thu Jan 1 01:07:03 2009 YoichiSummaryEnvironmentParticle counts going crazy
I increased the fan speed of the PSL HEPA filter to the maximum.


Quote:
Yes it is a new year's eve, and a lot of crazy people are on Colorado to secure seats for the parade tomorrow.
They are burning woods to warm themselves. So smoky smell is floating around in the campus
and naturally the particle count is going up.

Actually at first I thought some building is on fire and called the security. Then they found
that it is the people on Colorado.

Now C1:PEM-count_half is 28400 and it is still climbing up.
  1512   Thu Apr 23 18:09:11 2009 YoichiUpdateEnvironmentEffect of cryopump
The attached is the trend plot of the MC1 accelerometer for 3 days.
It is evident that the seismic level increased by a factor of two on Wednesday morning (when Steve started the cryopump).
Attachment 1: SeisTrend.pdf
SeisTrend.pdf
  1513   Thu Apr 23 21:13:37 2009 YoichiSummaryEnvironmentMag. 4 earthquake in LA tripped the watchdogs of the most optics
So far, no damage is noticeable.
restoreWatchdog script was useful Smile
-------------------------------------------------------
Magnitude    4.0
Date-Time    * Friday, April 24, 2009 at 03:27:50 UTC
             * Thursday, April 23, 2009 at 08:27:50 PM at epicenter 
Location     33.910N, 117.767W
Depth	     0 km (~0 mile) (poorly constrained)
Region	     GREATER LOS ANGELES AREA, CALIFORNIA
-------------------------------------------------------
  1539   Fri May 1 18:51:34 2009 AlbertoSummaryEnvironmentearthquake

Earthquake 4.4 Leo Carrillo Beach.

Some of the watchdogs tripped out.

  1594   Sun May 17 20:50:38 2009 robOmnistructureEnvironmentmag 5.0 earthquake in inglewood

2009 May 18 03:39:36 UTC

Earthquake Details

Magnitude 5.0
Date-Time
  • Monday, May 18, 2009 at 03:39:36 UTC
  • Sunday, May 17, 2009 at 08:39:36 PM at epicenter
Location 33.940°N, 118.338°W
Depth 13.5 km (8.4 miles)
Region GREATER LOS ANGELES AREA, CALIFORNIA
Distances
  • 2 km (1 miles) E (91°) from Lennox, CA
  • 2 km (1 miles) SSE (159°) from Inglewood, CA
  • 3 km (2 miles) NNE (22°) from Hawthorne, CA
  • 7 km (4 miles) ENE (72°) from El Segundo, CA
  • 15 km (10 miles) SSW (213°) from Los Angeles Civic Center, CA
Location Uncertainty horizontal +/- 0.4 km (0.2 miles); depth +/- 0.9 km (0.6 miles)
Parameters Nph=139, Dmin=7 km, Rmss=0.42 sec, Gp= 40°,
M-type=local magnitude (ML), Version=C
Source
Event ID ci10410337
  1596   Sun May 17 23:22:19 2009 ranaUpdateEnvironmentseisBLRMS for the past 3 weeks
Looks like Chris Wipf's fix of using fclose worked for the NDS client.
The attached plot shows the minute trend RMS - we should put the calibration for these into the .m file
so that the EPICS values are in something useful like microns or microns/sec.

I also now see why Nodus seems really slow with the elog sometimes. When we load a page with an attached
PDF, it runs 'gs' to try to generate the PNG preview. Because its on Solaris it often fails because it
can't find some font. We should probably disable the preview or fix the font issue.
Attachment 1: Untitled.png
Untitled.png
  1613   Wed May 20 10:43:17 2009 steveOmnistructureEnvironmentaccelerometers sensitivity

Quote:

2009 May 18 03:39:36 UTC

Earthquake Details

Magnitude 5.0
Date-Time
  • Monday, May 18, 2009 at 03:39:36 UTC
  • Sunday, May 17, 2009 at 08:39:36 PM at epicenter
Location 33.940°N, 118.338°W
Depth 13.5 km (8.4 miles)
Region GREATER LOS ANGELES AREA, CALIFORNIA
Distances
  • 2 km (1 miles) E (91°) from Lennox, CA
  • 2 km (1 miles) SSE (159°) from Inglewood, CA
  • 3 km (2 miles) NNE (22°) from Hawthorne, CA
  • 7 km (4 miles) ENE (72°) from El Segundo, CA
  • 15 km (10 miles) SSW (213°) from Los Angeles Civic Center, CA
Location Uncertainty horizontal +/- 0.4 km (0.2 miles); depth +/- 0.9 km (0.6 miles)
Parameters Nph=139, Dmin=7 km, Rmss=0.42 sec, Gp= 40°,
M-type=local magnitude (ML), Version=C
Source
Event ID ci10410337

