Description

Page : 0

Sondrestrom Lidar Operation Log

Operator(s) : Christian Have Pedersen
Purpose : Retrieving data, Na and Rayleigh. Tuning of sodium layer.
Date(s) : 070107 - 070108
File(s) : L20070107_000 - L20070108_002
Comments : First run of LIDAR after the overhaul in December (Jeff). Clear sky experiment.
Will be tuning and adjusting the system to optimize the RX 589 and 532 return.
Experiment aborted a couple of times due to GPIB com errors.
Logfile : I0701070.log

Setup:0

Page : 1
[Variables]
Chopper delay=Ray: 36. Na: D0
Dye Power=75 mJ
Rayleigh Power=500 mJ

[0]
front end Iris=1.5mm
Rayleigh System=On
Rayleigh Field stop=4.0mm
Rayleigh path attenuation=0dB
Dye System=On
Sodium Field stop=4.0mm
Etalon=Out
Daystar=Out
Polarizer=Out
HalfWave Plates=In
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0

Page : 2

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : Christian Have Pedersen
Date(s) : 070107 - 070108
File(s) : L20070107_000 - L20070108_002

Files	Time [UT]	Comments	Cnt	S	Ope
L20070107_000	21:16:54	Start of experiment		0	cp
L20070107_000	21:21:46	SR430 setup is not correct. No return. Problems with sodium returns		0	cp
L20070107_000	21:28:54	Rayleigh SR430 stuck. Restarted integration.		0	cp
L20070107_000	21:34:21	Restarting application.		0	cp
L20070107_001	22:01:03	Problems with wavemeter. Adjusted chopper delays.		0	cp
L20070107_001	22:36:43	Restarting app. Necessary for recording of wavelength.	285	0	cp
L20070107_001	22:38:38	Up and running. Rayleigh profile ok. Sodium profile looks ok.	272	0	cp
L20070107_002	23:25:24	Dip in Na count profile at 110 km alt. This might be due to	334	0	cp
		the noise contamination on the sodium channel
L20070107_002	00:11:36	GPIB com error on Rayleigh channel. Restarting application.	330	0	cp
		Acquisition and profiles ok again.
L20070108_000	01:18:53	GPIB com error on Rayleigh channel at rec. 43.	337	0	cp
		Restart again
L20070108_001	02:23:54	Application is still running. Channel return OK.	354	0	cp
		Profiles looks okay and the sky is clear.
L20070108_001	02:52:09	It seems that the LIDAR app. is in conflict with one of	351	0	cp
		the services running on the LIDAR PC.
L20070108_001	03:37:15	Tuning off the sodium layer. Starting at 589.155 =>.161	354	0	cp
L20070108_002	04:00:01	Max. sodium count return at lambda=589.161.		0	cp
L20070108_002	04:15:01	End of experiment	358	0