| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12758
|
Wed Jan 25 19:39:07 2017 |
gautam | Update | IMC | 29.5 MHz modulation depth measurement plan | Just collecting some links from my elog
searching today here for easy reference later.
EOM datasheet: Newfocus |
|
|
12757
|
Wed Jan 25 18:18:08 2017 |
Koji | Summary | IOO | MCL / MCF / Calibration | jiSome notes on the FSS configuration:
ELOG
10321 |
|
|
12756
|
Wed Jan 25 17:30:03 2017 |
Koji | Update | IMC | 29.5 MHz modulation depth measurement plan | I'm afraid that the bidirectional coupler,
designed to be 50ohm in/out, disturbs the
resonant circuit designed for the EOM which |
|
|
12755
|
Wed Jan 25 15:41:29 2017 |
Lydia | Update | IMC | 29.5 MHz modulation depth measurement plan | [Lydia, gautam]
To measure the modulation depth
of the 29.5 MHz sideband, we plan to connect |
|
|
12754
|
Wed Jan 25 14:30:20 2017 |
gautam | Update | CDS | slow machine bootfest | [gautam, lydia]
We rebooted c1psl, |
|
|
12753
|
Wed Jan 25 10:46:58 2017 |
steve | Summary | SUS | oplev laser summary updated |
Oct. 5, 2015
ETMY He/Ne |
|
|
12752
|
Wed Jan 25 09:00:39 2017 |
Max Isi | Update | Summary Pages | Cluster maintenance | LDAS has not recovered from maintenance causing
the pages to remain unavailable until further
notice.
|
|
|
12751
|
Wed Jan 25 01:27:45 2017 |
gautam | Update | IMC | IMC feedforward checkup | This is probably just a confirmation of
something we discussed a couple of weeks
back, but I wanted to get more familiar with |
|
|
12750
|
Tue Jan 24 17:52:15 2017 |
Craig | Update | Optical Levers | ETMY Oplev HeNe is replaced | Steve, Craig, Gautam
Today Steve replaced the ETMY He/Ne
sr P919645 OpLev laser with sr P947049 and |
6x |
|
12749
|
Tue Jan 24 07:36:56 2017 |
Max Isi | Update | Summary Pages | Cluster maintenance | System-wide CIT LDAS cluster maintenance may
cause disruptions to summary pages today.
|
|
|
12748
|
Tue Jan 24 01:04:16 2017 |
gautam | Summary | IOO | IMC WFS RF power levels | Summary:
I got around to doing this measurement
today, using a minicircuits bi-directional |
|
|
12747
|
Mon Jan 23 17:24:26 2017 |
Steve | Update | Optical Levers | ETMY Oplev HeNe is running hot | ETMY He/Ne 1103P body temp is
~45 C The laser was seated loosely
in the V-mount with black rubber padding. |
|
|
12746
|
Mon Jan 23 15:16:52 2017 |
gautam | Update | Optical Levers | ETMY Oplev HeNe needs to be replaced | On the control room monitors, I noticed
that the IR TEM00 spot was moving around
rather a lot in the Y arm. The |
|
|
12745
|
Mon Jan 23 10:24:01 2017 |
Steve | Update | SUS | MC1 SUS electronics investigation | Two day plot of glitching suspentions:
MC3, ITMY and ETMX |
|
|
12744
|
Fri Jan 20 17:12:37 2017 |
Steve | Update | PEM | EM172 mic is hooked up in the PSL | Gautam and Steve,
It is hanging in the midle of the
PSL enclosure. Wired to 1X1 to get plus and |
|
|
12743
|
Fri Jan 20 14:42:12 2017 |
Steve | Update | PEM | Caltech weather station | We should be able to connect to this station |
|
|
12742
|
Fri Jan 20 11:16:30 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation | Both suspensions have been relatively well
behaved for the best part of the last two
days, since I effected the Satellite Box |
|
|
12741
|
Thu Jan 19 19:56:09 2017 |
rana | Update | SUS | MC1 SUS electronics investigation | Might be. Or it might be in the satellite
box cabling. Hard to tell without a tester.
I recommend you squish the cables on there |
|
|
12740
|
Thu Jan 19 16:36:35 2017 |
ericq | Update | Computer Scripts / Programs | nodus web apache simlinks too soft |
|
|
|
12739
|
Thu Jan 19 12:00:10 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation | Going through the last ~20 hours of data,
the MC1 sensor channels look glitch free
the entire period. However, there is a ~10min |
|
|
12738
|
Thu Jan 19 10:21:54 2017 |
Ashley | Update | General | Preliminary Microphone Data | Brief Summary:
I am currently looking at the acoustic
noise around both arms to see if there are |
|
|
12737
|
Thu Jan 19 08:25:12 2017 |
Steve | Update | SUS | MC1 SUS electronics investigation |
|
|
|
12736
|
Wed Jan 18 18:44:53 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation |
|
|
|
12735
|
Wed Jan 18 15:17:38 2017 |
rana | Update | Computer Scripts / Programs | nodus web apache simlinks too soft | I suppose before directory listings were
turned off we should have fixed the script
to make an index.html, but that's how |
|
|
12734
|
Wed Jan 18 14:23:47 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation | As part of the ongoing |
|
|
12733
|
Wed Jan 18 12:46:47 2017 |
ericq | Update | Computer Scripts / Programs | nodus web apache simlinks too soft |
|
|
|
12732
|
Wed Jan 18 12:34:21 2017 |
ericq | Summary | IOO | MCL / MCF / Calibration |
|
|
|
12731
|
Wed Jan 18 11:40:54 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation | After the repair of the faulty LEMO cable,
I left MC1 with it's watchdog off overnight.