 Wilcoxon 731A seismic accelerometers and Guralp CMG-40T-old seismometer at magnitude 5 and 4 erthquakes

Attachment 1: eq5m4.jpg
eq5m4.jpg
  1614   Wed May 20 16:03:52 2009 steveOmnistructureEnvironmentusing OSEMs to look at seismic activity

Rana suggested using OSEM sensing voltages as guide lines to look seismic activity.

As you see todays drilling and tumping activity was nothing compared to the EQ of mag 5 and 4

Optic level servos are turned back on.

 

What Steve means is that there is some drilling going on in the CES shop to accomodate the new water flume group. We want to

make sure that the mirrors don't move enough to break the magnets. On the dataviewer we should look to make sure that the

sensor channels stay between 0-2 V.     -Rana

 

Attachment 1: eqOSEM5m4.jpg
eqOSEM5m4.jpg
  1706   Fri Jun 26 19:14:04 2009 ranaUpdateEnvironmentseisBLRMS for the past 3 weeks
Restarted the seisBLRMS.m on mafalda (running a term on op540m). Don't know why it stopped - the
terminal had a 'disabled by EPICS' message even though the EPICS enable button was enabled.

I also changed the delay from 4 to 2 minutes. So now it is calculating a 64 s PSD starting from 2 minutes ago. We had
put it back to 4 minutes long ago since the framebuilder was acting slow, but maybe it will work now since its using
the NDS1 protocol instead of direct frame reading. If it starts not finding data, please kill the seisBLRMS and restart
it with a 3 minute delay.
  1730   Fri Jul 10 17:32:08 2009 ranaUpdateEnvironmentseisBLRMS & mafalda restarted
Rana, Alberto

Mafalda's ethernet cable had fallen out of the connector on the hub-side. We reconnected it and rebooted mafalda and restarted seisBLRMS.

Mafalda didn't mount /cvs/cds on start up for some reason. I mounted it using 'sudo mount linux1:/home/cds /cvs/cds' and it took at least
30 seconds, so maybe there's a timeout issue. Seems OK now.
  1731   Fri Jul 10 19:56:23 2009 rana, kojiOmnistructureEnvironmentChanged office temp

I have increased the temperature setpoint in the office area by ~0.75 deg F. Figure attached. Also a few days ago I increased the setpoint of the AC in the control room. Looks like the Laser is able to handle the changes in office area temperature so far, but lets see how it fares over the weekend.

Attachment 1: therm.JPG
therm.JPG
  1732   Sun Jul 12 20:05:06 2009 ranaOmnistructureEnvironmentChanged office temp
This is a 7-day minute trend. There's no obvious effect in any of the channels looking back 2 days.

Seems like the laser chiller fix has made the laser much more immune to the office area temperature.
Attachment 1: Picture_3.png
Picture_3.png
  1738   Mon Jul 13 15:48:05 2009 ranaOmnistructureEnvironmentRemoval of the cold air deflection device for the MOPA chiller
Around 2 PM today, I removed the blue flap which has been deflecting the cold air from the AC down into the laser chiller.
Let's watch the laser trends for a few days to see if there's any effect.
  1740   Mon Jul 13 23:03:14 2009 rob, albertoOmnistructureEnvironmentRemoval of the cold air deflection device for the MOPA chiller

Quote:
Around 2 PM today, I removed the blue flap which has been deflecting the cold air from the AC down into the laser chiller.
Let's watch the laser trends for a few days to see if there's any effect.


Alberto has moved us to stage 2 of this experiment: turning off the AC.

The situation at the control room computers with the AC on minus the blue flap is untenable--it's too cold and the air flow has an unpleasant eye-drying effect.
  1741   Tue Jul 14 00:32:46 2009 rob, albertoOmnistructureEnvironmentRemoval of the cold air deflection device for the MOPA chiller

Quote:

Quote:
Around 2 PM today, I removed the blue flap which has been deflecting the cold air from the AC down into the laser chiller.
Let's watch the laser trends for a few days to see if there's any effect.


Alberto has moved us to stage 2 of this experiment: turning off the AC.

