| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
12971
|
Thu May 4 09:52:43 2017 |
rana | Configuration | Computers | catastrophic multiple monitor failures | That's a new failure mode. Probably
we can't trust the power to be safe anymore.
Need Steve to order a couple |
|
|
12978
|
Tue May 9 15:23:12 2017 |
Steve | Configuration | Computers | catastrophic multiple monitor failures | Gautam and Steve,
Surge
protective power strip was install on |
|
|
12993
|
Mon May 15 20:43:25 2017 |
rana | Configuration | Computers | catastrophic multiple monitor failures | this is not the right one; this Ethernet
controlled strip we want in the racks for
remote control. |
|
|
13009
|
Tue May 23 18:09:18 2017 |
Kaustubh | Configuration | General | Testing ET-3010 PD | In continuation with the previous(ET-3040
PD) test.
The ET-3010 PD requires to be fiber |
|
|
13070
|
Fri Jun 16 18:21:40 2017 |
jigyasa | Configuration | Cameras | GigE camera IP | One of the additional GigE cameras has been
IP configured for use and installation.
Static IP assigned to the camera- |
|
|
13160
|
Wed Aug 2 15:04:15 2017 |
gautam | Configuration | Computers | control room workstation power distribution | The 4 control room workstation CPUs (Rossa,
Pianosa, Donatella and Allegra) are now connected
to the UPS. |
|
|
13440
|
Tue Nov 21 17:51:01 2017 |
Koji | Configuration | Computers | nodus post OS migration admin | The post OS migration admin for nodusa
bout apache, elogd, svn, iptables, etc can
be found in https://wiki-40m.ligo.caltech.edu/NodusUpgradeNov2017 |
|
|
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 |
|
|
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 |
|
|
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.
|
|
|
13504
|
Fri Jan 5 17:50:47 2018 |
rana | Configuration | Computers | motif on nodus | I had to do 'sudo yum install motif'
on nodus so that we could get libXm.so.4
so that we could run MEDM. Works now. |
|
|
13505
|
Fri Jan 5 19:19:25 2018 |
rana | Configuration | SEI | Barry Controls 'air puck' instead of 'VOPO style' breadboard | We've been thinking about putting in
a blade spring / wire based aluminum breadboard
on top of the ETM & ITM stacks to get |
|
|
13524
|
Wed Jan 10 14:17:57 2018 |
johannes | Configuration | Computer Scripts / Programs | autoburt no longer making backups | I was looking into setting up autoburt
for the new c1auxex2 and found that it stopped
making automatic backups for all machines |
|
|
13525
|
Wed Jan 10 15:25:43 2018 |
johannes | Configuration | Computer Scripts / Programs | autoburt making backups again |
Quote:
|
|
|
13526
|
Wed Jan 10 16:27:02 2018 |
Steve | Configuration | SEI | load cell for weight measurement | We could use similar
load cells to make the actual
weight measurement on the Stacis legs. This |
|
|
13539
|
Fri Jan 12 12:31:04 2018 |
gautam | Configuration | Computers | sendmail troubles on nodus | I'm having trouble getting the sendmail
service going on nodus since the Christmas
day power failure - for some reason, it |
|
|
13540
|
Fri Jan 12 16:01:27 2018 |
Koji | Configuration | Computers | sendmail troubles on nodus | I personally don't like the idea of
having sendmail (or something similar
like postfix) on a personal server as it |
|
|
13542
|
Fri Jan 12 18:22:09 2018 |
gautam | Configuration | Computers | sendmail troubles on nodus | Okay I will port awade's python mailer
stuff for this purpose.
|
|
|
13545
|
Sat Jan 13 02:36:51 2018 |
rana | Configuration | Computers | sendmail troubles on nodus | I think sendmail is required on nodus since
that's how the dokuwiki works. That's
why the dokuwiki was trying to send an email |
|
|
13546
|
Sat Jan 13 03:20:55 2018 |
Koji | Configuration | Computers | sendmail troubles on nodus | I know it, and I don't like it. DokuWiki
seems to allow us to use an external server
for notification emails. That would be the |
|
|
13555
|
Wed Jan 17 23:36:12 2018 |
johannes | Configuration | General | AS port laser injection | Status of the AS-port auxiliary laser injection
Auxiliary laser with AOM
setup exists, first order diffracted beam |
|
|
13570
|
Tue Jan 23 16:02:05 2018 |
Steve | Configuration | SEI | load cells | 1500 and 2000 lbs load cells arrived from
MIT to measure the vertical loads on each
leg. |
|
|
13681
|
Tue Mar 13 20:03:16 2018 |
johannes | Configuration | Computers | c1auxex replacement | I assembled the rack-mount server that
will long-term replace c1auxex, so we can
return the borrowed unit to Larry. |
|
|
13682
|
Wed Mar 14 23:58:30 2018 |
johannes | Configuration | Computers | c1auxex replacement | I replaced the borrowed server with the
permanent one today. Before Removing the
current server, Before, I performed several |
|
|
13687
|
Mon Mar 19 14:39:09 2018 |
johannes | Configuration | Computers | c1auxex replacement | [gautam, johannes]
The temperature control output
channel for the XEND seismometer wasn't |
|
|
13742
|
Mon Apr 9 23:28:49 2018 |
johannes | Configuration | DAQ | c1psl channel list | I made a list of all the physical c1psl
channels to get a better idea for how many
acromags we need to replace it eventually. |
|
|
13761
|
Wed Apr 18 17:15:35 2018 |
rana | Configuration | Computers | NODUS: no xmgrace for dataviewer | Turns
out, there is no RPM for XmGrace on Scientific
Linux 7. Since this is the graphic output |
|
|
13764
|
Wed Apr 18 22:46:23 2018 |
johannes | Configuration | General | AS port laser injection | Using Gautam's Finesse file and the
cad files for the 40m optical setup I propagated
the arm mode out of the AS port. For the |
|
|
13766
|
Thu Apr 19 01:04:00 2018 |
gautam | Configuration | General | AS port laser injection | For the arm cavity ringdowns, I guess we
don't need AS55/AS110 (although I think
the camera will still be useful for alignment). |
|
|
13772
|
Thu Apr 19 20:41:09 2018 |
Koji | Configuration | General | Aux Laser LD dying? (AS port laser injection) | I suspect
that the LD of the aux laser is dying.
