### OBSDATE ###
20110510

### LOGDATE ###
110511

### OBSERVERS ###
YK,XH,MJI

### WEATHER ###
RH~40% (beggining)-90% (end), a few clouds



### LOCATION ###
ROCS

### PROGRAM ###
We aim at resolving disk around Be stars and following their growth decay phases.




### SIDEROSTATS ###
  n4   s3 

### TARGETS ###
spica, hr 4662 (cal)
hr 5531 (cal1), delta sco, hr 5685 (cal2),delta sco,hr 5685 (cal2),delta sco



### PROBLEMS ###
Second part of the night : this was epic again.

So for delta sco, the LDC can work for n4+s3 and n3+s1. However north periscope of s1 failed to start (power off).

So we go to n4+s3 : n4 close roof sensor prints BAD ROOF but it opens and it closed. 

When going to hr 5531, the cart stopped at about 12m. We could position it by some zcoarse commands.

Going to delta sco, the cart stopped at ~12 meters again with the zcoarse command, by repeating this command , we managed to get it where we wanted.

When we found the fringes, PAVO didn t want to save neither lock them. So we reinitialized PAVO. We then reindexed N4 (we lost the star and couldn t find it back) and everything was back to normal.

On the next calibrator, we couldn t find the fringes, the acqlabjack was not talking to oplc anymore so oplc didn t know when he passed Zset.
We did a reopen, got Zset back on ON and reset the cart position and found the fringes.   


Then the North laser current was bad, we turned it off and on, waiting for it to stabilize (~5 min).