MDM Trouble Report for 2014 Oct 16 Telescope: 2.4m Observer(s): Thorstensen (Dartmouth) Instrument: modspec + echelle CCD Problem(s) Encountered: The RA readout drifts upward by a second or so every 10 minutes, or even faster, making it difficult to maintain pointing. This is while guiding on a target, so it has nothing to do with the drive rate -- it's as if extra pulses are getting into the system. Telescope is usable, you just have to rezero coordinates frequently and be aware of possible large EW offsets when acquiring new targets. But it's annoying, especially since it was setting very well at the start of my run. ------------------------------ Submitted on 2014 Oct 17 [2:45:58]