Dome tracking stoppage
Problem(s) Encountered:
The only issue was that during one of our 5 min exposures, the image looked trailed, and when checking the guiding...
Filter wheel motion failure
Problem(s) Encountered:
Found one strange error where MIS said "Move failed: check filter wheel and reset" It seemed to recover by trying...
Dome fugue state at closure
Problem(s) Encountered:
When attempting to home the dome, the dome did not stop at the right position and instead kept going round and round....
12 minutes off in HA
Problem(s) Encountered:
On the way to the first target of the night the telescope didn’t complete the slew; the Point button turned red near...
Frozen domes don't move
Problem(s) Encountered:
...the dome didn't budge when I tried to acquire my first target. I suspect it's iced up, but did not look into...
Telescope server failure, port server reset
Problem(s) Encountered:
At the beginning of the night the TCS is not running. so can't open. Tried 'telescope stop' and 'telescope start'...
Owl disappeared, dome/telescope positioning error
Problem(s) Encountered:
During the exposure, the Owl suddenly died. Restart the Owl and can not connet to the controler. We decided to home...
Telescope server failure, no response to commands, socket not connected
Problem(s) Encountered:
TCS control Panel stop updating.After restart TCS, it can not run any command and show ERROR: Could not send command....
Telescope command failures
Problem(s) Encountered:
I tried pointing at the same part of the sky as last night; I figuredpoint ha=-2:30:00 dec=04:30:00 nodomewould do...
Filter wheel motion failure
Problem(s) Encountered:
Filter wheel was stuck, power cycled filter wheel.
Solution:
Noting that filter wheel control...
1.3m Trouble Reports & Solutions
Recent trouble reports for the McGraw-Hill 1.3m 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 (2026Jun09)
•McGraw-Hill 1.3m Trouble Report Database (2026Jun09)