[Astro-mdm-trouble] MDM Trouble Report for 2020 Feb 19

Galayda Eric egalayda at umich.edu
Thu Feb 20 14:38:39 EST 2020


Blown drive fuse.  Replaced and all seems ok.

****************************************************** 
ERIC GALAYDA 
Site Manager
MDM Observatory
950 N. Cherry Ave.          Ph. 520.318.8660/1 
Tucson, AZ 85719           email: egalayda at umich.edu      
http://mdm.kpno.noao.edu
******************************************************

> On Feb 20, 2020, at 4:42 AM, obs24m--- via ASTRO-mdm-trouble <astro-mdm-trouble at lists.osu.edu> wrote:
> 
> MDM Trouble Report for 2020 Feb 19
> 
> Telescope: 2.4m
> Observer(s): David Schiminovich, Nicole Melso (Columbia University)
> Instrument: CHaS
> 
> Problem(s) Encountered:
> When we began astronomical observations, we slewed to the nearest bright star and noticed that it had not been acquired.
> 
> After trying a few commanded slews to other positions near the zenith, we
> noticed that the brake was engaged, and was a likely culprit for our pointing issues.
> 
> Among the problems we had noticed was that slews were not being properly completed (as one might expect, given that the brake was engaged!)
> 
> Since we were near zenith, we sent a command to disengage the brake.
> 
> At that point the telescope slewed to a position at dec +88 and hour angle ~2.
> We don't know why this occurred, as we had not entered any targets with coordinates near that region.
> 
> Subsequently the telescope would not respond to any commands to move (slews, zenith command, paddle)
> 
> We tried restarting the TCS program but also no change.  Eventually we decided to end observations for the night.
> 
> 
> ------------------------------
> 
> Submitted on 2020 Feb 20 [4:42:56]
> 
> Observer Contact Email: ds at astro.columbia.edu
> (Note: thiswill not appear in versions of the trouble report archived online)
> _______________________________________________
> ASTRO-mdm-trouble mailing list
> ASTRO-mdm-trouble at lists.osu.edu
> https://lists.osu.edu/mailman/listinfo/astro-mdm-trouble

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osu.edu/pipermail/astro-mdm-trouble/attachments/20200220/e044f4dd/attachment.html>


More information about the ASTRO-mdm-trouble mailing list