MDM Trouble Report for 2007 Feb 22

Telescope: 2.4m
Observer(s): Marshall (OSU)
Instrument: CCDS

Problem(s) Encountered:
The CCDS acqcam was very far out of focus from the telescope focus. 
I haev to say this makes no sense to me, since the slit itself 
was in focus.  I started the night by focusing the telescope by eye 
using the slitviewer, which I always do, and all of the exposure I 
took were donuts.  Finally I did a focus frame, and the telescope 
focus was about 50 counts off from where it had been the previous 
night, and when the star was in focus in the spectrum, the 
star was almost a donut on the slitviewer.

This makes using the slitviewer to focus impossible (obviously) 
but more importantly it is very difficult to use the slitviewer even 
to get the star down the slit.  

I did not have this problem on previous nights, so hopefully 
it won't happen again?  

Another problem I have had this week is that the dome encoders lose
their pointing by up to 40 degrees during the night.  It only happened
3 of the 5 nights I observed.  

K3B on agung crashed the computer when I started it up this morning.  
I used K3B on hiltner instead, which worked fine.

As I mentioned in a previous report, the dome now moves painfully slow,
sometimes taking up to 3 min to get to the target.  This seems 
unacceptably slow to me.  Perhaps some sort of compromise 
could be made between the two speeds?

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Submitted on 2007 Feb 23 [9:32:49]