Description

Page : 1955

Sondrestrom Lidar Operation Log

Operator(s) : J Thayer M Hayman
Purpose : Testing all channels except Big Sky laser 2
Date(s) : 080512 - 080512
File(s) : L20080511_001 - L20080512_000
Comments : 1064 nm channel, 607 nm channel, Rayleigh channel and Big SKy laser 1 all
operating for first time

Note: Changed delay on Laser 1 moving out to about 4.7ms from Rayleigh trigger
Laser 2's timing is also changed to move in to about 1.4 ms from Rayleigh trigger
Logfile : l0805110.log

Setup:0

Page : 1956
[0]
front end Iris=not_installed
Rayleigh System=On
Rayleigh Field stop=4.0mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=0.5mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0

Page : 1957

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : J Thayer, M Hayman
Date(s) : 080512 - 080512
File(s) : L20080511_001 - L20080512_000

Files	Time [UT]	Comments	S
L20080511_001	05:49:41	Start of experiment	0
		Clear skies - noticed exhaust from gensets in IR channel
		earlier in the night - could explain the fluctuations in
		Rayleigh signal

L20080512_000	05:56:30	All channels are operating although not optimally	0
		Cover is ON
L20080512_000	06:03:24	Daystar Filter In	0

L20080512_000	06:14:03	worked to adjust BIg Sky Laser 1 plane of polarization by	0
		rotating HW in Big Sky Tx until signal was minimized

L20080512_000	06:34:30	adjusted Big Sky Laser 1 to maximize signal by rotating	0
		HW plate - only about a factor of 2 increase and no
		difference when rotating through the entire 360 degrees

L20080512_000	06:51:23	finished testing - shutting down	0

	06:51:43	End of experiment	0