Description


Page : 2059

Sondrestrom Lidar Operation Log


Operator(s) : Christian, Have, Pedersen, Katelynn, Greer, Katelynn, Greer, Katelynn Greer
Purpose : Noise Experiments
Date(s) : 080801 - 080801
File(s) : L20080731_000 - L20080801_004
Comments :
Logfile : l0808010.log

Setup:0


Page : 2060
[0]
front end Iris=not_installed
Rayleigh System=On
Rayleigh Field stop=0.5mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=0.5mm
Etalon=Out
Daystar=4A_In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 2061

Sondrestrom Lidar Operation Log


Log Sheet 1 of 3
Operators : Christian, Have, Pedersen, Katelynn Greer
Date(s) : 080801 - 080801
File(s) : L20080731_000 - L20080801_002
FilesTime [UT]CommentsCntSOpe
L20080731_00000:05:27Start of experiment0KRG
SP Energy: 5200 mJ; Counts=14055
Big Sky1=0.70; Big Sky2=0.70
Raman PMT off
Begin looking for HWP offsets
00:05:29Daystar removed replaced with 3 dB filter0KRG
00:27:20Day Star put back into place0KRG
Looking for TX offset
00:31:03Stopping experiment to implement new offsets0KRG
Also, radar has (and is) running
L20080801_00000:44:30Beginning to record data again with new offsets450KRG
00:56:37Hey! It looks good again!-70KRG
The determined offsets that are being used are:
TX(PlateA)=42.5; RX(PlateB)=48;
01:15:32Beginning Steve's Experiment; Turning off DAQ and0KRG
checking HWP are zero before beginning again
01:20:32Starting DAQ software for 532 and 607 channels0KRG
HWP sun tracking, no flipping
01:25:32Hmmm, no Rayliegh Signal...0KRG
01:39:49Ok, it looks like I set the offsets such that the signal is 0KRG
minimized in sun tracking mode- I will change the offsets
by 90 and see if that resolves this
01:40:50Stopping DAQ software and changing offsets0KRG
L20080801_00202:06:56DAQ restarted, sun tracking no flipping0KRG

Logsheet:1


Page : 2062

Sondrestrom Lidar Operation Log


Log Sheet 2 of 3
Operators : Katelynn Greer
Date(s) : 080801 - 080801
File(s) : L20080801_003 - L20080801_003
FilesTime [UT]CommentsCntSOpe
02:08:12Looks much better. Current offset values are:610KRG
TX(PlateA)=132.5; RX(PlateB)=138
02:09:50Beginning Steve's Experiment (again)0KRG
30 minutes of sun tracking only DAQ
02:11:52NLC detection0KRG
02:52:03Executing Period 2 of Steve's Experiment:520KRG
HWPs tracking sun AND flipping for next 30 minutes
03:11:29510KRG
03:27:22Wrapping controller in foil0KRG
03:32:32Executing Period 3 of Steve's Experiment:20KRG
HWPs tracking sun AND flipping, HWP controller
wrapped in foil for next 30 minutes
03:34:33Hmm, flipping stuck, checking controller0KRG
03:35:57Restarting DAQ and checking HWP are zeroed0KRG
03:44:45DAQ restarted0KRG
03:53:29Restarting Period 30KRG
04:24:51Removing foil controller0KRG
04:26:16Executing Period 4 of Steve's Experiment570KRG
HWPs suntracking AND flipping
HWP has NO foil wrapping
05:01:35Rayleigh signal doesn't quite seem straight0KRG
after pulsing?
L20080801_00305:02:16Delaying Period 5 of Steve's experiment because of0KRG
excellent NLC

Logsheet:2


Page : 2063

Sondrestrom Lidar Operation Log


Log Sheet 3 of 3
Operators : Katelynn Greer
Date(s) : 080801 - 080801
File(s) : L20080801_003 - L20080801_004
FilesTime [UT]CommentsCntSOpe
05:20:41I took some photographs (with my personal camera) of0KRG
what I think are NLCs
05:21:37Unfortunately, a low-level cloud has moved into the beam0KRG
L20080801_00305:37:0110KRG
L20080801_00306:28:41510KRG
L20080801_00407:14:59520KRG
L20080801_00408:12:46490KRG
08:15:40NLC has dissipated, I think0KRG
08:17:19Resuming Steve's Experiment0KRG
Period 5: Suntracking NO flipping
Controller unwrapped
L20080801_00409:01:41End of experiment0KRG