MDM Trouble Report for 2018 Mar 14

Telescope: 2.4m
Observer(s): Ryan Chornock (Ohio University)
Instrument: OSMOS/B

Problem(s) Encountered:
I didn't lose any real time because of the poor weather, but I did encounter two issues.

1) I had an issue with the rotator the first time I shut down.  I sent the rotator to PA=0 according to the display, but I could see that the instrument was pretty far from the normal position. I aligned the peg with the fiducial mark and the display read 23 degrees. I reset the rotator angle in the TCS software to be zero at this position, but I don't know how precise it is. I wasn't able to successfully test it on-sky afterwards due to weather, but I did rotate it to +90 and back down to zero and the peg stayed aligned with the fiducial.

2) The guider stage got stuck.  Re-initializing XMIS in software didn't help, so I had to reboot XMIS.


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Submitted on 2018 Mar 15 [5:14:55]