| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
8098
|
Mon Feb 18 11:54:15 2013 |
Max Horton | Update | Summary Pages | Timing Issues and Calendars | Crontab: The bug of data only plotting
until 5PM is being investigated. The
crontab's final call to the summary page |
|
|
8100
|
Mon Feb 18 21:43:05 2013 |
Koji | Update | Alignment | POP path set up but AS55 is broken | I undertook the investigation of the AS55
PD.
I found the PD is not broken. |
|
|
8101
|
Mon Feb 18 23:41:15 2013 |
Sendhil | Update | Alignment | Aligned IPPOS, IPANG and OPLEVS | [Yuta, Sendhil]
We aligned IPPOS, IPANG and all OPLEVs
(except for ETMX and SRM). |
|
|
8102
|
Tue Feb 19 00:21:09 2013 |
yuta | Update | Electronics | POP path set up but AS55 is broken | Hmm......
I thought AS55 is broken because it
was not responding to the AS beam nor flashlight |
|
|
8104
|
Tue Feb 19 05:42:28 2013 |
Koji | Update | Electronics | POP path set up but AS55 is broken | 10010 Ohm for POP55 vs 50 Ohm for AS55
(cf. http://nodus.ligo.caltech.edu:8080/40m/4763)
I |
|
|
8105
|
Tue Feb 19 08:06:02 2013 |
yuta | Update | Electronics | POP path set up but AS55 is broken | I didn't use LED flash light. We learned
from the past (elog
#7355). I checked that POP55 and REFL55/165/33/11 |
|
|
8106
|
Tue Feb 19 08:42:31 2013 |
Koji | Update | VAC | ETMX door open | [Steve, Yuta, Koji]
The ETMX heavy door was removed. |
|
|
8107
|
Tue Feb 19 09:37:23 2013 |
Steve | Update | IOO | low MC1 OSEM voltage |
See TT DB25 pin swapping
elog#7869 |
|
|
8108
|
Tue Feb 19 12:02:00 2013 |
Jamie | Update | IOO | IMC table levelling. | In order to address the issue of low MC1
OSEM voltages, Yuta and I looked at the IMC
table levelling. Looking with the bubble |
|
|
8109
|
Tue Feb 19 15:10:02 2013 |
Jamie | Update | CDS | c1iscex alive again | c1iscex is back up. It is communicating
with it's IO chassis, and all of it's models
(c1x01, c1scx, c1spx) are running again. |
|
|
8110
|
Tue Feb 19 15:40:34 2013 |
Charles | Update | ISS | ISS Prototype | After spending a good deal of time learning
how to use the SR785, I was able to characterize
my prototype circuit. The transfer function |
|
|
8111
|
Tue Feb 19 17:14:56 2013 |
Chloe | Update | | QPD Circuit | I finished working out the circuit and
figured out where the broken connections
were. This is diagrammed in my notebook (will |
|
|
8112
|
Tue Feb 19 19:55:52 2013 |
yuta | Update | IOO | MC yaw input tuned | [Jenne, Manasa, Yuta]
Since we levelled IMC stack, we had |
|
|
8113
|
Wed Feb 20 01:40:37 2013 |
Manasa | Update | Alignment | Final IFO alignment- in progress | [Yuta, Sendhil, Jamie, Jenne, Rana]
1. After the MC centering, we tried |
|
|
8114
|
Wed Feb 20 03:13:10 2013 |
yuta | Update | Alignment | clipping centering checklist | I attached clipping/centering checklist
for the alignment.
Blue |
|
|
8115
|
Wed Feb 20 10:13:41 2013 |
yuta | Update | Alignment | PRC flashing brighter than last week | After in-vac alignment work last night,
PRC is flashing brighter than PRMI alignment
last week. |
|
|
8116
|
Wed Feb 20 18:35:42 2013 |
Jenne | Update | Alignment | New in-vac alignment procedure | I have updated the vacuum checklist for
in vacuum alignment. Please take a
look (https://wiki-40m.ligo.caltech.edu/vent/checklist) |
|
|
8117
|
Wed Feb 20 18:53:48 2013 |
Jenne | Update | Alignment | IFO ready for doors, then pumping | [Yuta, Manasa, Sendhil, Jenne, Steve, Jamie,
Koji, Evan]
|
|
|
8118
|
Wed Feb 20 19:20:50 2013 |
Evan | Update | Alignment | AS camera alignment | [Manasa, Evan]
Manasa and I are trying to get the
AS beam onto the AS camera with a focusing |
|
|
8119
|
Wed Feb 20 19:48:16 2013 |
yuta | Update | Alignment | BS table oplev re-arranged | [Sendhil, Yuta]
After aligning IFO and putting the |
|
|
8120
|
Wed Feb 20 19:58:59 2013 |
rana | Update | Alignment | BS table oplev re-arranged | Please confirm the SRM OL beam is not too
bad and also find where the mis-aligned SRM
puts its beam. WE want to be sure that there |
|
|
8121
|
Wed Feb 20 20:15:29 2013 |
yuta | Update | Alignment | SRM oplev status | Currently, SRM is misaligned in pitch so
that SRM reflected beam hits on the top edge
of SR3 (not on the mirror, but on the cage |
|
|
8122
|
Wed Feb 20 20:58:37 2013 |
yuta | Update | Alignment | clipping centering checklist | Blue
ones are the ones we checked yesterday.
