| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16333
|
Wed Sep 15 23:38:32 2021 |
Koji | Update | ALS | ALS ASX PZT HV was off -> restored | It was known that the Y end ALS PZTs are
not working. But Anchal reported in the meeting
that the X end PZTs are not working too. |
|
|
16332
|
Wed Sep 15 11:27:50 2021 |
Yehonathan | Update | CDS | c1auxey assembly | {Yehonathan, Paco}
We turned off the ETMX watchdogs
and OpLevs. We went to the X end and shut |
|
|
16331
|
Tue Sep 14 19:12:03 2021 |
Koji | Summary | PEM | Excess seismic noise in 0.1 - 0.3 Hz band | Looks like this increase is correlated
for BS/EX/EY. So it is likely to be real.
Comparison between 9/15 |
|
|
16330
|
Tue Sep 14 17:22:21 2021 |
Anchal | Update | CDS | Added temp sensor channels to DAQ list | [Tega, Paco, Anchal]
We attempted to reboot fb1 daqd
today to get the new temperature sensor channels |
|
|
16329
|
Tue Sep 14 17:19:38 2021 |
Paco | Summary | PEM | Excess seismic noise in 0.1 - 0.3 Hz band | For the past couple of days the 0.1 to
0.3 Hz RMS seismic noise along BS-X has increased.
Attachment 1 shows the hour trend in the |
|
|
16328
|
Tue Sep 14 17:14:46 2021 |
Koji | Update | SUS | SOS Tower Hardware | Yup this is OK. No problem.
|
|
|
16327
|
Tue Sep 14 16:44:54 2021 |
jamie | Frogs | CDS | fb1 /var full after reboot, caused all sorts of problems | Jonathan Hanks pointed me to this fix to
the gpstime kernel module that was unfortunately
put in after the 3.4 release that we're |
|
|
16326
|
Tue Sep 14 16:12:03 2021 |
Jordan | Update | SUS | SOS Tower Hardware | Yehonathan noticed today that the silver
plated hardware on the assembled SOS towers
had some pretty severe discoloration on it. |
|
|
16325
|
Tue Sep 14 15:57:05 2021 |
jamie | Frogs | CDS | fb1 /var full after reboot, caused all sorts of problems | /var on fb1 filled up today, which caused
all sorts of CDS issues. I found out
about the problem by reading the logs of |
|
|
16324
|
Mon Sep 13 18:19:25 2021 |
Tega | Update | Computer Scripts / Programs | Moved modbus service from chiara to c1susaux | [Tega, Anchal, Paco]
After talking to Anchal, it was
made clear that chiara is not the place to |
|
|
16323
|
Mon Sep 13 17:05:04 2021 |
Tega | Summary | PEM | Infrasensing temperature sensor modbus configuration | Anchal mentioned it would be good to put
more details about how I arrived at the values
needed to configure the modbus drive for |
|
|
16322
|
Mon Sep 13 15:14:36 2021 |
Anchal | Update | LSC | Xend Green laser injection mirrors M1 and M2 not responsive | I was showing some green laser locking
to Tega, I noticed that changing the PZT
sliders of M1/M2 angular position on Xend |
|
|
16321
|
Mon Sep 13 14:32:25 2021 |
Yehonathan | Update | CDS | c1auxey assembly | So we agreed that the RTNs points on the
c1auxex Acromag chassis should just be grounded
to the local Acromag ground as it just needs |
|
|
16320
|
Mon Sep 13 09:15:15 2021 |
Paco | Update | LSC | MC unlocked? | Came in at ~ 9 PT this morning to find
the IFO "down". The IMC had lost
its lock ~ 6 hours before, so at about 03:00 |
|
|
16319
|
Mon Sep 13 04:12:01 2021 |
Tega | Update | General | Added temperature sensors at Yend and Vertex too | I finally got the modbus part working on
chiara, so we can now view the temperature
