### OBSDATE ###
20140707

### LOGDATE ###
140708

### OBSERVERS ###
Kim Ward-Duong and Yitping Kok (via Skype)

### WEATHER ###
Some thin cloud cover, low winds, moderately high humidity (~70% @ SUSI, 65% @ ATCA) at the beginning of the night, increasing to 103% @ SUSI, 90% @ ATCA and thus closing at 1:45 am.

### LOCATION ###
Home

### PROGRAM ###
Nearby B-star multiplicity survey (KWD)

### SIDEROSTATS ###
 n3   s2  

### TARGETS ###
HR 4853 - Acquisition test at beginning of night (only false fringes saved on accident?)

HR 5695 - Calibrator (possibly only false fringes)
HR 5646 - B-star (possibly only false fringes)

HR 6527 - Bright star test, still no fringes... eventually realized this is lambda Sco, a great triple system but rather inopportune choice for fringe-searching!

HR 6508 - Last bright star test before close, still no fringes.

### QUALITY ###
  Quite bad (no/almost no useful data

### PROBLEMS ###
Quite difficult to find fringes all evening; possibly related to cart position errors (at the beginning, "Zeroset was not found" and required >1m movement), and the cart was at one point 8.5 meters away from zero! Increasing the gain and decreasing the S/N On/Off thresholds did not seem to help find any real fringes, despite tracking from -1500 to 1200 and visiting a number of bright stars. I improved the North laser metrology, but that did not seem to help find fringes either. Will start with alignment on PAVO and OPCON first thing tomorrow!

We also encountered a strange repeating pellicle error (taskmaster: "Pellicle move timed out") which required restarting the ACQ camera, manually moving the pellicle between North, Park, and South, and reacquiring the target each time a new target was entered in taskmaster. When one of the north laser status indicators in OPCON flashed between "heat" and "OK" intermittently, I cycled the power -- however, did not realize that the cart position would also need to be re-zeroed until much later (oops! so added that part to the wiki). 

Eventually the humidity became too high to continue tonight, so will try again tomorrow! Lots of lessons learned this evening, even if no usable data.