Filter wheel motion failure
Problem(s) Encountered:
Filter wheel was stuck, power cycled filter wheel.
Solution:
Noting that filter wheel control...
Guide camera failure
Problem(s) Encountered:
Star guiding problem: the position of the guide star in the workspce2 is offset with about 2000 in x axis, 1000 in...
Owl disappearance; mdmarc2 issue
Problem(s) Encountered:
1) The OWL window disappeared and could not be restarted.2) Connections to /data hung up (see Desktop windows).Other...
Dome rotation failure
Problem(s) Encountered:
When I clicked dome->enable doe tracking->apply , there was an error dome axis=m_az fatal following error . It didn't...
Finder mirror assembly sticking
Problem(s) Encountered:
Issues with the finder mirror motor sticking making it appear as though no light was reaching the ccd. A good test...
Pointing errors far to the north
Problem(s) Encountered:
I tried moving with commands from the MDM13 control system - point ra=10:01:33 dec=+74:24:45 , or actually the J2025...
Workstation workspace swap glitch
Problem(s) Encountered:
For some reason, you can't switch from one desktop to the other on the 1.3m machine by clicking the little cartoon...
Dome fails to open, TCS issues
Problem(s) Encountered:
Having trouble with the TCS. Restarted TCS but dome slit won’t open. TCS RA is off by 12 minutes of time in RA while...
JSkyCalc disconnect
Problem(s) Encountered:
When I slew the telescope to the target, it said Slew: unknown status! and I could not find the pointing of the telescope...
Internet weirdness and network connected hardware failures
Problem(s) Encountered:
This is a weird one. There have been internet issues stemming from the summit since late morning. While it now appears...
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 (2025Jan21)
•McGraw-Hill 1.3m Trouble Report Database (2025Jan21)