data on any machine on the martian network, |
|
|
16318
|
Thu Sep 9 09:54:41 2021 |
Stephen | Summary | BHD | BHD OMC invacuum wiring - cable lengths | [Koji, Stephen - updated 30 September]
Cable lengths task - in vacuum
cabling for the green section (new, custom |
|
|
16317
|
Wed Sep 8 19:06:14 2021 |
Koji | Update | General | Backup situation | Tega mentioned in the meeting that it could
be safer to separate some of nodus's
functions from the martian file system. |
|
|
16316
|
Wed Sep 8 18:00:01 2021 |
Koji | Update | VAC | cronjobs & N2 pressure alert | In the weekly meeting, Jordan pointed out
that we didn't receive the alert for
the low N2 pressure. |
|
|
16315
|
Tue Sep 7 18:00:54 2021 |
Tega | Summary | Calibration | System Identification via line injection | [paco]
This morning, I spent some time
restoring the jupyter notebook server running |
|
|
16314
|
Fri Sep 3 02:03:15 2021 |
Tega | Summary | Computers | Strip down large error files | Also deleted the ~50GB error files from
ldas to prevent rsync from copying them
to nodus again. With the new update to GWsumm, |
|
|
16313
|
Thu Sep 2 21:49:03 2021 |
Paco | Summary | Computers | chiara down, vac interlock tripped | [tega, paco]
We found the files that took excess
space in the chiara filesystem (see Attachment |
|
|
16312
|
Thu Sep 2 21:21:14 2021 |
Koji | Summary | Computers | Vacuum recovery 2 | Attachment 1:
We are pumping the main volume with
TP2. Once P1a reached the pressure ~2.2mtorr, |
|
|
16311
|
Thu Sep 2 20:47:19 2021 |
Koji | Update | CDS | Chiara DHCP restarted | [Paco, Tega, Koji]
Once chiara's DHCP is back,
things got much more straight forward. |
|
|
16310
|
Thu Sep 2 20:44:18 2021 |
Koji | Update | CDS | Chiara DHCP restarted | We had the issue of the RT machines rebooting.
Once we hooked up the display on c1iscex,
it turned out that the IP was not given at |
|
|
16309
|
Thu Sep 2 19:47:38 2021 |
Koji | Update | CDS | This week's FB1 GPS Timing Issue Solved | After the reboot daqd_dc was not working,
but manual starting of open-mx / mx services
solved the issue. |
|
|
16308
|
Thu Sep 2 19:28:02 2021 |
Koji | Update | | This week's FB1 GPS Timing Issue Solved | After the disk system trouble, we could
not make the RTS running at the nominal state.
A part of the troubleshoot FB1 was rebooted. |
|
|
16307
|
Thu Sep 2 17:53:15 2021 |
Paco | Summary | Computers | chiara down, vac interlock tripped | [paco, koji, tega, ian]
Today in the morning the name server
/ network file system running in chiara failed. |
|
|
16306
|
Wed Sep 1 21:55:14 2021 |
Koji | Summary | General | Towards the end upgrade | - Sat amp
mod and test: on going (Tega)
- Coil driver mod and test: on going |
|
|
16305
|
Wed Sep 1 14:16:21 2021 |
Jordan | Update | VAC | Empty N2 Tanks | The right N2 tank had a bad/loose valve
and did not fully open. This morning the
left tank was just about empty and the right |
|
|
16304
|
Tue Aug 31 14:55:24 2021 |
rana | Summary | LSC | XARM POX OLTF | this model doesn't seem to include
the analog AA, analog AI, digital AA, digital
AI, or data transfer delays in the system. |
|
|
16303
|
Mon Aug 30 17:49:43 2021 |
Paco | Summary | LSC | XARM POX OLTF | Used diaggui to get OLTF in preparation
for optimal system identification / calibration.