The situation at the control room computers with the AC on minus the blue flap is untenable--it's too cold and the air flow has an unpleasant eye-drying effect.


I turned the AC back on because the temperature of the room was going up so also that of the laser chiller.
  1745   Tue Jul 14 17:48:20 2009 JenneOmnistructureEnvironmentRemoval of the cold air deflection device for the MOPA chiller

Quote:

Quote:

Quote:
Around 2 PM today, I removed the blue flap which has been deflecting the cold air from the AC down into the laser chiller.
Let's watch the laser trends for a few days to see if there's any effect.


Alberto has moved us to stage 2 of this experiment: turning off the AC.

The situation at the control room computers with the AC on minus the blue flap is untenable--it's too cold and the air flow has an unpleasant eye-drying effect.


I turned the AC back on because the temperature of the room was going up so also that of the laser chiller.


I reinstalled the blue-flap technology on the AC, because the MOPA power was dropping like a rock. A light-ish rock since it wasn't going down too fast, but the alarms started going a little while ago because PMC trans was too low, because the power was getting a little low. The laser water chiller is reading 21.97C, which is higher than it normally does/did before the AC shenanigans (It usually reads 20.00C).

Attached is a look-back of 18 hours, during which you can see in the AMPMON the time that Rana removed the blue flap around 2pm yesterday and the AMPMON changes a little bit, but not drastically, the time around 11pm when the AC was turned off, and AMPMON goes down pretty fast, and about 12:30am, when Alberto turned the AC back on, and AMPMON starts to recover. I think that the AMPMON starts to go down again in the morning because it's been crazy hot here in Pasadena, so the room might be getting warmer, especially with the laser chiller-chiller not actively chilling the laser chiller (by not being pointed at the water chiller), so the water isn't getting as cold, and the HTEMP started to go up.

In the last few minutes of having put the blue flap back on the AC, the laser chiller is already reading a lower temperature, and the AMPMON is starting to recover.
Attachment 1: ACeffectonLASER2.png
ACeffectonLASER2.png
  1927   Wed Aug 19 02:17:52 2009 ranaOmnistructureEnvironmentControl Room Workstation desks lowered to human height

There were no injuries...Now we need to get some new chairs.

  2046   Fri Oct 2 18:26:32 2009 robAoGEnvironmentearthquake

quake coming through.  I've re-enabled optic damping (except ETMY), and left off the oplevs for now.  We can do a resonant-f  check over the weekend.

Looks like it was a magnitude 5 near Olancha, where they sell really good fresh jerky.  quake

Earthquake Details

Magnitude 5.2
Date-Time
  • Saturday, October 03, 2009 at 01:15:59 UTC
  • Friday, October 02, 2009 at 06:15:59 PM at epicenter
Location 36.393°N, 117.877°W
Depth 0 km (~0 mile) (poorly constrained)
Region CENTRAL CALIFORNIA
Distances
  • 11 km (7 miles) S (182°) from Keeler, CA
  • 16 km (10 miles) ENE (59°) from Cartago, CA
  • 18 km (11 miles) NE (37°) from Olancha, CA
  • 28 km (17 miles) SE (141°) from Lone Pine, CA
  • 239 km (148 miles) W (276°) from Las Vegas, NV
Location Uncertainty horizontal +/- 0.6 km (0.4 miles); depth +/- 2.2 km (1.4 miles)
Parameters Nph=030, Dmin=19 km, Rmss=0.28 sec, Gp= 79°,
M-type=local magnitude (ML), Version=C
Source
Event ID ci14519780
  • This event has been reviewed by a seismologist.

latest news: there's actually been about a dozen earthquakes in Keeler in the last couple hours:   http://earthquake.usgs.gov/eqcenter/recenteqsus/Maps/special/California_Nevada_eqs.php

California_Nevada.gif-Rana

  2059   Tue Oct 6 20:09:50 2009 JenneOmnistructureEnvironmentRF area is clean!

I spent part of the afternoon cleaning up the area next to the Mode Cleaner where we keep all of our RF stuff:  Attenuators, BNC/SMA/LEMO adapters, Mini-Circuits items, and all sorts of other things which are useful while looking at our electronics/RF stuff.

We got another set of "Lyon" drawers, which aided in the organization process....Bob ordered 2, so we now have a 'spare' drawer set if anyone can think of something else to organize (unless this was premeditated for optics or something else?).