- The max power we obtain from this |
|
|
13781
|
Tue Apr 24 08:36:47 2018 |
johannes | Configuration | General | Aux Laser LD dying? (AS port laser injection) | In September
2017 I measured ~150mW output power,
which was already kind of low. What are the |
|
|
13784
|
Tue Apr 24 11:31:59 2018 |
gautam | Configuration | ALS | Proposed changes to EX fiber coupling | Motivation:
I want to make another measurement of the |
|
|
13786
|
Tue Apr 24 18:54:15 2018 |
gautam | Configuration | ALS | Proposed changes to EX fiber coupling | I started working on the EX table. Work
is ongoing so I will finish this up later
in the evening, but in case anyone is wondering |
|
|
13789
|
Wed Apr 25 19:09:37 2018 |
gautam | Configuration | ALS | New look EX Fiber coupling | Summary:
I implemented most of the things
outlined in my previous elog. |
|
|
13791
|
Thu Apr 26 11:24:50 2018 |
gautam | Configuration | ALS | New look EX Fiber coupling - pol stability | Here is a first look at the overnight stability.
For the temperature, I used the calibration
I found in the old psl database file, seems |
|
|
13792
|
Thu Apr 26 18:58:21 2018 |
Bruce | Configuration | ALS | New look EX Fiber coupling - pol stability | |
|
|
13796
|
Fri Apr 27 01:36:02 2018 |
gautam | Configuration | ALS | IR ALS noise performance | Summary:
My goal was to do some further
characterization of the IR ALS system tonight. |
|
|
13802
|
Tue May 1 08:04:13 2018 |
Jon Richardson | Configuration | Electronics | PSL-Aux. Laser Phase-Locked Loop | [Jon, Gautam, Johannes]
Summary: In
support of making a proof-of-concept RF measurement |
|
|
13807
|
Wed May 2 21:39:33 2018 |
gautam | Configuration | ALS | IR ALS for EY | The new K6XS mounts I ordered have arrived.
I want to install one of them at the Y-end.
I can't find a picture of the current |
|
|
13810
|
Thu May 3 10:40:43 2018 |
johannes | Configuration | General | AS port laser injection | Instead of trying to couple the fiber output
into the interferometer, I'm doing the
reverse and maximize the amount of interferometer |
|
|
13811
|
Thu May 3 12:10:12 2018 |
gautam | Configuration | General | AS port laser injection | I think we need AS55 for locking the configuration
Jon suggested - AS55 I and Q were used to
lock the SRMI previously, and so I'd |
|
|
13813
|
Thu May 3 20:29:39 2018 |
gautam | Configuration | Electronics | PSL-Aux. Laser Phase-Locked Loop | Some notes about the setup and work at
the PSL table today, Jon can add to / correct
me. |
|
|
13814
|
Fri May 4 13:24:56 2018 |
Jon Richardson | Configuration | Electronics | AUX-PSL PLL Implementation & Characterization | Attached are final details of the phase-locked
loop (PLL) implementation we'll
use for slaving the AUX 700 mW NPRO laser |
|
|
13816
|
Fri May 4 19:06:28 2018 |
rana | Configuration | Electronics | AUX-PSL PLL Implementation & Characterization | this doesn't make much sense to me;
the phase to frequency conversion (mixer-demod
to PZT ) should give us a 1/f loop as Johannes |
|
|
13817
|
Fri May 4 21:17:57 2018 |
gautam | Configuration | ALS | BeathMouth pulled out of PSL table | I have been puzzled about the beat note
level we get out of the BeatMouth for some
time. |
|
|
13824
|
Tue May 8 00:40:51 2018 |
gautam | Configuration | ALS | BeathMouth pulled out of PSL table | Summary:
I did some more BeatMouth characterization.
My primary objective was to do a power budget. |
|
|
13845
|
Tue May 15 20:51:27 2018 |
gautam | Configuration | Electronics | Making PLL setup more permanent | [jon, steve, gautam]
Some points which Jon will elaborate |
|
|
13848
|
Wed May 16 18:52:50 2018 |
gautam | Configuration | Electronics | PLL mysteries solved | [Koji,
Gautam]
Summary: |
|
|
13858
|
Thu May 17 13:51:35 2018 |
Jon Richardson | Configuration | Electronics | Documentation & Schematics for AUX-PSL PLL | [Jon, Gautam]
Attached is supporting documentation
for the AUX-PSL PLL electronics installed |
|