| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
13442
|
Tue Nov 21 23:47:51 2017 |
gautam | Configuration | Computers | nodus post OS migration admin | I restored the nodus crontab (copied over
from the Nov 17 backup of the same at /opt/rtcds/caltech/c1/scripts/crontab/crontab_nodus.20171117080001.
There wasn't a crontab, so I made one |
|
|
13443
|
Wed Nov 22 00:54:18 2017 |
johannes | Omnistructure | Computers | Slow DAQ replacement computer progress | I got the the SuperMicro 1U server box
from Larry W on Monday and set it up in the
CryoLab for initial testing. |
|
|
13444
|
Wed Nov 22 05:41:32 2017 |
rana | Update | Optical Levers | Oplev "noise budget" | For the OL NB, probably don't have
to fudge any seismic noise, since that's
a thing we want to suppress. More important |
|
|
13445
|
Wed Nov 22 11:51:38 2017 |
gautam | Configuration | Computers | nodus post OS migration admin | Confirmed that this crontab is running
- the daily backup of the crontab seems to
have successfully executed, and there is |
|
|
13446
|
Wed Nov 22 12:13:15 2017 |
Kira | Update | PEM | seismometer can testing | Updated some values, most importantly,
the k-factor. I had assumed that it was in
the correct units already, but when converting |
|
|
13447
|
Wed Nov 22 14:47:03 2017 |
Kira | Update | PEM | seismometer can testing | For the insulation, I have decided to use
this
one (Buna-N/PVC Foam Insulation |
|
|
13448
|
Wed Nov 22 15:29:23 2017 |
gautam | Update | Optical Levers | Oplev "noise budget" | [steve,
gautam]
What is the best way to set this |
|
|
13449
|
Wed Nov 22 16:40:00 2017 |
Koji | Update | Optical Levers | Oplev "noise budget" | You may want to consult with the cryo Q
people (Brittany, Aaron) for a Si QPD. If
you want the same QPD architecture, I can |
|
|
13450
|
Wed Nov 22 17:52:25 2017 |
gautam | Update | Optimal Control | Visualizing cost functions | I've attempted to visualize the various
components of the cost function in the way
I've defined it for the current iteration |
|
|
13451
|
Wed Nov 22 19:20:01 2017 |
rana | Update | Optical Levers | Oplev "noise budget" | too complex; just shoot straight from the
HeNe to the QPD. We lower the gain of the
QPD by changing the resistors; there's |
|
|
13452
|
Wed Nov 22 23:56:14 2017 |
gautam | Update | Optical Levers | Oplev "noise budget" | Do not turn
on BS/ITMY/SRM/PRM Oplev servos without reading |
|
|
13453
|
Thu Nov 23 18:03:52 2017 |
gautam | Update | Optical Levers | Oplev "noise budget" | Here are a couple of preliminary plots
of the noise from a 20minute stretch of data
- the new curve is the orange |
|
|
13454
|
Sun Nov 26 19:38:40 2017 |
Steve | Update | VAC | TP3 drypump replaced again | The TP3 foreline pressure was 4.8 Torr,
50K rpm 0.54A and 31C........Maglev rotation
normal 560 Hz....... IFO pressure |
|
|
13455
|
Tue Nov 28 16:02:32 2017 |
rana | Update | PEM | seismometer can testing | I've ordered 4 of these from McMaster.
Should be delivered to the 40m by noon tomorrow.
|
|
|
13456
|
Tue Nov 28 17:27:57 2017 |
awade | Bureaucracy | Calibration-Repair | SR560 return, still not charging | I brought a bunch of SR560s over for repair
from Bridge labs. This unit, picture attached
(SN 49698), appears to still not be |
|
|
13457
|
Wed Nov 29 15:33:16 2017 |
rana | Update | PSL | PMC locking | PMC wasn't locking. Had to power down
c1psl. Did burt restore. Still not great.
