MDM Trouble Report for 2018 Mar 15

Telescope: 1.3m
Observer(s): Jules Halpern (Coluimbia)
Instrument: Templeton

Problem(s) Encountered:
At the beginning of the night I noticed a large number of noise
columns in bias frames, but at a very low level of counts.
This happened a few years ago, but I don't remember if there
was a definite cure.  Maybe something with the fiber optic?
I put an example up on ds9 if you want to see it (image 63).
At the end of the night I did a couple more bias frames and the
effect had largely gone away (those are images 400-401 in the
same directory).

Had to restart telescope to close main dome slit at the end of
the night.

------------------------------

Submitted on 2018 Mar 16 [6:09:34]