### OBSDATE ###
20130520

### LOGDATE ###
130520

### OBSERVERS ###
ACR

### WEATHER ###
Fine, approaching cloud expected at ~1am

### LOCATION ###
MQ

### PROGRAM ###
Sco-Cen binaries

### SIDEROSTATS ###
  n4   s3 

### TARGETS ###
Bet-Cru (hr4853) 
Initial fluxes
S3 South: 15000, North: 25000
S15 needed a slight tweak and moving STT got south to 18000.

Fringe search now: Fringes at ~0um. But SN was very low for Bet-Cru at about 3-4, and at most 9. 
Either I forgot to background, backgrounded without saving, or we are at a minimum of the Bet-Cru binary V^2? Didn't get any data but switched to Del-Cru for testing. 

Del-Cru (hr 4656) Fringes at -30um. Again, very low <4 SN and very patchy. 

Back to Bet-Cru: fringes at -450um after dispersion servo. Still very patchy and low SN.  Note that -450um is not the normal position, usually it's around -100-200um at the start of the night, not sure why the fringes are here now. 

Del-Cru (hr4656): Fringes at -520um. Very patchy, Low SN (<7, its benn significantly higher on this star before) 

Really really bad seeing?
Closing




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

### PROBLEMS ###