RA motion failure (mechanically seized... sort of) x2

Sunday, February 4, 2024

Problem(s) Encountered:

Odd behavior with RA drive when switching targets and end of night failure. When trying to slew to a new target we...

RA motion failure (mechanically seized)

Thursday, January 18, 2024

Problem(s) Encountered:

I lost the guide star abruptly on my very last standard of the night, and attributed it to the very bright sky or...

Mirror cover [close] failure

Friday, January 12, 2024

Problem(s) Encountered:

At the end, the mirror cover would not close when commanded with the button on the MIS gui. I closed them using the...

Guide probe motion failure (y-axis)

Thursday, January 11, 2024

Problem(s) Encountered:

It seems like a limit switch of the Y direction of the guide probe failed (since it is the same thing that happened...

MAJOR RA motion failure

Tuesday, January 9, 2024

Problem(s) Encountered:

About halfway through the night, the telescopebegan to lose guiding, with occasional small shifts in(mainly) RA. The...

Weather station issues

Tuesday, September 12, 2023

Problem(s) Encountered:

I was blindsided by fog because the humidity sensor was evidently reading far too low.  We really need a reliable humidity...

Dome motion failure (motors)

Thursday, June 29, 2023

Problem(s) Encountered:

Again, the dome worked for the first couple of targets and, this time, refused to move in response to a slew.  It...

Prospero hangup

Monday, June 26, 2023

Problem(s) Encountered:

Everything ran normally for the first target (a standard star) but partway through the first science exposure, Prospero...

Image Saturation (4K)

Saturday, June 11, 2022

Problem(s) Encountered:

The problem arose when I was trying to acquire field/slit images so I could align them in my effort to take spectra...

Dome/Telescope Synchronization Issue

Friday, June 10, 2022

Problem(s) Encountered:

The dome and the telescope were not synchronized as I was changing positions to targets. I believe the problem was...


2.4m Trouble Reports & Solutions

Recent trouble reports for the Hiltner 2.4m telescope.  Note that you may find it worthwhile to peruse the 2.4m reports as well in case your problem is instrument-related.

Scroll down for a link to the complete archives.

To open a simple and searchable database containing all archived trouble report solutions, click on the following links.  While there are individual links for each telescope, it is worthwhile to search both databases in the event that you experience trouble:

Hiltner 2.4m Trouble Report Database (2024Feb16)

McGraw-Hill 1.3m Trouble Report Database (2024Feb16)

Click Here for the Full Archive