### OBSDATE ###
20120425

### LOGDATE ###
120425

### OBSERVERS ###
MJI, JGR

### WEATHER ###
Clear-ish (some think high clouds at sunset and on infrared sat picture)
Humidity rising, started at 80%, 88% at decision to park.

### LOCATION ###
SUSI

### PROGRAM ###
A baseline set of observations prior to mirror recoating.

Gamma Cru 5m data

### SIDEROSTATS ###
n1   s1   

### TARGETS ###
HR 2326
HR 4853
HR 4763
HR 4700

### QUALITY ###
Very good (several calibrated points)  

### PROBLEMS ###
- S1 and N1 *didn't* have problems acquiring. Wow. Go pointing models.
- The S15 mirror started way out of alignment. 
- S1 elevation index seemed unreliable this time (Ben once said that the azimuth index pulse was unreliable). It also failed to acquire delta Cru until a re-indexing.
- Beta Cru (HR 4853) had very average fringes - obviously worse than Canopus earlier in the night. Re-aligned NTT to maximise FLUX in the PAVO server then all was not too bad (at least a 100s continuous lock).
- Fringes continued to get worse... no clouds obvious.
- Eventually quit on the gam Cru/del Cru sequence and did a gam Cru/bet Cru sequence.  
- At one point, the model offsets for both siderostats went to about 1200 arcsec (i.e. 0.3 degrees). Did PAVO record a fake tip/tilt lock that reset these? I wasn't watching but it took me a little while to figure out why both spiral searches suddenly weren't finding stars. When I then re-indexed South, the az axis was out by at least 1 degree.