MDM Trouble Report for 2016 Aug 16

Telescope: 2.4m
Observer(s): Thorstensen&Klusmeyer (Dartmouth,MDM)
Instrument: OSMOS+B4k

Problem(s) Encountered:
Two problems:

1) The dome is not following correctly, and it was immediately 
apparent that the cause is that the encoder is only registering
changes in one direction of rotation.  We set the dome manually
for half the night

2) The data-taking system had problems.  First, during a series
of biases the machine started claiming that the file it was 
writing to already existed - it claimed to be trying to write to
157, but the file number had already incremented beyond that, 
and in any case it made up a string of characters and saved the 
data.  To cure this we followed the instructions in  Duplicate
Files Generated by Prospero (CCDS)  which involved quitting
prospero, quitting caliban, quitting the IC, powering down the 
IC and the caliban disk, and starting back up.  The first time
we did this prospero would not 'startup', so we did it again,
and it worked.  However, when we tried to take data we got 

TELESCOPE CONTROLLER NOT RESPONDING ACQTAG=OSMOS

even though tcstatus gave normal results.  Telescope information
was evidently not written to the headers.  We ended up 
quitting from all four of the control programs, powering
down the IC and caliban, and bringing everything back up 
from scratch.  Things appear to be working now, but weirdly the
Prospero Status window is not painting completely -- it doesn't
have the nice ledger lines and so on.  I'm not sure what 
information is missing, if any.  

It sure would be nice if this system were simplified.



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Submitted on 2016 Aug 17 [5:51:05]