Description

Page : 99

Sondrestrom Lidar Operation Log

Operator(s) : J.Geddes
Purpose : Routine data collection
Date(s) : 980719 - 980720
File(s) : L9807190 - L9807194
Comments : During the night a very weak NLC was observed from roughly 430 - 6 UT. The
cloud was visible at first only on long integration times (30 - 60 min) but later was
detected in 5 minute integrations and could even sporadically be seen in the raw
profiles.
Logfile : l9807190.log

Setup:0

Page : 100
[Variables]
Rayleigh Power=575 mJ

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

[1]
90% PMT Iris=not_installed
Rayleigh System=On
Dye System=Off
Daystar=Out
Polerizer=In
HalfWave Plates=Tracking
Filter wheel=2:532/0.5nm

Logsheet:0

Page : 101

Sondrestrom Lidar Operation Log

Log Sheet 1 of 1
Operators : J.Geddes
Date(s) : 980719 - 980720
File(s) : L9807190 - L9807194

Files	Time [UT]	Comments	Cnt	S	Ope
L9807190	23:03:36	Start of experiment		0	J.G
L9807190	23:10:23	Do not use first several profiles. Telescope cover was not removed.	545	0	J.G
L9807190	23:15:23	HG adjusted	542	0	J.G
L9807190	23:19:52	HG adjusted	600	0	J.G
L9807190	23:22:49	HG adjusted	641	0	J.G
L9807190	23:26:15	HG adjusted	624	0	J.G
L9807190	23:30:50	HG adjusted	585	0	J.G
L9807190	23:34:32	HG adjusted	529	0	J.G
L9807190	23:37:36	HG adjusted		0	J.G
L9807190	23:40:40	HG adjusted	595	0	J.G
L9807190	23:44:01	HG adjusted	508	0	J.G
L9807190	23:51:27	Convergence mirror adjusted	571	0	J.G
L9807190	00:00:07	HG and convergence mirror adjusted	637	0	J.G
L9807191	00:04:42	System seems solid. File number incremented.	604	0	J.G
L9807193	05:15:15	Daystar taken out during records 7 and 8. New 5A 532nm filter put in its place.	1794	1	J.G
L9807193	06:00:33	System switched back to Daystar configuration during records 53 and 54. SZA=88.0	3143	0	J.G
L9807194	10:06:27	End of experiment	835	0	J.G