Description


Page : 1800

Sondrestrom Lidar Operation Log


Operator(s) : Christian Have Pedersen
Purpose : Alignment of IR channel and troubleshooting near field light contamination.
Date(s) : 070208 - 070209
File(s) : L20070208_003 - L20070209_002
Comments : Still not able to extract decent profile, result today was worse than last
experiment. Sky is clear. Alignment in optical path was checked several times and
it is okay. Chopper delay checked as well and it is fully open at approx. 30 km
(200us).
Logfile : l0902070.log

Setup:0


Page : 1801
[0]
front end Iris=3.0mm
Rayleigh System=On
Rayleigh Field stop=0.5mm
Rayleigh path attenuation=0dB
Dye System=On
Sodium Field stop=0.5mm
Etalon=Out
Daystar=Out
Polarizer=In
HalfWave Plates=Tracking
Rayleigh Filter=2:532(.5nm)
Rayleigh seeding=off

Logsheet:0


Page : 1802

Sondrestrom Lidar Operation Log


Log Sheet 1 of 1
Operators : Christian Have Pedersen
Date(s) : 070208 - 070209
File(s) : L20070208_003 - L20070209_002
FilesTime [UT]CommentsCntSOpe
L20070208_00322:34:57Start of experiment290cp
L20070208_00322:35:18Starting with alignment of IR channel0cp
L20070208_00323:09:51Now a couple reference measurements.0cp
L20070208_00323:12:45Roof hatch closed. RX cabinet closed. Frontend closed. ligths out.290cp
L20070208_00423:15:06IR counts are a little high compared to Na and Rayleigh.0cp
L20070208_00423:21:17Now opening frontend iris.00cp
L20070208_00523:30:05Now opening roof hatch.00cp
L20070208_00623:32:59Starting up lasers.00cp
L20070208_00700:50:58Restarting app.0cp
L20070209_00001:47:18Sky is hazy0cp
L20070209_00002:12:28Shutting down IR.Stopping Sodium0cp
L20070209_00003:25:49Restart0cp
L20070209_00104:16:06Takeing lasers down. Trying something0cp
L20070209_00104:24:28Up again.0cp
L20070209_00205:48:00Bringing the laser down. Alignment in optical path is okay0cp
But still able to extract a decent profile without nearfield
contamination.
L20070209_00205:51:29End of experiment0cp