Description


Page : 1189

Sondrestrom Lidar Operation Log


Operator(s) : E.Guðmundsson
Purpose : Daystar characterization in receiver, TX HWP and extinction and routine data collection
Date(s) : 030307 - 030307
File(s) : L20030306_000 - L20030307_000
Comments :
Logfile : l0303070.log

Setup:0


Page : 1190
[Variables]
Dye Power=115mJ
Rayleigh Power=460mJ

[0]
Iris=min_opening
Rayleigh System=On
Rayleigh path attenuation=0dB
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

[1]
Iris=min_opening
Rayleigh System=On
Rayleigh path attenuation=0dB
Dye System=On
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=on

[2]
Iris=min_opening
Rayleigh System=On
Rayleigh path attenuation=0dB
Dye System=On
Etalon=Out

Setup:1


Page : 1191
Daystar=8A_In
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1192

Sondrestrom Lidar Operation Log


Log Sheet 1 of 3
Operators : E.Guðmundsson
Date(s) : 030307 - 030307
File(s) : L20030306_000 - L20030307_000
FilesTime [UT]CommentsCntSOpe
L20030306_00000:56:53Start of experiment11530EG
00:56:59NOTE. Actual start a bit earlyer but due to tweeking and 0EG
and such on both channels data is not very good until now.
L20030306_00000:57:42taking refernence data before atempting to use daystars11420EG
L20030306_00000:58:15Weather note: Clear skies but a lot of dust visible in the 11610EG
beams due to recent fohn wind.
L20030306_00001:10:07counts11800EG
L20030306_00001:10:13swithing Rayleigh laser over to seeded mode to get counts11800EG
L20030306_00001:26:06I'm having doubts weather the laser is seeding propperly11281EG
setting up scope.
L20030306_00001:47:57looks like I'm seeding fine! reduction in BUT is 12ns while1EG
seeding.
L20030306_00001:48:21counts10471EG
L20030306_00001:49:27counts 10521EG
L20030306_00001:51:30counts10411EG
L20030306_00002:04:13interupting data aq to install 8A dasystar for transmission1EG
testing
L20030306_00002:15:36initial counts after installation1512EG
L20030306_00002:27:52working on temperature started at 3.2 on trim pod1622EG
and jumped to 2.2 to see impact on counts
L20030307_00002:29:51looks like its on the way down, waiting just another record1422EG
L20030307_00002:30:57Yes, it's worse jumping back to 3.2 and waiting for it 1352EG
to stabilize
L20030307_00002:37:41counts on the way up again1482EG

Logsheet:1


Page : 1193

Sondrestrom Lidar Operation Log


Log Sheet 2 of 3
Operators : E.Guðmundsson
Date(s) : 030307 - 030307
File(s) : L20030307_000 - L20030307_000
FilesTime [UT]CommentsCntSOpe
L20030307_00002:39:05counts1522EG
L20030307_00002:41:11counts 1592EG
L20030307_00002:41:17increasing temp from 3.2 to 4.21592EG
L20030307_00002:44:07counts 1552EG
L20030307_00002:46:17Counts 1662EG
L20030307_00002:47:16Counts1652EG
L20030307_00002:47:50Counts 1612EG
L20030307_00002:48:55counts1582EG
L20030307_00002:49:50counts1582EG
L20030307_00002:50:50counts1532EG
L20030307_00002:50:56Looks like i passed the peek, backing to 3.61532EG
L20030307_00002:52:29counts1492EG
L20030307_00002:52:50counts, still warming should turn soon1392EG
L20030307_00002:54:14counts1542EG
L20030307_00002:56:05counts1672EG
L20030307_00002:56:52counts1652EG
L20030307_00003:00:16counts1732EG
L20030307_00003:04:05trying converging1652EG
L20030307_00003:06:07done converging1782EG
L20030307_00003:06:55counts1782EG
L20030307_00003:32:04removing seeding 1602EG
L20030307_00003:33:01Laser running unseeeded1672EG
L20030307_00003:34:29Counts1782EG
L20030307_00003:36:51Daystar out of the path , laser unseeded10022EG

Logsheet:2


Page : 1194

Sondrestrom Lidar Operation Log


Log Sheet 3 of 3
Operators : E.Guðmundsson
Date(s) : 030307 - 030307
File(s) : L20030307_000 - L20030307_000
FilesTime [UT]CommentsCntSOpe
L20030307_00003:37:12counts10960EG
L20030307_00003:38:08Reconverging0EG
L20030307_00003:41:38counts10972EG
L20030307_00004:07:13No good reslts...0EG
L20030307_00004:06:58End of experiment11200EG