| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
16282
|
Wed Aug 18 20:30:12 2021 |
Anchal | Update | ASS | Fixed runASS scripts | Late elog:
Original time of work Tue Aug 17 20:30 2021
I locked the arms yesterday |
|
|
16281
|
Tue Aug 17 04:30:35 2021 |
Koji | Update | SUS | New electronics | Received:
Aug 17, 2021 2x ISC Whitening
Delivered 2x Sat Amp board to Todd |
|
|
16280
|
Mon Aug 16 23:30:34 2021 |
Paco | Update | CDS | AS WFS commissioning; restarting models | [koji, ian, tega, paco]
With the remote/local assistance
of Tega/Ian last friday I made changes on |
|
|
16279
|
Thu Aug 12 20:52:04 2021 |
Koji | Update | General | PSL shutter was closed this morning | I did a bit more investigation on this.
- I checked P1~P4, PTP2/3, N2,
TP2, TP3. But found only P1a and P2 were |
|
|
16278
|
Thu Aug 12 14:59:25 2021 |
Koji | Update | General | PSL shutter was closed this morning | What I was afraid of was the vacuum interlock.
And indeed there was a pressure surge this
morning. Is this real? Why didn't we |
|
|
16277
|
Thu Aug 12 11:04:27 2021 |
Paco | Update | General | PSL shutter was closed this morning | Thu Aug 12 11:04:42 2021 Arrived to find
the PSL shutter closed. Why? Who? When? How?
No elog, no fun. I opened it, IMC is now |
|
|
16276
|
Wed Aug 11 12:06:40 2021 |
Yehonathan | Update | CDS | Opto-isolator for c1auxey | I redid the differential input experiment
using the DS360 function generator we recently
got. I generated a low frequency (0.1Hz) |
|
|
16275
|
Wed Aug 11 11:35:36 2021 |
Paco | Update | LSC | PRMI MICH orthogonality plan | [yehonathan, paco]
Yesterday we discussed a bit about
working on the PRMI sensing matrix. |
|
|
16274
|
Tue Aug 10 17:24:26 2021 |
paco | Update | General | Five day trend | Attachment 1 shows a five and a half day
minute-trend of the three temperature sensors.
Logging started last Thursday ~ 2 pm when |
|
|
16273
|
Mon Aug 9 10:38:48 2021 |
Anchal | Update | BHD | c1teststand subnetwork now accessible remotely | I had to add following two lines in the
/etc/network/interface file to make the special
ip routes persistent even after reboot: |
|
|
16272
|
Fri Aug 6 17:10:19 2021 |
Paco | Update | IMC | MC rollercoaster | [anchal, yehonatan, paco]
For whatever reason (i.e. we don't
really know) the MC unlocked into a weird |
|
|
16271
|
Fri Aug 6 13:13:28 2021 |
Anchal | Update | BHD | c1teststand subnetwork now accessible remotely | c1teststand subnetwork is now accessible
remotely. To log into this network, one needs
to do following: |
|
|
16270
|
Thu Aug 5 14:59:31 2021 |
Anchal | Update | General | Added temperature sensors at Yend and Vertex too | I've added the other two temperature
sensor modules on Y end (on 1Y4, IP: 192.168.113.241)
and in the vertex on (1X2, IP: 192.168.113.242). |
|
|
16269
|
Wed Aug 4 18:19:26 2021 |
paco | Update | General | Added infrasensing temperature unit to martian network | [ian, anchal, paco]
We hooked up the infrasensing unit
to power and changed its default IP address |
|
|
16268
|
Tue Aug 3 20:20:08 2021 |
Anchal | Update | Optical Levers | Recentered ETMX, ITMX and ETMY oplevs at good state | Late elog. Original time 08/02/2021 21:00.
I locked both arms and ran ASS
to reach to optimum alignment. ETMY PIT > |
|
|
16267
|
Mon Aug 2 16:18:23 2021 |
Paco | Update | ASC | AS WFS MICH commissioning | [anchal, paco]
We picked up AS WFS comissioning
for daytime work as suggested by gautam. |
|
|
16266
|
Thu Jul 29 14:51:39 2021 |
Paco | Update | Optical Levers | Recenter OpLevs | [yehonathan, anchal, paco]
Yesterday around 9:30 pm, we centered
the BS, ITMY, ETMY, ITMX and ETMX oplevs |
|
|
16265
|
Wed Jul 28 20:20:09 2021 |
Yehonathan | Update | General | The temperature sensors and function generator have arrived in the lab | I put the temperature sensors box on Anchal's
table (attachment 1) and the function generator
on the table in front of the c1auxey Acromag |
|
|
16264
|
Wed Jul 28 17:10:24 2021 |
Anchal | Update | LSC | Schnupp asymmetry | [Anchal, Paco]
I redid the measurement of Schnupp
asymmetry today and found it to be 3.8 cm |
|
|
16263
|
Wed Jul 28 12:47:52 2021 |
Yehonathan | Update | CDS | Opto-isolator for c1auxey | To simulate a differential output I used
two power supplies connected in series. The
outer connectors were used as the outputs |
|
|
16262
|
Wed Jul 28 12:00:35 2021 |
Yehonathan | Update | BHD | SOS assembly | After receiving two new tubes of EP-30
I resumed the gluing activities. I made a
spreadsheet |
|
|
16261
|
Tue Jul 27 23:04:37 2021 |
Anchal | Update | LSC | 40 meter party | [ian, anchal, paco]
After our second attempt of locking
PRFPMI tonight, we tried to resotre XARM |
|