As you can see in the picture, (1) it's no longer a total disaster over there, and (2) some of the drawers have sub-divisions to make it faster and easier to find what you're looking for.  Please help out by putting things away in their proper place, and adding more labels or dividers to the drawers if there's something else which needs a 'spot'.

Attachment 1: DSC_0894.JPG
DSC_0894.JPG
  2060   Tue Oct 6 23:39:54 2009 KojiOmnistructureEnvironmentRF area is clean!

Awesome.

I propose that anyone who tries to do this kind of thoroughgoing cleaning should make an e-mail to call everyone available to join just for some hours
because every member has a responsibility to keep the lab organized.

And we have the list of things to do: Electronics (now it is halfway) / Cables / Optics / Screws / Tools ...

Quote:

I spent part of the afternoon cleaning up the area next to the Mode Cleaner where we keep all of our RF stuff:  Attenuators, BNC/SMA/LEMO adapters, Mini-Circuits items, and all sorts of other things which are useful while looking at our electronics/RF stuff.

We got another set of "Lyon" drawers, which aided in the organization process....Bob ordered 2, so we now have a 'spare' drawer set if anyone can think of something else to organize (unless this was premeditated for optics or something else?).

As you can see in the picture, (1) it's no longer a total disaster over there, and (2) some of the drawers have sub-divisions to make it faster and easier to find what you're looking for.  Please help out by putting things away in their proper place, and adding more labels or dividers to the drawers if there's something else which needs a 'spot'.

 

  2210   Mon Nov 9 12:09:10 2009 AlbertoOmnistructureEnvironmentBNC Cable Laid Down from South End to East VErtex

I laid down the floor a BNC cable from the Y End table to the BNC Chamber. The cable runs next to the east wall.

I'm leaving the cable because it can turn useful in the future.

I'm tying the end of the cable to a big threaded steel rod on the side of the BS chamber.

I've also labeled as TRY

Attachment 1: DSC_0986.JPG
DSC_0986.JPG
  2213   Mon Nov 9 13:26:19 2009 AlbertoOmnistructureEnvironmentTidying up BNC cables rack around the lab

We have thousands of miles of BNC cables in the lab but we still don't find one when we need it. I decided to solve the problem.

This morning I tried to tidy up the several cable rack the we have in the lab.

i tried to dedicate each rack to a speecific type of cables: special cables, hand made cables, BNCs, LEMOs, etc.

In particular I tryed to concentrate BNC cable of several lengths on the rack near by the ITMX chamber.

People are invited to preserve the organization.

 

Attachment 1: DSC_0987.JPG
DSC_0987.JPG
  2214   Mon Nov 9 14:53:47 2009 AlbertoOmnistructureEnvironmentTidying up BNC cables rack around the lab

This would be a good trial once you put the label "BNC only" on the wall.

Quote:

We have thousands of miles of BNC cables in the lab but we still don't find one when we need it. I decided to solve the problem.

This morning I tried to tidy up the several cable rack the we have in the lab.

i tried to dedicate each rack to a speecific type of cables: special cables, hand made cables, BNCs, LEMOs, etc.

In particular I tryed to concentrate BNC cable of several lengths on the rack near by the ITMX chamber.

People are invited to preserve the organization.

 

  2216   Mon Nov 9 15:08:29 2009 KojiOmnistructureEnvironmentTidying up BNC cables rack around the lab

Quote:

This would be a good trial once you put the label "BNC only" on the wall.

Quote:

We have thousands of miles of BNC cables in the lab but we still don't find one when we need it. I decided to solve the problem.

This morning I tried to tidy up the several cable rack the we have in the lab.

i tried to dedicate each rack to a speecific type of cables: special cables, hand made cables, BNCs, LEMOs, etc.

In particular I tryed to concentrate BNC cable of several lengths on the rack near by the ITMX chamber.

People are invited to preserve the organization.

 

 

Done! Check it out.

  2219   Mon Nov 9 16:32:36 2009 AlbertoFrogsEnvironmentShot of the white board yesterday before erasing

Yesterday Rana and I needed some room on the white board in the Control Room. We had to erase some of the stuff present on the board despite the bif warning "Do Not Erase".

This is how it looked like before erasing.

DSC_0980.JPG

Attachment 1: DSC_0980.JPG
DSC_0980.JPG
  2279   Tue Nov 17 10:09:57 2009 josephbUpdateEnvironmentFumes

The smell of diesel is particularly bad this morning.  Its concentrated enough to be causing me a headache.  I'm heading off to Millikan and will be working remotely on Megatron.