The excitation was injected at the control |
|
|
16302
|
Thu Aug 26 10:30:14 2021 |
Jamie | Configuration | CDS | front end time synchronization fixed? | I've been looking at why the front
end NTP time synchronization did not seem
to be working. I think it might not |
|
|
16300
|
Thu Aug 26 10:10:44 2021 |
Paco | Update | CDS | FB is writing the frames with a year old date | [paco, ]
We went over the X end to check
what was going on with the TRX signal. We |
|
|
16299
|
Wed Aug 25 18:20:21 2021 |
Jamie | Update | CDS | GPS time on fb1 fixed, dadq writing correct frames again | I have no idea what happened to the GPS
timing on fb1, but it seems like the issue
was coincident with the power |
|
|
16298
|
Wed Aug 25 17:31:30 2021 |
Paco | Update | CDS | FB is writing the frames with a year old date | [paco, tega, koji]
After invaluable assistance from
Jamie in fixing this yearly offset in the |
|
|
16297
|
Wed Aug 25 11:48:48 2021 |
Yehonathan | Update | CDS | c1auxey assembly | After confirming that, indeed, leaving
the RTN connection floating can cause reliability
issues we decided to make these connections |
|
|
16296
|
Wed Aug 25 08:53:33 2021 |
Jordan | Update | SUS | 2" Adapter Ring for SOS Arrived 8/24/21 | 8 of the 2"->3" adapter rings
(D2100377) arrived from RDL yesterday. I
have not tested the threads but dimensional |
|
|
16295
|
Tue Aug 24 22:37:40 2021 |
Anchal | Update | General | Time synchronization not really working | I attempted to install chrony and run it
on one of the FE machines. It didn't
work and in doing so, I lost the working |
|
|
16294
|
Tue Aug 24 18:44:03 2021 |
Koji | Update | CDS | FB is writing the frames with a year old date | Dan Kozak pointed out that the new frame
files of the 40m has not been written in
2021 GPS time but 2020 GPS time. |
|
|
16293
|
Tue Aug 24 18:11:27 2021 |
Paco | Update | General | Time synchronization not really working | tl;dr: NTP servers and clients
were never synchronized, are not synchronizing
even with ntp... nodus is synchronized but |
|
|
16292
|
Tue Aug 24 09:22:48 2021 |
Anchal | Update | General | Time synchronization working now | Jamie told me to use chroot to log in into
the chroot jail of debian os that are exported
for the FEs and install ntp there. I took |
|
|
16291
|
Mon Aug 23 22:51:44 2021 |
Anchal | Update | General | Time synchronization efforts | Related elog thread: 16286
I didn't really achieve
anything but I'm listing what I've |
|
|
16290
|
Mon Aug 23 19:00:05 2021 |
Koji | Update | General | Campus Wide Power Glitch Reported: Monday, 8/23/21 at 9:30am | Restarting the RTS was unsuccessful because
of the timing discrepancy error between the
RT machines and the FB. This time no matter |
|
|
16289
|
Mon Aug 23 15:25:59 2021 |
Ian MacMillan | Update | CDS | SUS simPlant model | I am adding a State-space block to the
SimPlant cds model using the example Chris
gave. I made a new folder in controls |
|
|
16288
|
Mon Aug 23 11:51:26 2021 |
Koji | Update | General | Campus Wide Power Glitch Reported: Monday, 8/23/21 at 9:30am | Campus
Wide Power Glitch Reported:
Monday, 8/23/21 at 9:30am (more like 9:34am |
|
|
16287
|
Mon Aug 23 10:17:21 2021 |
Paco | Summary | Computers | system reboot glitch | [paco]
At 09:34 PST I noted a glitch in
the controls room as the machines went down |
|
|
16286
|
Fri Aug 20 06:24:18 2021 |
Anchal | Update | CDS | Time synchornization not running | I read on some stack exchange that 'NTP
synchornized' indicator turns 'yes'
in the output of command timedatectl only |
|
|
16285
|
Fri Aug 20 00:28:55 2021 |
Anchal | Update | CDS | Time synchornization not running | I added ntpserver as a known host name
for address 192.168.113.201 (fb1's address
where ntp server is running) in the martian |
|
|
16284
|
Thu Aug 19 14:14:49 2021 |
Koji | Update | CDS | Time synchornization not running | 131.215.239.14 looks like Caltech's
NTP server (ntp-02.caltech.edu)
https://webmagellan.com/explore/caltech.edu/28415b58-837f-4b46-a134-54f4b81bee53 |
|
|
16283
|
Thu Aug 19 03:23:00 2021 |
Anchal | Update | CDS | Time synchornization not running | I tried to read a bit and understand the
NTP synchronization implementation in FE
computers. I'm quite sure that NTP synchronization |
|