MDM Trouble Report for 2007 Jan 2 Telescope: 2.4m Observer(s): K. Schlesinger (OSU) Instrument: CCDCOM Problem(s) Encountered: We initially had problems with the sizes of the two new filters for the 4in filter wheel. They were too large and prevented the wheel from turning well. Bob and Steve did some small modifications and determined that as long as you went one by one from filter to filter in the same direction, everything would be fine. After this was resolved we had problems pointing the telescope, most likely due to the fact that something was obscuring the middle of the CCD chip. Neither the guider nor RETROCAM were responsible for this. We reinitialized the filter wheel and moved RETROCAM and the guider in and out several times, which solved the mysterious obscuration problem. The hours lost were due to the obscuration problem, not the filter wheel problem. ------------------------------ Submitted on 2007 Jan 3 [7:33:13] NOTE: This trouble report replaces the previous report for 2007 Jan 2