MDM Trouble Report for 2018 Mar 01

Telescope: 2.4m
Observer(s): John Thorstensen (Dartmouth)
Instrument: modspec + echelle

Problem(s) Encountered:
The first spectrum of the night (of a bright star) came out 
looking like a bias, indicating that the shutter in modspec 
was not opening.  I removed the shutter housing from the 
spectrograph and found that it would open when I operated it
using the switch on the shutter power supply.  Eventually 
found that the connection between the Leach controller and the 
shutter had failed because the connector at the power supply
box had somehow fallen out.  Eric told me the correct way to 
plug it back in (there were several possibilities) and after
reassembling everything I was back on the air.  I do hope that 
I didn't dislodge the O-ring between the shutter assembly and 
the spectrograph body in re-installing! 

Guide probe froze at the end of the night; I restarted it, but 
it'd be good to check it's OK.

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Submitted on 2018 Mar 2 [6:30:43]