Date: 09-05-2007
Quanta-Ray ND:YAG laser 

Special data for low cloud calibration at 1064-nm

Observers:	10:00am - 12:40pm Fanny/Leona
		12:40pm - 3:20pm  Cao/Viviana
		3:20pm	- 6:00pm  Wu/Miguel
            
Weather status: Most Low-leve1 clouds
          
Lidar status:
Power measured at 10:15 am by Wu/cao/Fanny
        355nm : 7.8 w
        532nm : 2.12 w 
        1064nm: 4.62 w 

Three beam alignment by Wu/cao

Neutral density filters (NDF) in the receiver 
  355-nm NDF OD=1.0
  532-nm NDF OD=
  1064-nm, NDF OD=0.5

From 1:21pm,acquire data for low-clouds calibration at 1064-nm
To confirm the linearity of lidar signas,change NDF and reduce laser power at 1064-nm
no change at 532-nm and 355-nm
NDF OD=1.3 (old mark)
---------------------------------------------------------
Time :   1:21pm,1:40,1:57,2:15,2:36,2:55,3:46, 4:18, 4:51,5:13,6:00
P1064(w): 3.71, 3.64,3.65,3.64,3.69,3.67,3.66, 3.63, 3.63,3.67,3.66

Insert NDF=0.5, Null to test filter transmission

Power measured at 6:00 pm by Cao/Miguel
         355nm  : 7.33 w 
         532nm  : 1.96 w 
         1064nm : 3.66 W

End at 6:00 pm