  2296   Thu Nov 19 08:53:12 2009 peteFrogsEnvironmentdiesel fumes

 Instead of doing RCG stuff, I went to Millikan to work on data analysis as I couldn't stand the fumes from the construction.  (this morning, 8am) 

  2308   Fri Nov 20 13:54:45 2009 AlbertoOmnistructureEnvironmentNew Paper and Cardboard Recycling Bins Introduced to the 40m

The 40m produces a large amount of paper and cardboard waste. It would be worth it if we disposed those kind of garbages for recycling.

I set up two new garbage bins in the lab: one in the control rooms that adds up to the can/bottle recycling bin, and one other one in the office area, next to the printer for general paper disposal.

People in the lab are strongly invited to make use of the two new garbage bins and recycle their paper and cardboard waste.

Boxes can be larger than the garbage bin, so I'd recommend people to crash them before throwing them into the bin.

DSC_1030.JPG

DSC_1031.JPG

  2377   Thu Dec 10 08:43:25 2009 steveFrogsEnvironmentdiesel fumes are less

Quote:

 Instead of doing RCG stuff, I went to Millikan to work on data analysis as I couldn't stand the fumes from the construction.  (this morning, 8am) 

 Diesel fumes are pumped away from control room AC intakes  with the help of newly installed  reflector boxes on the CES wall  fans.........see # 2272

Attachment 1: P1050817.JPG
P1050817.JPG
  2408   Mon Dec 14 00:37:28 2009 KojiOmnistructureEnvironmentAnts in the coffee maker

I made a short stop at the 40m on Sunday night and found that hundreds ants are in the coffee maker.
I removed ants around the sink and washed the coffee maker.

It looked the ants were everywhere in the lab tonight. They seemed to prefer warm places like in the coffee maker and below the coffee mill.
So, I recommend that Steve should confirm there is no ants in the coffee maker again before the first coffee of the week is made.
Othewise they will add some more acidity to your cup.

 

  2409   Mon Dec 14 11:21:23 2009 steveOmnistructureEnvironmentAnts in the coffee maker

 

 We still had some ants visiting the sink area this morning. These ants seem to be addicted to our our Peet's coffe

Spectracide: Bug Stop insect killer was sprayed. Please wash your eating dishes well ! and keep area clean.

 

  2428   Thu Dec 17 17:13:50 2009 AlbertoOmnistructureEnvironmentSTACIS stuff
One of the electronics benches is currently occupied by the STACIS equipment.
We need that table If no one is working on the STACIS anymore, it should be removed from there.
  2477   Tue Jan 5 10:26:32 2010 Alberto, SteveOmnistructureEnvironmentAdded new wall cable-racks

we hung two new WALL cable racks. One is on the pillar next to the Sp table, the other is next to the PSL computer rack.

To do that we had to drill holes in the wall since the simple screws weren't strong enough to keep them up.

One of the racks, the yellow, is dedicated to 4-pin lemos and other thick cables.

DSC_1068-1.JPGDSC_1070-1.JPG

  2478   Tue Jan 5 11:00:04 2010 ranaOmnistructureEnvironmentAdded new wall cable-racks

Quote:

we hung two new WALL cable racks. One is on the pillar next to the Sp table, the other is next to the PSL computer rack.

 awesome - I have ordered 5 blue racks so that we can hang power cables. The fat BLUE ones are for fat cables and the orange ones for the coax cables.

  2479   Tue Jan 5 13:23:45 2010 AlbertoOmnistructureEnvironmentturning page

In the lab there are lots of old posters with outdated autocad drawings, or printouts with schematics of old electronics hanging on the walls.

Can we get rid of those and start giving the lab a fresh and modern look?

  2496   Sun Jan 10 16:05:51 2010 AlbertoOmnistructureEnvironmentLab Thermostats Temperature Lowered by 1 deg F

Rana noticed that recently the temperature inside the lab has been a little bit too high. That might be causing some 'unease' to the computers with the result of making them crash more often.

Today I lowered the temperature of the three thermostats that we have inside the lab by one degree:
Y arm thermostat: from 71 to 70 F
X arm thermostat: from 70 to 69 F
Aisle thermostat: from 72 to 71 F.

For the next hours I'll be paying attention to the temperature inside the lab to make sure that it doesn't go out of control and that the environment gets too cold.

