Description

Page : 1873

Sondrestrom Lidar Operation Log

Operator(s) : Christian Have Pedersen
Purpose : Data acq. on 532nm channel
Date(s) : 071127 - 071128
File(s) :
Comments : Good data.
Noise subtracted counts is slowly decreasing through exp. HW plates ?.
And they are a bit low as well.
Logfile : L0711270.log

Setup:0

Page : 1874
[Variables]
Chopper delay=37
Rayleigh Power=500 mJ

[0]
front end Iris=1.5mm
Rayleigh System=On
Rayleigh Field stop=0.5mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=0.5mm
Etalon=Out
Daystar=Out
Polarizer=Out
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0

Page : 1875

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : Christian Have Pedersen
Date(s) : 071127 - 071128
File(s) :

Files	Time [UT]	Comments	Cnt	S	Ope
20071127_000	23:50:34	Start of experiment		0	cp
20071127_000	23:52:44	Primary mirror has been cleaned. However it does not seem	0	0	cp
		to have any discernable effect on the Rayleigh return.	415
20071127_000	23:54:40	Clear sky outside. Excellent conditions for a LIDAR experiment	412	0	cp
20071127_000	23:58:45	Chopper is a little low. Now trying to push up chopper in alt.		0	cp
20071127_000	00:02:55	Now chopper is almost at 30 km alt.	410	0	cp
20071127_000	00:05:23	System stable now. Will take uninterupted data from now on.		0	cp
20071127_000	00:33:53		360	0	cp
20071127_000	01:13:26		323	0	cp
20071128_000	02:22:18		300	0	cp
20071128_000	04:13:17		291	0	cp
20071128_001	05:07:55	Counts slowly decreasing. Maybe the HW plates needs adjusting.	282	0	cp
20071128_001	05:08:05	End of experiment		0	cp