| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
2561
|
Tue Feb 2 16:10:09 2010 |
steve | Update | PEM | construction progress next door | CES construction is progressing. The 40m
suspensions are bearing well.
atm1, PEM vs sus plots of 120 |
|
|
2638
|
Wed Feb 24 16:11:15 2010 |
Jenne | Update | PEM | Seismic witnesses near MC1 tank moved | Since we're going to open the MC1 tank
tomorrow, I've moved the MC1 accelerometers
and the Guralp over to underneath MC2 for |
|
|
2661
|
Sun Mar 7 23:05:39 2010 |
rana | Update | PEM | Seismic witnesses near MC1 tank moved |
|
|
|
2662
|
Mon Mar 8 18:15:27 2010 |
rana | Update | PEM | Styrofoam Cooler on the Seismos | I put Jenne's
cooler over the seismometers |
|
|
2663
|
Tue Mar 9 09:04:20 2010 |
steve | Update | PEM | keep vacuum chamber closed | They are sandblasting at CES: our particle
counts are very high. DO NOT OPEN CHAMBER! |
|
|
2665
|
Tue Mar 9 12:06:53 2010 |
rana, Jenne | Update | PEM | Styrofoam Cooler on the Seismos | Looks like the GUR2_X signal is bad. Jenne
says that we need to center it mechanically
before the signals will become useful again. |
|
|
2666
|
Wed Mar 10 15:02:58 2010 |
rana | Update | PEM | Styrofoam Cooler on the Seismos | This is the spectra and coherence from
a quiet time last night. I've lowered the
Guralp cal by a factor of 2 to account for |
|
|
2671
|
Sat Mar 13 21:30:22 2010 |
rana | Update | PEM | Styrofoam Cooler on the Seismos | |
|
|
2673
|
Mon Mar 15 09:43:47 2010 |
steve | Update | PEM | more sandblasting today | Do not open IFO vacuum envelope today!
They are sandblasting again at CES |
|
|
2674
|
Mon Mar 15 16:39:36 2010 |
steve | Update | PEM | Guralp2 centered |
|
|
|
2678
|
Thu Mar 18 08:49:51 2010 |
steve | Update | PEM | Guralp2 centered again ? |
Someone adjusted the Guralp2 mass
position last night?? |
|
|
2685
|
Fri Mar 19 18:00:14 2010 |
jenne | Update | PEM | Guralp2 centered again | [Jenne, Sanjit]
It looks like Steve used a GND-12V
supply to power the Guralp through the little |
|
|
2686
|
Fri Mar 19 21:15:33 2010 |
rana | Update | PEM | Guralp2 centered again | This trend of the last 200 days shows that
GUR2 has been bad forever...until now anyways.
|
|
|
2687
|
Fri Mar 19 23:03:41 2010 |
rana | Update | PEM | Guralp2 centered again | I went and double-checked and aligned the
styrofoam cooler at ~5:00 UTC. It was fine,
but we really need a better huddling box. |
|
|
2689
|
Sun Mar 21 19:25:29 2010 |
rana | Update | PEM | Guralp2 centered again | From this morning, now in calibrated units,
and with the Güralp self noise spec
from the Güralp manual. |
|
|
2694
|
Mon Mar 22 11:37:09 2010 |
steve | Update | PEM | jackhammering | There was more jackhammering this morning
just about 20 ft north-west of the beamsplitter
chamber, outside. |
|
|
2701
|
Tue Mar 23 10:11:13 2010 |
steve | Update | PEM | small air cond unit failed yesterday | Old control room air condition failed yesterday
around noon. It was blowing 80-85F hot air
for about 2-3 hours at racks 1Y4-7 and the |
|
|
2713
|
Thu Mar 25 09:07:08 2010 |
steve | Update | PEM | Guralp2 x problem is back |
|
|
|
2743
|
Wed Mar 31 16:31:44 2010 |
steve | Update | PEM | Guralp interface box turned off |
|
|
|
2764
|
Mon Apr 5 01:02:07 2010 |
rana | Update | PEM | Guralp interface box turned off | I was
checking into the Guralp situation today.