I think many of the readbacks on |
|
|
13458
|
Wed Nov 29 21:40:30 2017 |
johannes | Omnistructure | Computers | Slow DAQ replacement computer progress | [Aaron, Johannes]
We
configured the AtomServer for the Martian |
|
|
13459
|
Thu Nov 30 10:38:39 2017 |
Steve | Update | VAC | annuloses are not pumped | Annuloses are not pumped for 30 days, since
TP2 failed. IFO pressure 7e-6 Torr
it, Rga 2.6e-6 Torr |
|
|
13460
|
Fri Dec 1 17:09:29 2017 |
Udit Khandelwal | Summary | General | | Current objectives and statuses:
CAD Model of 40m lab (facility,
chambers, invacuum components etc)
Status: |
|
|
13461
|
Sun Dec 3 05:25:59 2017 |
gautam | Configuration | Computers | sendmail installed on nodus | Pizza mail didn't go out last weekend
- looking at logfile, it seems like the "sendmail"
service was missing. I installed sendmail |
|
|
13462
|
Sun Dec 3 17:01:08 2017 |
Koji | Configuration | Computers | sendmail installed on nodus | An email has come at 5PM on Dec 3rd.
|
|
|
13463
|
Mon Dec 4 22:06:07 2017 |
johannes | Omnistructure | Computers | Acromag XEND progress | I wired up the power distribution, and
ethernet cables in the Acromag chassis today.
For the time being it's all kind of loose |
|
|
13464
|
Thu Dec 7 11:14:37 2017 |
johannes | HowTo | Computer Scripts / Programs | Lots of red on the FE status screen | Since we're getting ready to put the
replacement slow DAQ for c1auxex in I wanted
to bring the IFO back to operating condition |
|
|
13465
|
Thu Dec 7 15:02:37 2017 |
Koji | HowTo | Computer Scripts / Programs | Lots of red on the FE status screen | Once a realtime machine was rebooted, it
did not come back. I suspect that the diskless
hosts have a difficulty to boot up. |
|
|
13466
|
Thu Dec 7 15:46:31 2017 |
johannes | HowTo | Computer Scripts / Programs | Lots of red on the FE status screen | [Koji, Johannes]
The issue was partially fixed and
the interferometer is in workable condition |
|
|
13467
|
Thu Dec 7 16:28:06 2017 |
Koji | Update | IOO | Lots of red on the FE status screen | Once the RT machines were back, we launched
only the five IOPs. They had bunch of red
lights, but we continued to run essential |
|
|
13468
|
Thu Dec 7 22:24:04 2017 |
johannes | Omnistructure | Computers | Acromag XEND progress |
|
|
|
13469
|
Fri Dec 8 12:06:59 2017 |
johannes | Omnistructure | Computers | c1auxex2 ready - but need more cables | The new slow machine c1auxex2
is ready to deploy. Unfortunately we don't
have enough 37pin DSub cables to connect |
|
|
13470
|
Fri Dec 8 23:31:31 2017 |
johannes | Frogs | ASS | c1ass slow channel offloading scripts with small | While staring at epics records all day
I noticed something about the PIT/YAW offset
sliders and ASS offset offloading to slow |
|
|
13471
|
Wed Dec 13 09:49:23 2017 |
johannes | Update | ASS | wiring diagram | I attached a wiring schematic from the
slow DAQ to the eurocrate modules. Of these,
pins 1-32 (or 1A-16C) and pins 33-64 (17A-32C) |
|
|
13472
|
Wed Dec 13 17:46:08 2017 |
Udit Khandelwal | Summary | General | Summary of Current Tasks | 40m
Lab CAD
1. 40m_bldg.dwg has 2D drawing |
|
|
13473
|
Thu Dec 14 00:32:56 2017 |
johannes | Update | ASS | Acromag new crate; c1auxex2 configured as gateway server for acromag | This splicing in of fast binary channels
we discussed at yesterday's and today's
meetings is getting messy with the current |
|
|
13474
