2000 Trouble Log

Dec01 - Compressor turned off

Nov14 - Replace slit drive motor.

Nov13 - Slit opener dead.

Nov09 - Filter wheel stepper motor coil left on. Problem traced to fault in stepper driver.

Nov06 - Rotate back plate back to normal. Modify secondary control software to minimize runaways.

Nov02 - Adjust Thirty inch primary helping collimation.

Oct25 - Temporary compressor installed.

Oct24 - Compressor in the shop.

Oct20 - Catastrophic failure 11:36 AM of compressor.

Oct19 - Pump and purge. Restart cooldown.

Oct18 - stop cooldown.

Oct17 - 10:50 stop cooldown. Pump out. Restart cooldown.

Oct12 - start cooldown

Oct11 - pump all day.

Oct10 - stop cooldown.

Oct06 - start cooldown.

Oct05 - Install Science chip in ircamera start pumping. Turn R filter on CCD camera upside down.

Oct04 - Remove home jumper from focus circuit.

Oct03 - Add capacitors to focus circuit.

Oct02 - Remove IR camera. Install R filter for Photometrics CCD.

Sep30 - Replace Photometrics shutter. Change qimage to nimage to work around strange bug.

Sep29 - Blast air over Photometrics shutter; it is working for now. IRCam cooler turned off. Telescope limits adjusted HA=+/- 2.5 Hours Dec=+65 -> -12 degrees.

Sep28 - Photometrics is now default CCD in tserver. UGAstro cluster enabled in tserver.

Sep27 - Flip mirror set screw tightened and angles changed. Photometrics CCD mounted.

Sep26 - Multiplexer mounted cooldown started.

Jan28 - Cooler returned rebuilt model 21 and absorber replaced.


Leuschner Observatory Index