Description

Page : 1445

Sondrestrom Lidar Operation Log

Operator(s) : E.Guðmundsson
Purpose : Routine data collection and finalyzing some tweeking for summer
Date(s) : 040511 - 040512
File(s) : L20040511_000 - L20040512_001
Comments :
Logfile : l0405110.log

Setup:0

Page : 1446
[Variables]
Dye Power=45mJ
Rayleigh Power=420mJ

[0]
front end Iris=3.0mm
Rayleigh System=On
Rayleigh Field stop=2.5mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=2.5mm
Etalon=Out
Daystar=8A_In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

[1]
front end Iris=3.0mm
Rayleigh System=On
Rayleigh Field stop=2.5mm
Rayleigh path attenuation=0dB
Dye System=Off
Sodium Field stop=4.0mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

[2]
front end Iris=3.0mm

Setup:1

Page : 1447
Rayleigh System=On
Rayleigh Field stop=3.0mm
Rayleigh path attenuation=0dB
Dye System=On
Sodium Field stop=4.0mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0

Page : 1448

Sondrestrom Lidar Operation Log

Log Sheet 1 of 2
Operators : E.Guðmundsson
Date(s) : 040511 - 040512
File(s) : L20040511_000 - L20040512_000

Files	Time [UT]	Comments	Cnt	S	Ope
L20040511_000	23:14:38	Start of experiment		0	EG
	23:17:40	Starting by verifying RX halfwave position		0	EG
L20040511_001	23:55:30	Starting taking some data to get a hold of status, plates aligned		0	EG
	00:12:14	counts	300	0	EG
L20040511_002	01:29:05	removing daystar from receiver path	300	1	EG
L20040511_002	01:32:05	Taking data without the daystar		1	EG
L20040511_002	02:10:45	Finally found the sodium beam, starting sodium data collection	1604	2	EG
L20040511_002	02:15:59	Sodium SR430 froze, reset while Rayleigh was taking data	1598	2	EG
		Looks like the power cycle may have corrupted a record
L20040511_002	02:18:17	I'd better increment the file		2	EG
L20040512_000	02:20:04	From the profile, sodium signal is looking good - considering low	1598	2	EG
		laser energy. Field stop seems to require some attention
		Will not open the receiver now - I don't want to interupt
		the Rayleigh collection yet by opening up the receiver
L20040512_000	02:27:05	Rayleigh counts looking good. I've been looking for the	1589	2	EG
		6min variability in the profile to profile history but I'm not
		able to see it???
L20040512_000	02:51:23	looked like the counts on the Rayleigh are dropping so I		2	EG
		Tried to converge, was not better.
L20040512_000	03:34:40	There seems to be a thin haze layer attenuating the signal	1252	2	EG
		a bit.
L20040512_000	04:31:27	closing down, going to take a look at the iris settings before	1151	2	EG
L20040512_000	04:36:02	Closed the Rayleigh field stop as far down as possible, tweeked	1326	2	EG
		the XY position slightly.

Logsheet:1

Page : 1449

Sondrestrom Lidar Operation Log

Log Sheet 2 of 2
Operators : E.Guðmundsson
Date(s) : 040512 - 040512
File(s) : L20040512_000 - L20040512_001

Files	Time [UT]	Comments	Cnt	S	Ope
L20040512_000	04:42:23	Sodium field stop opeing reduced a bit and reconverged	1316	2	EG
L20040512_000	04:45:13	Sodium channel reconverged again	1320	2	EG
L20040512_000	04:49:36	Could probably crank the Sodium field stop further down,	1326	2	EG
		did not see a noticable drop in background as with the
		Rayleigh field stop.
L20040512_001	04:50:57	taking data for a few minutes before shutting down for	1326	2	EG
		tonight.
L20040512_001	05:02:44	End of experiment	1328	2	EG