Description


Page : 1080

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson, J.Thayer
Purpose : Sodium measurements and testing
Date(s) : 021112 - 021112
File(s) : L20021112_000 - L20021112_002
Comments : Performed tests on Sodium system only. Meteor Mode (works nicely). Chopper
was adjusted during data taking - iniitial chopper delay was 3451 microsec, sodium
delay was 3875 microsec (about 25 km clear opening). After about one hour, new
sodium delay was set to 3708 microsec (about 55 km). Background test performed
using light in telescope. Used two different iris settings of 1 mm and 5 mm.
Logfile : l0211110.log

Setup:0


Page : 1081
[Variables]
Dye Power=96 mJ

[0]
Iris=1mm
Rayleigh System=Off
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=Out
HalfWave Plates=In
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1082

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : J.Thayer
Date(s) : 021112 - 021112
File(s) : L20021112_000 - L20021112_002
FilesTime [UT]CommentsCntSOpe
L20021112_00004:31:47Clear skies, running sodium only. 0JT
Will take "normal" data for a while
L20021112_00005:04:38Nice Sodium layer with equivalent altitude of almost 30 km.0JT
L20021112_00105:21:44New Na experiment: 3 second online integration (30 shots)140JT
L20021112_00105:31:07Good signal even at 3 second integrations0JT
L20021112_00206:03:43New Na Experiment: Moving chopper to an altitude of 50km0JT
online integration has been reset to 60 seconds or 600 shots
L20021112_00206:34:58Chopper test: Blocked Na signal and placed light into telescope0JT
Note iris opening is 1 mm, close to 1 millirad FOV
L20021112_00206:43:59Opened FOV to fully open 5mm-no noticeble change, hmmm0JT
L20021112_00206:50:51End of experiment0JT