Description

Page : 1077

Sondrestrom Lidar Operation Log

Operator(s) : E.Guðmundsson
Purpose : Routine data collection and tests
Date(s) : 021024 - 021025
File(s) : L20021024_000 - L20021025_001
Comments : New capacitor in the SP laser.

had difficulties converging at low altitues, but took an hours worth of data with the
best setting I could come up with. Investigated during the run the ocational
records
that are bad and there is indication that the chopeer is wearing out.
Logfile : l0210240.log

Setup:0

Page : 1078
[Variables]
Dye Power=75mJ
Rayleigh Power=480mJ

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

Logsheet:0

Page : 1079

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : E.Guðmundsson
Date(s) : 021024 - 021025
File(s) : L20021024_000 - L20021025_001

Files	Time [UT]	Comments	S	Ope
L20021024_000	21:35:09	Start of experiment	0	EG
	23:18:44	tweeked sodium HG, it had drifted since start. energy	0	EG
		now 65mJ
	23:19:48	have been taking data with chopper set at 30km	0	EG
	23:20:17	Changing chopper altitude to 70km....	0	EG
	23:30:02	Had some difficulties changing chopper alt. data in the	0	EG
		interim no good.
	23:30:26	taking data for an hour with the chopper set at 70km	0	EG
	00:32:56	Pausing rayleigh data aq to change convergence.	0	EG
L20021025_001	01:11:48	Resuming with convergence at a low altitude with	0
		max counts approximating what is normally at 25-30km
		(normal data taking settings)
L20021025_001	02:33:04	End of experiment	0