Description

Page : 280

Sondrestrom Lidar Operation Log

Operator(s) : K.Richmond, E.Gudmundsson
Purpose : Routine data collection
Date(s) : 990525 - 990525
File(s) : L9905250 - L9905254
Comments : Clear skies

03:50UT May be a sporadic sodium layer up there.

Daystar not optimally adjusted in temp. Ended experiment a bit early to adjust
the
thing as seen from data and log sheet.
Logfile : L9905250.log

Setup:0

Page : 281
[Variables]
Dye Power=92mJ
Rayleigh Power=570

[0]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=In
Polerizer=In
HalfWave Plates=Tracking
Filter Wheel=3:Open

[1]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=On
Daystar=Out
Polerizer=Out
HalfWave Plates=Tracking
Filter Wheel=2:532(.5nm)

Logsheet:0

Page : 282

Sondrestrom Lidar Operation Log

Log Sheet 1 of 2
Operators : K.Richmond, E.Gudmundsson
Date(s) : 990525 - 990525
File(s) : L9905250 - L9905254

Files	Time [UT]	Comments	Cnt	S	Ope
L9905250	01:23:10	Start of experiment		0	KR
L9905250	01:28:57	Running with low power (89 mJ) on sodium for now.		0	KR
L9905250	01:38:27	Incremented file number as dye laser was not tuned right,		0	KR
		power was low.	106		KR
L9905251	01:44:45	Paused to remove daystar		0	KR
L9905251	01:48:20	Continuing with setup 1		1	KR
L9905252	02:17:18	Rayleigh Convergence mirror adjusted	1508	1	EG
L9905252	02:30:09	Sodium Convergence mirror adjusted	1429	1	EG
L9905252	02:37:50	Sodium Convergence mirror adjusted	1480	1	EG
L9905252	03:11:07	Played a bit with the tx halfwave plates only to see if I could		1	EG
		increase the counts but no luck
L9905252	03:13:34	Tweeked the rayleigh HG	1418	1	EG
L9905252	03:34:57	Midnight SZA=92.1	1624	1	EG
L9905252	03:50:34	It looks like we have a sporadic sodium layer up there	1535	1	EG
L9905252	04:16:31	Lost the rayleigh system for about 10 min. Overheat		1	EG
L9905252	04:19:54	counts	1643	1	EG
L9905253	05:23:34	Some haze setting in	1698	1	EG
L9905253	05:47:50	changewd to setup 0 again, Incremented	1675	0	EG
L9905254	05:52:00	There must be something wrong with the daystar	133	0	EG
L9905254	05:53:09	End of experiment	101	0	EG
L9905254	05:54:28	Current setting on daystar 5.0 gave it a step to 0.0 to se		0	EG
		the responce over the next few tens of minutes
L9905254	06:02:57	Counts went upto ~400 counts and are starting to fall	353	0	EG
L9905254	06:05:12	Setting temp knob to 2.5	251	0	EG

Logsheet:1

Page : 283

Sondrestrom Lidar Operation Log

Log Sheet 2 of 2
Operators : E.Gudmundsson
Date(s) : 990525 - 990525
File(s) : L9905254 - L9905254

Files	Time [UT]	Comments	Cnt	S	Ope
L9905254	06:10:21	Counts going up	240	0	EG
L9905254	06:12:46	Still going up	292	0	EG
L9905254	06:14:40		343	0	EG
L9905254	06:15:51		323	0	EG
L9905254	06:16:45	Looks like the daystar has stablized at setting 2.5	338	0	EG
L9905254	06:17:15	Setting temp to 3.5 on dayastar	337	0	EG
L9905254	06:19:50		353	0	EG
L9905254	06:25:53	Looks like daystar has settled again	353	0	EG
L9905254	06:27:13	Stepping temp upto 4.0		0	EG
L9905254	06:30:28	A haze layer has popped up interfering with the temp		0	EG
		adjustment of the daystar
L9905254	06:36:29	Setting daystar to 4.15	342	0	EG
L9905254	06:42:05	Highest counts yet seen on this setting	355	0	EG
L9905254	06:50:25	Things getting to noisy to continue, ending the test	335	0	EG
L9905254	06:53:08	Sodium counts still visible on raw counts. Using Johns disp	335	0	EG
L9905254	06:53:03	End of experiment	335	0	EG