[Astro-mdm-report] MDM 2.4m Observing Report for 2025 Mar 30

[Galayda Eric]

Since it sounded troubling enough, I had the observers move the dome off the electrical contacts until I arrived.  Came in and checked the switches with no issue.  Rotated the dome back to the contacts, no issue.  Opened the dome and drop leaf fully—no issues.  Closed the dropleaf and then the dome shutter—no issues.  So… no issues?  Not sure what happened when they tried to close.  Will cycle the dome shutter system again once the instrument change is completed but as the old saying goes: can’t fix what isn’t broken.

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ERIC GALAYDA 
Site Manager
MDM Observatory
950 N. Cherry Ave.          Ph. 520.318.8660
Tucson, AZ 85719           email: egalayda at umich.edu      
https://urldefense.com/v3/__http://mdm.kpno.noirlab.edu__;!!KGKeukY!xmKvHDaQ_h48AhZjW_jKxjNv11y5CaRzpxx60jlYgQP8Bb99wC9MX2t5nmECzE_9wnyian2OZFQELEvzZNyYxNKqxxQI49w$ 
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> On Mar 31, 2025, at 6:07 AM, obs24m--- via ASTRO-mdm-report <astro-mdm-report at lists.osu.edu> wrote:
> 
> MDM Observatory 2.4m Telescope Observing Report for 2025 Mar 30
> 
> Observer(s): Laura Hunter, Sasha Campana
> Institution(s): Dartmouth
> 
> Instrument: OSMOS
> 
> Worked for 9 hours (all night)
> Conditions were Photometric most of the night.
> Problems were encountered, see the separate trouble report for details.
> 
> Seeing and Weather:
>   Beg: Seeing 1.0 arcsec, Clear, Winds Moderate
>   Mid: Seeing 1.0 arcsec, Clear, Winds Moderate
>   End: Seeing 1.0 arcsec, Clear, Winds Moderate
> 
> Observing Summary:
> 
> Collected lots of spectra of low surface-brightness galaxies using OSMOS. 
> The winds were in the high teens with gusts up to 30 during the night.
> The dome slit main shutter will not close unless holding the close button until it's fully shut. 
> The dome main shutter is fully closed, but the motor seems to be going even after it has fully shut.
> 
> ------------------------------
> 
> Submitted on 2025 Mar 31 [6:07:43]
> 
> Observer Contact Email: laura.c.hunter at dartmouth.edu (Note: will not appear in versions of the report archived online)
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