| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
16328
|
Tue Sep 14 17:14:46 2021 |
Koji | Update | SUS | SOS Tower Hardware | Yup this is OK. No problem.
|
|
|
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 |
|
|
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 |
|
|
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. |
|
|
16335
|
Thu Sep 16 00:00:20 2021 |
Koji | Update | General | RIO Planex 1064 Lasers in the south cabinet | RIO Planex 1064 Lasers in the south cabinet
Property Number C30684/C30685/C30686/C30687 |
|
|
16336
|
Thu Sep 16 01:16:48 2021 |
Koji | Update | General | Frozen 2 | It happened again. Defrosting required. |
|
|
16337
|
Thu Sep 16 10:07:25 2021 |
Anchal | Update | General | Melting 2 | Put outside.
|
|
|
16338
|
Thu Sep 16 12:06:17 2021 |
Tega | Update | Computer Scripts / Programs | Temperature sensors added to the summary pages | We can now view the minute trend of the
temperature sensors under the PEM tab
of the summary pages. See attachment 1 for |
|
|
16340
|
Thu Sep 16 20:18:13 2021 |
Anchal | Update | General | Reset | Fridge brought back inside.
|
|
|
16341
|
Fri Sep 17 00:56:49 2021 |
Koji | Update | General | Awesome | The
Incredible Melting Man!
|
|
|
16342
|
Fri Sep 17 20:22:55 2021 |
Koji | Update | SUS | EQ M4.3 Long beach | EQ M4.3 @longbeach
2021-09-18 02:58:34 (UTC) / 07:58:34
(PDT) |
|
|
16344
|
Mon Sep 20 14:11:40 2021 |
Koji | Update | BHD | End DAC Adapter Unit D2100647 | I've uploaded the schematic and PCB
PDF for End DAC Adapter Unit D2100647.
Please review the design. |
|
|
16346
|
Mon Sep 20 15:23:08 2021 |
Yehonathan | Update | Computers | Wifi internet fixed | Over the weekend and today, the wifi was
acting bad with frequent disconnections and
no internet access. I tried to log into the |
|
|
16349
|
Mon Sep 20 20:43:38 2021 |
Tega | Update | Electronics | Sat Amp modifications | Running update of Sat Amp modification
work, which involves the following procedure (x8)
per unit: |
|
|
16350
|
Mon Sep 20 21:56:07 2021 |
Koji | Update | Computers | Wifi internet fixed | Ug, factory resets... Caltech IMSS announced
that there was an intermittent network service
due to maintenance between Sept 19 and 20. |
|
|
16356
|
Wed Sep 22 17:22:59 2021 |
Tega | Update | Electronics | Sat Amp modifications | [Koji, Tega]
Decided to do a quick check of |
|
|
16357
|
Thu Sep 23 14:17:44 2021 |
Tega | Update | Electronics | Sat Amp modifications debugging update | Debugging complete.
All units now have the correct
TP4 voltage reading needed to drive a |
|
|
16359
|
Thu Sep 23 18:18:07 2021 |
Yehonathan | Update | BHD | SOS assembly | I have noticed that the dumbells coming
back from C&B had glue residues on them.
An example is shown in attachment 1: it can |
|
|
16364
|
Wed Sep 29 09:36:26 2021 |
Jordan | Update | SUS | 2" Adapter Ring Parts for SOS Arrived 9/28/21 | The remaining machined parts for the SOS
adapter ring have arrived. I will inspect
these today and get them ready for C&B. |
|
|
16368
|
Thu Sep 30 14:13:18 2021 |
Anchal | Update | LSC | HV supply to Xend Green laser injection mirrors M1 and M2 PZT restored | Late elog, original date Sep 15th
We found that the power switch
of HV supply that powers the PZT drivers |
|
|
16370
|
Fri Oct 1 12:12:54 2021 |
Stephen | Update | BHD | ITMY (3002) CAD layout pushed to Box | Koji requested current state of BHD 3D
model. I pushed this to Box after adding
the additional SOSs and creating an EASM |
|
|
16373
|
Mon Oct 4 15:50:31 2021 |
Hang | Update | Calibration | Fisher matrix estimation on XARM parameters | [Anchal, Hang]
What: Anchal and I measured the
XARM OLTF last Thursday. |
|
|
16377
|
Mon Oct 4 18:35:12 2021 |
Paco | Update | Electronics | Satellite amp box adapters | [Paco]
I have finished assembling the
1U adapters from 8 to 5 DB9 conn. for the |
|
|
16378
|
Mon Oct 4 20:46:08 2021 |
Koji | Update | Electronics | Satellite amp box adapters | Thanks. You should be able to find the
chassis-related hardware on the left side
of the benchtop drawers at the middle workbench. |
|
|
16379
|
Mon Oct 4 21:58:17 2021 |
Tega | Update | Electronics | Sat Amp modifications | Trying to finish 2 more Sat Amp units so
that we have the 7 units needed for the X-arm
install. |
|
|
16380
|
Tue Oct 5 17:01:20 2021 |
Koji | Update | Electronics | Sat Amp modifications | Make sure the inputs for the PD amps are
open. This is the current amplifier and we
want to leave the input pins open for the |
|
|
16384
|
Wed Oct 6 15:04:36 2021 |
Hang | Update | SUS | PRM L2P TF measurement & Fisher matrix analysis | [Paco, Hang]
Yesterday afternoon Paco and I
measured the PRM L2P transfer function. |
|
|
16386
|
Wed Oct 6 16:31:02 2021 |
Tega | Update | Electronics | Sat Amp modifications | [Tega, Koji]
(S2100737) - Debugging showed
that the opamp, AD822ARZ, for PD2 circuit |
|
|
16387
|
Thu Oct 7 02:04:19 2021 |
Koji | Update | Electronics | Satellite amp adapter chassis | The 4 units of Satellite Amp Adapter were
done:
- The ears were fixed with the screws |
|
|
16388
|
Fri Oct 8 17:33:13 2021 |
Hang | Update | SUS | More PRM L2P measurements | [Raj, Hang]
We did some more measurements on
the PRM L2P TF. |
|
|
16389
|
Mon Oct 11 11:13:04 2021 |
rana | Update | SUS | More PRM L2P measurements | For the oplev, there are DQ channels you
can use so that its possible to look back
in the past for long measurements. They have |
|
|
16390
|
Mon Oct 11 13:59:47 2021 |
Hang | Update | SUS | More PRM L2P measurements | We report here the analysis results for
the measurements done in elog:16388. |
|
|
16399
|
Wed Oct 13 15:36:38 2021 |
Hang | Update | Calibration | XARM OLTF | We did a few quick XARM oltf measurements.
