Description


Page : 1275

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson, Chirantan, Mukhopadhyay, Nathan, Rausch, Nathan Rausch
Purpose : Routine data collection NLC campaign
Date(s) : 030707 - 030708
File(s) : L20030707_002 - L20030708_006
Comments :
Logfile : l0307070.log

Setup:0


Page : 1276
[Variables]
Rayleigh Power=430mJ

[0]
front end Iris=2.5mm
Rayleigh System=On
Rayleigh Field stop=2.0mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=2.5mm
Etalon=Out
Daystar=8A_In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1277

Sondrestrom Lidar Operation Log


Log Sheet 1 of 2
Operators : E.Guðmundsson, Chirantan Mukhopadhyay
Date(s) : 030707 - 030708
File(s) : L20030707_002 - L20030708_004
FilesTime [UT]CommentsCntSOpe
L20030707_00212:42:08Start of experiment0EG
L20030707_00415:16:55Data aq froze0EG
L20030707_00415:24:55in th air again2650EG
L20030707_00416:05:14Clearly visible cirrus knocking the counts down a bit2500EG
L20030707_00620:28:34Started sodium system after repair -relocation of preamp2640EG
dye cell
L20030707_00620:40:22counts2550CM
L20030707_00622:11:21Adjusted Na wavelength2790CM
L20030707_00700:12:59counts3240CM
L20030708_00102:04:07counts2940CM
L20030708_00104:42:05Adjusted Na wavelength2940CM
L20030708_00105:39:03pausing data acq for a while working on ensuring best3130CM
extinction in the off plane (for the flipping mode)
L20030708_00205:46:01extinction is at it's best at the current plate settings0EG
cahnging back to normal data collection mode
L20030708_00205:52:03Taking normal data again, Running flipping mode110EG
L20030708_00205:53:15Current noise subtracted counts in the on plane are 3173170EG
L20030708_00205:54:49Current noise subtracted counts in the off plane are 12120EG
Running the flipping mode for the next 30 min309
L20030708_00206:01:40converged sodium channel3110EG
L20030708_00206:44:03Chnaged back to normal data aq mode50EG
L20030708_00206:44:38incremented filename50EG
L20030708_00308:50:21Tuned sodium 3200EG
L20030708_00409:40:53Tuned sodium2990EG

Logsheet:1


Page : 1278

Sondrestrom Lidar Operation Log


Log Sheet 2 of 2
Operators : E.Guðmundsson, Nathan, Rausch,
Date(s) : 030708 - 030708
File(s) : L20030708_004 - L20030708_006
FilesTime [UT]CommentsCntSOpe
L20030708_00409:44:28loks like there is a very weak NLC at 82km, visible only3000EG
using 20-30min integrations
L20030708_00410:27:40counts3090NR
L20030708_00410:34:20Na Data Acq down. Restarting ArcLite0NR
L20030708_00511:27:47Na counts = 5563000NR
L20030708_00511:48:44Good Sodium Layer3040NR
L20030708_00512:48:31Weak NLC remains visible w/30 average3180NR
L20030708_00613:25:57counts; Na = 4583090NR
L20030708_00614:49:42Na counts 4132490NR
L20030708_00614:54:47End of experiment0NR