mdm13ws1 woes (and potential issues with too many VNC connections)

Monday, March 29, 2021

Problem(s) Encountered:

Was flipping between an IRAF terminal windows when we lost the ability to press buttons on all of the windows. Ended...

Guide probe motion failure

Sunday, March 14, 2021

Problem(s) Encountered:

The guider focus did not budge when commanded.  The guider does surprisingly well on not-too-grossly out-of-focus...

Issues pointing far to the north

Thursday, February 4, 2021

Problem(s) Encountered:

Telescope errors occurred pointing at DEC > 74 degrees. The telescope would not slew from JSkyCalc even though the...

Guider/slit-viewer settings confusion

Thursday, November 19, 2020

Problem(s) Encountered:

After taking a list of Xe lamp spectra, I clicked the finder  out  and the  Xe  button (to turn off the lamp) on the...

Templeton warming up

Tuesday, November 10, 2020

Problem(s) Encountered:

CCD temperature was high (> -50C) during night. (cf. outside T~4C, RH 20~30%)  At ~2:20am, CCD temp. reached 0C.LN2...

Tilt Sensor Unexpected Value

Monday, November 2, 2020

Problem(s) Encountered:

Number of E-W tilt sensor is abnormal at zenith position. (Telescope pointing was correct in all target positions.)

Fail to Send "Errors"

Tuesday, February 25, 2020

Problem(s) Encountered:

Slew error and Tracking turned off when telescope move to a target in wind direction.


Owl File-Saving Issue

Wednesday, February 19, 2020

Problem(s) Encountered:

There was an OWL issue at ~8pm.  Image could not saved.


Reboot mdmarc2 PC.

Issues Closing the Dome

Saturday, November 2, 2019

Problem(s) Encountered:

Trouble homing and closing the dome at the end of the night.


Dome wasn’t homed and...

High Declination Pointing Issues

Saturday, October 12, 2019

Problem(s) Encountered:

I was unable to point the telescope to a target near the meridian at Dec=+79. I saw this at positions both east and...


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 (2020Mar06)

McGraw-Hill 1.3m Trouble Report Database (2020Mar06)

Click Here for the Full Archive