MDM Trouble Report for 2016 Dec 04 Telescope: 2.4m Observer(s): Douglas, Nunez (Columbia Unviersity) Instrument: ModSpec/Echelle Problem(s) Encountered: The ModSpec/Echelle shutter is not working. When we started taking calibration files at the beginning of the night, all of the images came out like bias frames. The open shutter box was checked, and we also tried using the open/close shutter button within OWL. We also restarted OWL, which did not solve the problem. With Jules Halpern's help over email, we troubleshot issues with something else blocking the slit, and determined that it had to be the shutter. Eric called and offered two options: power-cycling the shutter electronics control box or unplugging it from the detector and throwing the shutter open completely for the whole night. We did power-cycle the control box, but this didn't fix the issue. We decided that we don't want to mess with the electronics or deal with the always-open shutter, so we called it a night and will wait for the staff to look at the electronics tomorrow. ------------------------------ Submitted on 2016 Dec 4 [21:28:28]