|
|
|
12730
|
Wed Jan 18 10:41:14 2017 |
gautam | Update | General | ETMX suspension electronics problems? | Summary pages show no kicking in the ETMX
watchdogs from midnight to 6 AM (0800 - 1400
UTC): |
|
|
12729
|
Tue Jan 17 21:31:57 2017 |
gautam | Update | General | ETMX suspension electronics problems? | Last
night, I plugged the ETMX suspension coils
back into the satellite box. Tonight, we |
|
|
12728
|
Tue Jan 17 21:29:52 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation |
|
|
|
12727
|
Tue Jan 17 20:47:23 2017 |
rana | Update | CDS | Simulink Webview updated | Seems like this stops working every ~2
years. Its been busted since early 2016 according
to cron, so I fixed up the paths and restored |
|
|
12726
|
Tue Jan 17 20:39:30 2017 |
rana | Update | Computer Scripts / Programs | nodus web apache simlinks too soft | I tried to follow these instructions today
to make the Simulink Webview accessible:
controls@nodus|public_html |
|
|
12725
|
Mon Jan 16 23:25:07 2017 |
gautam | Update | SUS | MC1 SUS electronics investigation | [rana,gautam]
Summary:
|
|
|
12724
|
Mon Jan 16 22:03:30 2017 |
jamie | Configuration | Computers | Megatron update |
|
|
|
12723
|
Mon Jan 16 21:03:47 2017 |
rana | Summary | IOO | MCL / MCF / Calibration | Oot on the streets and in the chat rooms,
people often ask, "What
is up with the MC_F calibration?". |
|
|
12722
|
Mon Jan 16 18:54:01 2017 |
rana | Update | SUS | BS: whitening re-engaged | Found that the BS whitening was off. Gautam
says that "it has always been that way"
and "there's nothing in the elog |
|
|
12721
|
Mon Jan 16 12:49:06 2017 |
rana | Configuration | Computers | Megatron update | The "apt-get update" was failing
on some machines because it couldn't
find the 'Debian squeeze' repos, |
|
|
12720
|
Sat Jan 14 22:39:30 2017 |
rana | Summary | SUS | ITMY is drifting ? | https://nodus.ligo.caltech.edu:30889/detcharsummary/day/20170114/sus/susdrift/
ITMY is not like the others. Real
or just OSEM madness? |
|
|
12719
|
Sat Jan 14 12:36:57 2017 |
ericq | Update | DAQ | minute trends missing | Yes, writing minute trends causes hourly
FB crashes in the current state of things.
The "raw" minute trending is turned |
|
|
12718
|
Sat Jan 14 12:12:03 2017 |
rana | Update | DAQ | minute trends missing | Did we turn off minute trend writing in
one of the recent FrameBuilder debug sessions?
Seems we only have second trends in 2016. |
|
|
12717
|
Sat Jan 14 00:53:05 2017 |
rana | HowTo | DAQ | Get 40m data using NDS2 and Python | Minute trend data seems not available using
the NDS2 server. Its super slow using dataviewer
from the control room. |
|
|
12716
|
Fri Jan 13 23:39:46 2017 |
gautam | Update | General | ETMX suspension electronics problems? | [Koji,gautam]
After Koji's leap second fix,
we were playing around with the X arm locking. |
|
|
12715
|
Fri Jan 13 21:41:23 2017 |
Koji | Update | CDS | DC errors | I think I fixed the DC error issue
1. I added the leap second
(leapsecond ?) entry for 2016/12/31, 23:60:00 |
|
|
12714
|
Fri Jan 13 21:32:49 2017 |
rana | HowTo | DAQ | Get 40m data using NDS2 and Python | The attached file is a python notebook
that you can use to get data. Minimal syntax. |
|
|
12713
|
Fri Jan 13 14:33:00 2017 |
MAX (not Rana) | Update | Summary Pages | December outage | PEM config file was also lacking a section
named "summary", which is necessary
for all parent tabs; this has now been solved. |
|
|
12712
|
Fri Jan 13 14:18:28 2017 |
Steve | Update | PEM | air condition fixed | The old control room AC has been
stick in heating mode for
about 2 months. It's thermostate |
|
|
12711
|
Fri Jan 13 10:53:03 2017 |
Steve | Update | PEM | doors are fixed | Control room to outside door was
realigned.
|
|
|
12710
|
Fri Jan 13 08:54:32 2017 |
Johannes | Update | General | DC PD installed | I installed a DC PD (Thorlabs PDA 520)
in the beam path to AS55. I placed a 2" |
|
|
12709
|
Thu Jan 12 23:22:34 2017 |
rana | Update | Summary Pages | December outage | Pages still not working: PEM and MEDM blank.
Committed existing MEDM
grabbing scripts to SVN. Ran the cron job |
|