### OBSDATE ###
20110707

### LOGDATE ###
110707

### OBSERVERS ###
YK, PGT

### WEATHER ###
RH ~60-80%, crescent moon, clear sky

### LOCATION ###
ROCS

### PROGRAM ###
To observe del Sco

### SIDEROSTATS ###
 n3 n4 s1   

### TARGETS ###
None.

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

### PROBLEMS ###
The roof status for N4 is not working. Although the roof is actually opened roofgtk still read closed.

Initially, only managed to acquire star on acqlabjack with N4 and N3, but not on PAVO. But after 10-15 mins of track spiral searching, PAVO finally saw the
star with N3.

Acquiring star with S1 is as smooth as silk.

Tried searching for fringes with HR 5685 and HR 5267 but did not find any. Searched from -5000 to +9000 at a rate of 5. The S/N was always below 2.5. OPD error on OPCON seldom (or never??) went more than 1um.

Also tried to zero the cart couple of times and realigned N/S beams with M15 a little bit. Still no fringes. The cart stopped at ~12m once during slew and had to be cab_reset once during the entire observation session.

Could it be the focus of the 35m lens? We have no idea how to assess the quality of focus.