|
Thu Dec 14 07:07:09 2017 |
rana | Update | IOO | Lots of red on the FE status screen | I had to key the c1psl crate to get the
PMC locking again. Without this, it would
still sort of lock, but it was very hard |
|
|
13475
|
Thu Dec 14 08:59:17 2017 |
Steve | Update | General | we are here | |
|
|
13476
|
Thu Dec 14 19:33:20 2017 |
gautam | Frogs | ASS | c1ass slow channel offloading scripts with small | I
don't think this is really a problem |
|
|
13477
|
Thu Dec 14 19:41:00 2017 |
gautam | Update | CDS | CDS recovery, NFS woes | [Koji, Jamie(remote), gautam]
Summary:
The CDS system seems to be back up and functioning. |
|
|
13478
|
Thu Dec 14 23:27:46 2017 |
johannes | Update | DAQ | aux chassis design | Made a front and back panel and slot panels
for DSub and IDC breakouts. I want to send
this out soon, are there any comments? Preferences |
|
|
13479
|
Fri Dec 15 00:26:40 2017 |
johannes | Update | CDS | Re: CDS recovery, NFS woes |
Quote:
|
|
|
13480
|
Fri Dec 15 01:53:37 2017 |
jamie | Update | CDS | CDS recovery, NFS woes |
Quote:
|
|
|
13481
|
Fri Dec 15 11:19:11 2017 |
gautam | Update | CDS | CDS recovery, NFS woes | Looking at the dmesg on c1iscex for example,
at least part of the problem seems to be
associated with FB1 (192.168.113.201, see |
|
|
13482
|
Fri Dec 15 17:05:55 2017 |
gautam | Update | PEM | Trillium seismometer DC offset | Yesterday, while we were bringing the CDS
system back online, we noticed that the control
room wall StripTool traces for the seismic |
|
|
13483
|
Fri Dec 15 18:23:03 2017 |
rana | Update | PEM | Trillium seismometer DC offset | UVW refers to the 3 internal, orthogonal
velocity sensors which are not aligned with
the vertical or horizontal directions. XYZ |
|
|
13484
|
Fri Dec 15 18:24:46 2017 |
rana | Summary | Optical Levers | PRM | Today Angelina and I looked at the PRM
OL with an eye towards installing a 2nd QPD.
We want to try out |
|
|
13485
|
Fri Dec 15 19:09:49 2017 |
gautam | Update | IOO | IMC lockloss correlated with PRM alignment? | Motivation:
To
test the hypothesis that the IMC lock duty |
|
|
13486
|
Mon Dec 18 16:45:44 2017 |
gautam | Update | IOO | IMC lockloss correlated with PRM alignment? | I stopped the test earlier today morning
around 11:30am. The log file is located at
|
|
|
13487
|
Mon Dec 18 17:48:09 2017 |
rana | Update | Computers | rossa: SL7.3 upgrade continues | Following instructions
from LLO-CDS fo the rossa upgrade. Last time
there were some issues with not being to |
|
|
13488
|
Mon Dec 18 20:37:18 2017 |
gautam | Update | PSL | PMC MEDM cleanup | There are fewer lies on this screen now.
For reference, the details of the electronics
modifications made are in this |
|
|
13489
|
Wed Dec 20 00:43:58 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I looked into the DAC noise
contribution to the noise budget for homodyne
detection at the 40m. DAC noise is currently |
|
|
13490
|
Thu Dec 21 19:25:48 2017 |
Kevin | Summary | General | DAC noise contribution to squeezing noise budget | Gautam and I redid our calculations, and
the updated plot of squeezing as a function
of DAC current noise per coil is shown in |
|
|
13491
|
Fri Dec 22 09:40:19 2017 |
rana | Summary | General | DAC noise contribution to squeezing noise budget |
Should not count the ITMs. On those
we can use big resistors / filters to cut
out the noise.
For the initial |
|