I put the rubber balls underneath the granite |
|
|
2765
|
Mon Apr 5 08:43:48 2010 |
steve | Update | PEM | earthquake mag 7.2 | Large
earthquake shakes Baja California, Mexico
and 6 over Magnitude 5 aftershakes follow. |
|
|
2778
|
Wed Apr 7 09:00:01 2010 |
steve | HowTo | PEM | prepare to open chamber | In order to minimize the diffusion of more
dust particles into the vented IFO vacuum
envelope |
|
|
2802
|
Fri Apr 16 17:26:23 2010 |
Jenne | Update | PEM | Guralp Breakout Box pulled | I
pulled the Guralp breakout box from the rack,
and it's sitting on the EE bench here. |
|
|
2811
|
Tue Apr 20 00:32:30 2010 |
Jenne | Update | PEM | Guralp Breakout Box put back |
|
|
|
2825
|
Wed Apr 21 15:53:57 2010 |
Jenne | Update | PEM | Seismometers now on the granite slab | The 3 seismometers are now on the granite
slab. The Ranger is now aligned with
the Xarm (perpendicular to the Mode Cleaner) |
|
|
2831
|
Thu Apr 22 09:03:54 2010 |
steve | Omnistructure | PEM | aircondition can not be turned off | Koji and I wanted to turn off the IFO-room
AC so the wind would not blow on MC1-3. We
could not. The switches were probably bypassed |
|
|
2833
|
Thu Apr 22 20:28:40 2010 |
Jenne | Update | PEM | Seismometer Noise Characteristics |
|
|
|
2842
|
Mon Apr 26 11:13:28 2010 |
steve | Omnistructure | PEM | AC on/off is working |
|
|
|
2889
|
Thu May 6 18:25:20 2010 |
Jenne | Update | PEM | Acc power supply turned on | The accelerometer power supply / preamp
board has been OFF because of exciting new
accelerometer measurements. It's now |
|
|
2890
|
Thu May 6 18:43:58 2010 |
rana | Update | PEM | Noise floor of the Ranger Seismometer | I
added a noise model of the SR560 to the LISO
opamp.lib. This assumes you're |
|
|
2892
|
Thu May 6 19:51:22 2010 |
Jenne | Update | PEM | New 'Seismic Spectrum of the 40m' | For reasons unknown, the seismic spectra
posted above Rosalba has been wrong since
~January when it was first posted. |
|
|
2934
|
Fri May 14 16:19:22 2010 |
Jenne | Update | PEM | Guts of a Guralp | [Jenne, Rana]
We took apart and examined one of
the Guralp seismometers this afternoon. |
|
|
2972
|
Mon May 24 07:53:57 2010 |
steve | Configuration | PEM | air cond. just turned ON | IFO room temp 27.5C , Please remember to
turn AC back on ! |
|
|
3002
|
Thu May 27 23:59:54 2010 |
rana | Update | PEM | New Foam Box installed | Valera
and I put the 2 Guralps and the Ranger onto
the big granite slab and then put the new |
|
|
3003
|
Fri May 28 00:40:53 2010 |
rana | Update | PEM | DAQ down | Although trends are available, I
am unable to get any full data from in the
past (using DTT or DV). I started the FB's |
|
|
3005
|
Fri May 28 10:44:47 2010 |
josephb | Update | PEM | DAQ down |
|
|
|
3006
|
Fri May 28 11:26:35 2010 |
Jenne | Update | PEM | New Foam Box installed |
|
|
|
3017
|
Sun May 30 17:51:04 2010 |
kiwamu | HowTo | PEM | Allegra dataviewer | I found the dataviewer didn't work only
on Allegra. This thing sometimes happened
as described in |
|
|
3018
|
Sun May 30 22:18:49 2010 |
rana | Update | PEM | Granite slab w/ lead balls is so far a flop | The seismometers showed an increased
noise in the Y-direction when put on top
of the granite slab. By tapping the slab, |
|
|
3022
|
Mon May 31 22:52:57 2010 |
rana | Update | PEM | Granite slab w/ lead balls is so far a flop | This plot shows the noise with the box
on, but no granite. We're still pretty far
off from the Guralp data sheet. |
|
|
3024
|
Tue Jun 1 11:47:14 2010 |
steve | Update | PEM | lead balls on concrete |
|
|
|
3025
|
Tue Jun 1 15:51:42 2010 |
steve | Update | PEM | foam box for good thermal stability | This box was made to provide good
thermal stability for seismometer calibration.
There is an inner solid shell of 0.064" |
|
|
3037
|
Wed Jun 2 18:09:32 2010 |
steve | Update | PEM | seismometers off of linoleum floor | Steve for Nancy,
Seismometer interface box ac power
was turned off, Guralps disconnected and |
|
|
3039
|
Wed Jun 2 21:21:43 2010 |
steve | Update | PEM | seismometers off of linoleum floor |
|
|
|
3047
|
Thu Jun 3 22:17:05 2010 |
rana | Update | PEM | seismometers off of linoleum floor | At ~2350 UTC on June 2, the seismometers
were turned off. After the granite slab was
repositioned with the new lead, the Ranger |
|
|
3050
|
Fri Jun 4 23:52:57 2010 |
rana | Update | PEM | seismometers off of linoleum floor | |
|
|
3056
|
Tue Jun 8 18:39:36 2010 |
rana | Update | PEM | DAQ down |
|
|
|
3057
|
Tue Jun 8 20:52:25 2010 |
josephb | Update | PEM | DAQ up (for the moment) | As a test, I did a remote reboot of both
Megatron and c1iscex, to make sure there
was no code running that might interfere |
|
|
3060
|
Wed Jun 9 19:47:08 2010 |
nancy | Update | PEM | lead balls on concrete |
|
|
|
3062
|
Thu Jun 10 07:53:14 2010 |
Alberto | Update | PEM | LaTeXlabs |
|
|