| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
6715
|
Wed May 30 15:51:22 2012 |
yuta | Update | IOO | MC beam spot oscillation | [Koji, Suresh, Jenne, Yuta]
Background:
We noticed that the beam spots |
|
|
6714
|
Wed May 30 13:24:08 2012 |
Jenne | Update | Locking | Yarm error spectra |
|
|
|
6713
|
Wed May 30 01:35:15 2012 |
yuta | Update | Green Locking | aligned Y arm green beam | [Jenne, Yuta]
We aligned the Y arm for IR (C1:LSC-TRY_OUT
is now ~ 0.9), and aligned the green beam |
|
|
6712
|
Tue May 29 22:48:37 2012 |
Den | Update | PEM | Guralp noise | I've checked whether the Guralp noise that
we see comes not from seismometer but from
ADC or readout box. I did 2 separate measurements |
|
|
6711
|
Tue May 29 21:50:21 2012 |
Jenne | Update | Locking | Yarm error spectra | The ~16Hz bounce mode of some optic is
showing up in the Yarm error signal.
MC is kind of 'windy' looking, so |
|
|
6710
|
Tue May 29 21:34:08 2012 |
Jenne | Update | SUS | ETMY oplev spot size reduced |
|
|
|
6709
|
Tue May 29 21:05:30 2012 |
yuta | Update | IOO | PMC, MC alignment are shit |
|
|
|
6708
|
Tue May 29 19:50:01 2012 |
Jenne | Update | IOO | PMC, MC alignment are shit |
|
|
|
6707
|
Tue May 29 17:40:45 2012 |
Jenne | Update | IOO | PMC, MC alignment are shit |
|
|
|
6706
|
Tue May 29 15:55:22 2012 |
steve | Update | SUS | ETMY oplev spot size reduced |
|
|
|
6705
|
Tue May 29 15:49:02 2012 |
Koji | Update | Locking | ETMX trans camera |
|
|
|
6704
|
Tue May 29 15:48:31 2012 |
Koji | Update | IOO | PMC, MC alignment are shit | The followings are a kind of daily check.
Do this without any notice:
- Align PMC. |
|
|
6703
|
Tue May 29 15:29:16 2012 |
Jamie | Update | Computers | latest pynds installed on all new control room machines | The DASWG lscsoft package repositories
have a lot of useful analysis software.
It is all maintained for Debian "sqeeze", |
|
|
6702
|
Tue May 29 14:59:39 2012 |
Jenne | Update | IOO | PMC, MC alignment are shit | [Yuta, Jenne]
PMC and MC alignment are both shit,
although with the WFS on, the MC is pretty |
|
|
6701
|
Tue May 29 14:58:28 2012 |
Jenne | Update | Locking | ETMX trans camera | ...will be helpful for acquiring lock after
the vent. We should install a camera
at ETMX. |
|
|
6700
|
Tue May 29 10:08:21 2012 |
steve | Update | IOO | centered IOO monitoring qpds | IOO Angle & IOO Position QPDs centered. |
|
|
6699
|
Tue May 29 00:53:57 2012 |
Den | Update | CDS | problems | I've noticed several CDS problems:
Communication sign on
C1SUS model turns to red once in a while. |
|
|
6698
|
Tue May 29 00:48:51 2012 |
Den | Update | PEM | sts readout box | STS readout box seems to be partly broken.
I've terminated inputs from the seismometer
and measured the output. I could not do this |
|
|
6697
|
Tue May 29 00:39:52 2012 |
Den | Update | PEM | Guralp noise | I've connected Guralp output to the ADC
without readout box. I've got the same noise
at low frequencies and even worse noise at |
|
|
6696
|
Tue May 29 00:35:57 2012 |
Den | Update | PEM | guralp readout box | I measured the frequency response of the
Guralp readout box and noise by providing
sin signal of amplitude 50 mV at 15 Hz for |
|
|
6695
|
Sun May 27 23:15:22 2012 |
Den | Update | PEM | experiments with seismometers | I wondered if linoleum is a reason of high
Guralp noise. I measured Guralp noise in
3 cases: they stand on a very soft piece |
|
|
6694
|
Sun May 27 17:19:27 2012 |
rana | Summary | lore | Strawberries | We have placed some sweet giant strawberries
in the fridge; free for eating for anyone
working in the lab today or tomorrow: |
|
|
6693
|
Sat May 26 23:57:11 2012 |
Den | Update | PEM | Guralp noise | I've looked through the Guralp manual to
figure out what noise do they declare. They
present it in acceleration units in dB relative |
|
|
6692
|
Sat May 26 20:40:48 2012 |
Den | Update | PEM | experiments with seismic noise | I measured relative motion of 2 seismometers
separated by 4, 18 and 38 feet.
|
|
|
6691
|
Sat May 26 15:59:19 2012 |
Den | Update | IOO | Guralp noise is high | As I've mentioned in yesterday's
elog MC mirrors start to move in a synchronistic
manner. I've plotted DELTA_GUR = GUR1_X - |
|
|
6690
|
Sat May 26 01:28:58 2012 |
Koji | Update | General | Clipping improvement | The beam at the dark port was largely clipped.
