MDM Trouble Report for 2021 Oct 29

Telescope: 2.4m
Observer(s): Rupert (MDM)
Instrument: OSMOS/B

Problem(s) Encountered:
Twice in the span of 15 minutes the dome moved on it's own away
from the telescope position while in tracking mode. The first time
it happened the following error message appeared in the Galil
Status field: 

 Cmd:  tcsLim=26  Error: Time Out 

The dome was at ~165 then moved ccw ~258 before stopping. It then
stopped then aligned itself with the telescope again. Stopped the
exposure while this happened then restarted it when the dome was
where it should've been. Ten minutes later it happens again, this
time with the following status:

 Cmd:  SB7 Error: Time Out 

This time the dome didn't stop. After two full revolutions I
turned autodome off, which stopped it. I then homed it and the
telescope, shutdown the TCS computer as well as the chassis i
the computer room. Brought everything back up with no further
issues.

My guess is there was a disconnection somehow that sent the dome
into a frenzy.


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Submitted on 2021 Oct 30 [5:10:56]