We excited C1:LSC-ETMX_EXC with a broadband
white noise upto 4 kHz. The timestamps for |
|
|
16400
|
Thu Oct 14 09:28:46 2021 |
Yehonathan | Update | PSL | PMC unlocked | PMC has been unlocked since ~ 2:30 AM.
Seems like the PZT got saturated. I moved
the DC output adjuster and the PMC locked |
|
|
16401
|
Thu Oct 14 11:25:49 2021 |
Yehonathan | Update | PSL | PMC unlocked | {Yehonathan, Anchal}
I went to get a sandwich around
10:20 AM and when I came back BS was moving |
|
|
16403
|
Thu Oct 14 16:38:26 2021 |
Ian MacMillan | Update | General | Kicking optics in freeSwing measurment | [Ian, Anchal]
We are going to kick the optics
tonight at 2am. |
|
|
16405
|
Thu Oct 14 20:16:22 2021 |
Yehonathan | Update | General | PRMI free swinging | {Yehonathan, Raj}
We aligned the IFO in the PRMI
state and let it swing freely. |
|
|
16406
|
Fri Oct 15 12:14:27 2021 |
Ian MacMillan | Update | General | Kicking optics in freeSwing measurment | [Ian, Anchal]
we ran the free swinging test last
night and the results match up with in 1/10th |
|
|
16410
|
Mon Oct 18 10:02:17 2021 |
Koji | Update | VAC | Vent Started / Completed | [Chub, Jordan, Anchal, Koji]
- Checked the main volume is isolated.
- TP1 and TP2 were made isolated from |
|
|
16411
|
Mon Oct 18 16:48:32 2021 |
Tega | Update | Electronics | Sat Amp modifications | [S2100738, S2100745, S2100751] Completed
three more Sat Amp units modification with
seven remaining. |
|
|
16412
|
Tue Oct 19 10:59:09 2021 |
Koji | Update | VAC | Vent Started / Completed | [Chub, Jordan, Yehonathan, Anchal,
Koji]
North door of the BS chamber opened |
|
|
16413
|
Tue Oct 19 11:30:39 2021 |
Koji | Update | VAC | How to vent TP1 | I learned that TP1 was vented through the
RGA room in the past. This can be done by
opening VM2 and a manual valve ("needle |
|
|
16418
|
Wed Oct 20 15:58:27 2021 |
Koji | Update | VAC | How to vent TP1 | Probably the hard disk of c0rga is dead.
I'll follow up in this elog later today.
Looking at the log in /opt/rtcds/caltech/c1/scripts/RGA/logs |
|
|
16419
|
Thu Oct 21 11:38:43 2021 |
Jordan | Update | SUS | Standoffs for Side Magnet on 3" Adapter Ring SOS Assembly | I had 8 standoffs made at the Caltech chemistry
machine shop to be used as spacers for the
side magnets on the 3" Ring assembly. |
|
|
16426
|
Tue Oct 26 10:17:14 2021 |
Yehonathan | Update | BHD | SOS assembly | Things that I need to start suspending
optics:
1. Winch adapter plate (D970314). |
|
|
16428
|
Tue Oct 26 14:53:24 2021 |
Koji | Update | Electronics | Rack | 1. We have a rack at the 40m storage. We
are free to take it to the lab. If there
is a tag, tell the info to Liz. Let's |
|
|
16439
|
Thu Oct 28 23:13:19 2021 |
Yehonathan | Update | BHD | SOS assembly | {Tega, Yehonathan, Koji}
Suspension |
|
|
16442
|
Mon Nov 1 14:51:34 2021 |
Koji | Update | General | Checking the vent plan | The vent team described
a detailed vent plan (and reports where the
actions have been performed) |
|
|
16443
|
Tue Nov 2 15:02:03 2021 |
Yehonathan | Update | BHD | SOS assembly | {Yehonathan, Tega}
We took the free-swinging spectra
of the OpLev in the X and Y direction. |
|
|
16445
|
Tue Nov 2 18:54:41 2021 |
Anchal, Paco | Update | BHD | Optical fibres laid for BHD upgrade | We successfully laid down all required
optical fibre fiber cables from 1X4-1X7
region to 1Y1-1Y3 region today. This includes |
|