[Astro-mdm-report] MDM 1.3m Observing Report for 2022 Mar 31

[Jules Paul Halpern]

I happened to be awake, so I turned the dome lamp on, looked at the
telescope,
and found that it was not pointing at zenith.
I put the telescope to zenith by eye, zeroed the tilt meters and zeroed the
coordinates.  It should be ready
for observing again.  Possibly a fine adjustment of the pointing will be
needed.

-Jules-


On Fri, Apr 1, 2022 at 3:01 AM obs13m--- via ASTRO-mdm-report <
astro-mdm-report at lists.osu.edu> wrote:

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> MDM Observatory 1.3m Telescope Observing Report for 2022 Mar 31
>
> Observer(s): Qiong Li
> Institution(s): UMICH
>
> Instrument: Nellie
>
> Worked for 6 hours (first half of the night)
> Conditions were Photometric most of the night.
> No equipment or software problems were encountered.
>
> Seeing and Weather:
>    Beg: Clear, Winds Calm
>    Mid: Clear, Winds Calm
>    End: Clear, Winds Calm
>
> Observing Summary:
>
> We lost the pointing at the beginning of the night observation. The
> telescope position ('MDM1.3m Control panel') is not same as the target's
> position. I tested another target, and it still has RA_OFFSET~1m18s,
> DEC_OFFSET~7'0''.
> Then I point the telescope to the zenith, without tracking and enter:
> zero ra=(LST) dec=31:57:12 equinox=2022
> It still doesn't work. Finally, I found the value for tilt sensor motion
> cannot change when I move the hand paddle. It is always at [-491,+458] at
> zenith. Next, I tried the offset (in the telescope control panel). The
> value for motion still didn't change. We close the dome at 12:00 am LST.
>
> ------------------------------
>
> Submitted on 2022 Apr 1 [0:00:32]
>
> Observer Contact Email: xqli at umich.edu (Note: will not appear in versions
> of the report archived online)
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