Green |
|
|
8123
|
Wed Feb 20 21:12:37 2013 |
rana | Update | Alignment | clipping centering checklist |
Is the beam going towards the
OMC going to cause backscatter because of |
|
|
8124
|
Wed Feb 20 21:56:08 2013 |
yuta | Update | Alignment | clipping centering checklist | I'm not sure about the OMC situation at
40m. I think there are no direct beam reflected
back into IFO from OMC path. There must be |
|
|
8126
|
Thu Feb 21 12:56:38 2013 |
Jenne | Update | CDS | c1iscex dead again | c1iscex is dead again. Red lights,
no "breathing" on the FE status
screen. |
|
|
8127
|
Thu Feb 21 13:34:35 2013 |
Jenne | Update | Treasure | IR card removed |
|
|
|
8128
|
Thu Feb 21 14:32:02 2013 |
Jamie | Update | CDS | c1iscex models restarted |
|
|
|
8129
|
Thu Feb 21 15:21:07 2013 |
yuta | Update | VAC | all heavy doors on, started pumping down annulus | [Steve, Manasa, Jenne, Sendhil, Evan,
Yuta]
|
|
|
8130
|
Thu Feb 21 16:53:37 2013 |
Manasa | Update | PSL | PSL shutter | [Steve, Jenne, Yuta, Manasa]
We have kept the laser ON at low
power through the pump down process. As we |
|
|
8131
|
Thu Feb 21 18:01:27 2013 |
Steve | Update | VAC | pumpdown at 230 Torr |
We are pumping down with RP1
& RP3 oily roughing pumps at 3 Torr/min |
|
|
8132
|
Thu Feb 21 18:10:13 2013 |
rana | Update | SEI | Pump Down misalignments | This plot shows the trend of the OL during
the past several hours of roughing pumping.
The big steps at the start of the |
|
|
8133
|
Thu Feb 21 19:55:02 2013 |
Manasa | Update | Locking | Green locking in arms | [Yuta, Manasa]
We have |
|
|
8134
|
Thu Feb 21 21:12:42 2013 |
Koji | Update | VAC | pumpdown at 230 Torr | [Rana, Yuta, Koji]
21:05 at the pressure of 10torr
V3 closed. RV1 manually closed. RPs |
|
|
8135
|
Fri Feb 22 08:01:25 2013 |
Steve | Update | VAC | pumpdown continuous |
Pump
down is restarted after 10.5 hrs stop overnight. |
|
|
8136
|
Fri Feb 22 11:12:16 2013 |
Steve | Update | VAC | pumpdown completed | IFO P1 pressure is 1
mTorr. It is ready for high power light.
The Maglev took over the pumping |
|
|
8137
|
Fri Feb 22 13:03:49 2013 |
Manasa | Update | | MC REFL PD murder |
[Yuta, Manasa]
We turned IFO power back to 1.25W |
|
|
8138
|
Fri Feb 22 17:33:25 2013 |
Manasa | Update | Electronics | MC REFL PD back from the dead |
[Yuta, Manasa]
We replaced the dead photodiode on |
|
|
8139
|
Fri Feb 22 17:33:38 2013 |
Chloe | Update | | QPD circuit diagram | Today I tested the circuitry within the
QPD to make sure I had put it back together
correctly. The output was able to detect |
|
|
8140
|
Fri Feb 22 20:28:17 2013 |
Jamie | Update | Computers | linux1 dead, then undead | At around 2:30pm today something brought
down most of the martian network. All
control room workstations, nodus, etc. were |
|
|
8141
|
Sat Feb 23 00:34:28 2013 |
yuta | Update | Computers | crontab in op340m deleted and restored (maybe) | I
accidentally overwrote crontab in op340m
with an empty file. |
|
|
8143
|
Sat Feb 23 07:14:58 2013 |
yuta | Update | LSC | can't lock Y arm | I tried to align and lock Y arm for the
first time after pumping.
But I couldn't lock Y arm for more |
|
|
8144
|
Sat Feb 23 14:04:07 2013 |
Koji | Update | Computers | apache retarted (Re: linux1 dead, then undead) | apache has been restarted.
How to: search "apache"
on the 40m wiki |
|
|
8145
|
Sat Feb 23 14:52:03 2013 |
Jenne | Update | LSC | ETMYT camera back to normal |
|
|
|
8146
|
Sat Feb 23 15:26:26 2013 |
yuta | Update | Computers | crontab in op340m updated | I found some daily cron jobs for op340m
I missed last night. Also, I edited timings
of hourly jobs to maintain consistency with |
|
|
8147
|
Sat Feb 23 15:46:16 2013 |
rana | Update | Computers | crontab in op340m updated | According to Google, you can add
a line in the crontab to backup the crontab
by having the cronback.py script be in the |
|
|
8148
|
Sat Feb 23 16:16:11 2013 |
Max Horton | Update | Summary Pages | Multiprocessing | Calendars: The calendar issue
discussed previously (http://nodus.ligo.caltech.edu:8080/40m/8098)
where the numbers are squished together |
|
|
8149
|
Sat Feb 23 16:54:24 2013 |
Jenne | Update | LSC | can't lock Y arm | I'm not sure that Yuta had found the real
Yarm flashes last night. When I came
in today, the Yarm would flash. However |
|
|
8150
|
Sat Feb 23 17:14:59 2013 |
yuta | Update | LSC | can't lock Y arm | Jenne found that;
0. If all mirrors are "aligned,"
Yarm flashes. |
|
|
8152
|
Sun Feb 24 00:14:28 2013 |
Manasa | Update | SUS | SUS Summary | I tried to fix the alarms for sensors on
the SUS summary screen. I checked earlier
elogs and found the setSensors.py script. |
|