2011-06-16 (UT)
==========

Program: CL4 (YSOs, PI: Kraus et al.)

Observers: Fabien Baron, PJ Goldfinger, FLUOR team

B1  B2  B3
----------
E1  W1  W2   (W1=REF)


(S1S2E1E2W1W2: 4-5-1-3-1-5)

CLIMB on beam 1,2,3

LT  - 20:30

*** E1W1W2, W1=ref.


start: weather clear,, humidity 40-60% and r0 = 2-3 cm at first
then humidity spiked, closed till 1:40 LT. 


scan length LONG

trying Wr 140 , cal 193369

1:55 HD 192985  (check if saturation when reducing. hard to tell with NIRO !)
     1000/NONDEST/HALF
     -700 / -1560
     counts: 40 /50 /40
     V: 0.5 / 0.5 / 0.5
2:09 WR 140
     -660 / -1530
     counts: 25 / 30 / 30
     V: 0.24 / 0.22 / 0.31    
2:18 -700 / -1560
     HD 192985
     counts: 40 / 50 / 45
     V: 0.49 / 0.49 / 0.43
2:25 -600 / -1490
     WR 140
     counts: 40 / 50 / 35
     V: 0.41/ 0.38 / 0.54
2:35 HD 195556 (replacement cal from searchcal due to delta_mag too large for standard IOTA cal and saturates )
     counts: 30 / 40 / 35
     V: 0.55 / 0.58 / 0.56
     -900 / -1630
2:47 WR 140
     -560 / -1490 
     counts: 35 / 35/ 35
     V: 0.39 / 0.38 / 0.14
2:55 HD 192985
     -640 / -1520
     counts: 35 / 40 / 35
     V: 0.49 / 0.43 / 0.45
3:10 WR 140
     -580 / -1490 
     counts: 25 / 35/ 25
     V: 0.36 / 0.44 / 0.40 
3:20 HD 195556
     counts: 35 / 35/ 30
     V: 0.45 / 0.54 / 0.54
3:25 WR140 
     -590 / -1530
     counts: 25 / 25/ 20
     V: 0.37 / 0.49 / 0.43
     lost tip/tilt on B3 (W2) in the middle of the data sequence
     got it back
     -650/ -1520
3:43  HD 192985
     -830/ -1570
     counts: 35 / 30 / 30
     V: 0.44 / 0.48 / 0.42
    
trying MWC 361

3:55  NIRO ALIGN on HD 197950  
4:00 scanning for fringes
     recording at 1000/NONDEST/HALF ---- DO NOT USE
     -1866/-2300
     counts: 25 / 30 / 30
     V: 0.64 / 0.43 / 0.48
4:10 -1960/-2290
     MWC 361 saturates at this rate 
     retrying at 750 Hz/DEST 
     counts: 50 / 70 / 75
     V: 0.14 / 0.24 / 0.15
4:34 HD 197950  
     750 Hz/DEST  
     -2000 / -2320
     counts: 40 / 50 / 50
     V:	0.57 / 0.43 / 0.45 
4:48 MWC 361
     -2070/-2352 
     counts: 50 / 55 / 50
     V: 0.14 / 0.27 / 0.09
4:56  HD 198236
      -2200/-2527
     countS: 120/130/120
     V: 0.47 / 0.47 / 0.47


----
summary of observations:

humidity 40-60% but r0 = 2-3 cm, preventing us from finding fringes on anything.
Then humidity spiked and we closed till 1:40 LT. 

WR140 5 brackets

MWC361 2 brackets