The arm transmissions (TRX/TRY) were
~0.6 no matter how you try to align. |
|
|
6689
|
Sat May 26 00:08:41 2012 |
Den | Update | IOO | MC_F low frequency noise | MC_F low frequency noise might be
due to local damping electronics. I did not
measure OSEM noise, but even without it electronics |
|
|
6688
|
Fri May 25 23:11:50 2012 |
Suresh | Update | IOO | MC spot positions measured | [Koji, Yuta, Suresh]
We measured the MC spot positions
after re-aligning the MC. The spot |
|
|
6687
|
Fri May 25 20:45:25 2012 |
Duncan Macleod | Summary | Computer Scripts / Programs | 40m summary webpages | There is now a job in the crontab that
will run the shell wrapper every hour, so
the pages _should_ take care of themselves. |
|
|
6686
|
Fri May 25 19:13:10 2012 |
Duncan Macleod | Summary | Computer Scripts / Programs | 40m summary webpages | 40m summary webpages
The
aLIGO-style summary webpages are now running
on 40m data! They are running on megatron |
|
|
6685
|
Fri May 25 17:52:08 2012 |
Jamie | Update | Computers | allegra now running Ubuntu 10.04 | The last of the control room machines is
now upgraded. |
|
|
6684
|
Fri May 25 17:50:38 2012 |
Jamie | Update | Computers | ASS scripts on new ubuntu machines |
|
|
|
6683
|
Fri May 25 16:58:54 2012 |
Jamie | Configuration | Computers | .bashrc for workstations | I have setup a shared .bashrc for all the
workstations that is symlinked to the normal
location on all machines: |
|
|
6682
|
Fri May 25 16:10:53 2012 |
Koji | Update | General | StripTool on Zita restored | ssh -X pianosa
On pianosa |
|
|
6681
|
Fri May 25 13:24:48 2012 |
Den | Update | SUS | MC3 | AA IN -> COIL DRIVER IN transfer function
for MC3
|
|
|
6680
|
Fri May 25 02:56:44 2012 |
Den | Update | SUS | MC3 local damping | I've terminated input to AA filters and
measured signal to coils C1:SUS-MC3_??COIL_OUT.
|
|
|
6679
|
Thu May 24 19:39:18 2012 |
Suresh | Update | IOO | MC and WFS alignment adjusted | [Yuta, Suresh]
We found that the MC was not locking
and that the alignment between PSL and MC |
|
|
6678
|
Thu May 24 16:39:47 2012 |
steve | Update | General | steve's webpage example | 3 strip charts monitoring on 24 hours time
scale: Vac, PSL-IFO, SUS and
10 channel video monitoring inside - outside |
|
|
6677
|
Thu May 24 16:13:05 2012 |
yuta | Update | Computers | ASS scripts on new ubuntu machines | [Den, Yuta]
Background: |
|
|
6676
|
Thu May 24 15:10:43 2012 |
Suresh | Summary | General | IOO (MC) health check webpage layout | Here is the suggested layout
of the MC health check web page layout. I
will update the Omnigraffle file as people |
|
|
6675
|
Thu May 24 14:49:59 2012 |
Koji | Summary | General | Daily news idea | Top tab categolies:
Summary
CDS
CDS Status
|
|
|
6674
|
Thu May 24 13:28:38 2012 |
Den | Update | PEM | HEPA | HEPA filter was running at 90% of max.
I reduced it to 20%. Acoustic noise moved
down |
|
|
6673
|
Thu May 24 12:23:00 2012 |
Den | Update | General | connection error monitor for the website | The main page of connection error monitor
can be a scheme of computers and models with
connections. If there is an error in connection, |
|
|
6672
|
Thu May 24 10:10:04 2012 |
steve | Update | IOO | PMC locked | The PMC behavior is not changed.
|
|
|
6671
|
Thu May 24 02:55:36 2012 |
Den | Update | PEM | acoustic noise in MCL | Mic in the PSL showed that fluctuations
in the MCL in the frequency range 10 - 100
Hz are due to acoustic noise. I've measured |
|
|
6670
|
Thu May 24 01:17:13 2012 |
Den | Update | CDS | PMC autolocker |
|
|
|
6669
|
Wed May 23 21:32:15 2012 |
Suresh | Update | IOO | WFS didn't turn off automatically |
|
|
|
6668
|
Wed May 23 20:41:37 2012 |
Suresh | Bureaucracy | General | 40m Meeting Action Items: Tip-tilts : cabling and electronics |
|
|
|
6667
|
Wed May 23 13:57:11 2012 |
Jenne | Bureaucracy | General | 40m Meeting Action Items | PRIORITY
ITEMS:
Align Ygreen beam - |
|
|
6666
|
Wed May 23 11:30:39 2012 |
steve | Update | PEM | new emergency back up lights installed | New self checking emergency back
up lights were installed at 13 locations
in the 40m lab. |
|