  2501   Mon Jan 11 10:01:06 2010 AlbertoOmnistructureEnvironmentLab Thermostats Temperature Lowered by 1 deg F

Quote:

Rana noticed that recently the temperature inside the lab has been a little bit too high. That might be causing some 'unease' to the computers with the result of making them crash more often.

Today I lowered the temperature of the three thermostats that we have inside the lab by one degree:
Y arm thermostat: from 71 to 70 F
X arm thermostat: from 70 to 69 F
Aisle thermostat: from 72 to 71 F.

For the next hours I'll be paying attention to the temperature inside the lab to make sure that it doesn't go out of control and that the environment gets too cold.

 Today the lab is perceptibly cooler.

The temperature around the corner is 73 F.

  2511   Tue Jan 12 14:28:01 2010 steveSummaryEnvironmentlab temp of 7 years

Quote:

Quote:

Rana noticed that recently the temperature inside the lab has been a little bit too high. That might be causing some 'unease' to the computers with the result of making them crash more often.

Today I lowered the temperature of the three thermostats that we have inside the lab by one degree:
Y arm thermostat: from 71 to 70 F
X arm thermostat: from 70 to 69 F
Aisle thermostat: from 72 to 71 F.

For the next hours I'll be paying attention to the temperature inside the lab to make sure that it doesn't go out of control and that the environment gets too cold.

 Today the lab is perceptibly cooler.

The temperature around the corner is 73 F.

 

Attachment 1: labtemp7y.png
labtemp7y.png
  2520   Mon Jan 18 09:44:36 2010 Alberto, BobOmnistructureEnvironmentNo rain water infiltrations so far

It has rained continuously for the last 24 hours. Bob walked through the lab looking for possible water infiltrations. The floor looked dry: no puddles or leaks anywhere so far.

  2667   Thu Mar 11 15:24:51 2010 steveMetaphysicsEnvironmentIFO was well protected

Quote:

There is a planned power outage tomorrow, Saturday from 7am till midnight.

I vented all annulies and switched to ALL OFF configuration. The small region of the RGA is still under vacuum.

The vac-rack: gauges, c1vac1 and UPS turned off.

 It turns out that we perfecly timed the big one

In the process of finding the signal of the big chilean earthquake I just realized that we were all off

  2675   Tue Mar 16 04:22:02 2010 JenneUpdateEnvironmentEarthquake, Mag 4.4

Earthquake Details

Magnitude 4.4
Date-Time
  • Tuesday, March 16, 2010 at 11:04:00 UTC
  • Tuesday, March 16, 2010 at 04:04:00 AM at epicenter
Location 33.998°N, 118.072°W
Depth 18 km (11.2 miles)
Region GREATER LOS ANGELES AREA, CALIFORNIA
Distances
  • 2 km (1 miles) ENE (58°) from Pico Rivera, CA
  • 4 km (3 miles) ESE (115°) from Montebello, CA
  • 4 km (3 miles) SSW (207°) from Whittier Narrows Rec. Area, CA
  • 9 km (5 miles) NE (39°) from Downey, CA
  • 9 km (6 miles) SSW (206°) from El Monte, CA
  • 17 km (11 miles) ESE (112°) from Los Angeles Civic Center, CA
Location Uncertainty horizontal +/- 0.4 km (0.2 miles); depth +/- 0.9 km (0.6 miles)
Parameters Nph=122, Dmin=5 km, Rmss=0.37 sec, Gp= 25°,
M-type=local magnitude (ML), Version=2
Source
Event ID

ci14601172

-----------------------------------------

MC1 and MC3 seem to have kept themselves together, but all the other optics' watchdogs tripped.

Attachment 1: EQ_16Mar2010.png
EQ_16Mar2010.png
  2676   Tue Mar 16 05:10:39 2010 kojiUpdateEnvironmentEarthquake, Mag 4.4

Some of the suspensions got watchdog tripped -> enabled -> damped.

The MC mirrors got slightly misaligned.

 

Attachment 1: 100316_MC_SUS.png
100316_MC_SUS.png
  2874   Mon May 3 19:21:43 2010 AlbertoDAQEnvironmentBoot fest

[Alberto, Koji, Rana]

The RFM network failed today. We had to reboot the frame builder anf restart all the front end following the instructions for the "Nuclear Option".

Burt-restoring to May 1st at 18:07, or April 30 18:07 made c1sosvme crash. We had to reset the front ends again and restore to April 15th at 18:07 in order to make everything work.

Everything seems fine again now.

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