### OBSDATE ###
20110412

### LOGDATE ###
110413

### OBSERVERS ###
YK, BN, MJI

### WEATHER ###
Small clouds

### LOCATION ###
SUSI

### PROGRAM ###
Yitping's night testing MUSCA's new camera.

### SIDEROSTATS ###
 n3  s1   

### TARGETS ###
beta Car, gamma Cru... then humidity rose. No fringes.

### PROBLEMS ###
1) The south tip/tilt kept losing lock... then refused to lock. The voltages going to the piezo amplifiers were checked, and indeed were modulated by a "stest" command. The PAVO server could also move the siderostats, and there were no large lags in the PAVO to Sid communication. But nonetheless, the mirror would quickly go to 1.0 in vertical after locking, then lose the star. We later checked that the tip/tilt mirrors really moved in auto-collimation. The siderostat autocol positions were:

N3: 180.724, 359.540
S1: 179.942, 358.407

2) MUSCA had almost no visible I-band flux even on gamma Cru. We later realised that it was completely misaligned... NB Yitping still needs to get a MUSCA output that is the total number of SBIG photons collected per second.

3) We tried to very carefully align PAVO and MUSCA as if we were doing a fine alignment from Sydney. The PAVO pupil ended up noticeably low, and the N3 laser beam was 5 cm off the center of the siderostat. Images were overlapped on PAVO, and On MUSCA, the images were certainly within an arcsec or so of each other.  After looking at the MUSCA laser pupil images more closely, they were not aligned with the red cross-hairs that we'd aligned the LEDs to.