MDM Trouble Report for 2013 Mar 10 Telescope: 2.4m Observer(s): McGraw (Ohio University) Instrument: CCDS Problem(s) Encountered: When trying to take a dome flat with the flat lamp, the lamp was barely illuminating the detector. I was working from ~3200 - 4800 angstroms with the grating, taking a 600 second exposure with the flat lamp. The count levels are usually ~10 000 for this exposure, but I was getting ~200 counts. I tried turning off the lamp and back on, and moving the finder out and in to see if this was the issue. I also took Ar and Ne arcs, and these behaved normally. ------------------------------ Submitted on 2013 Mar 11 [6:00:59]