Hi Patrick, I just got my minor planet observatory code today (G87)! - so I hope you don't mind a question or two. I saw your question on the mpml list and it made me curious. You were asking about problems with the MP images streaking higher than a certain magnitude. I thought it was okay to report the mid-point of the observation? I.e. it doesn't matter if there is some streaking if you get the mid-point position and time (or an end-point position and time). Are you observing NEO's or doing photometry? Is that why this would be more important? I'm more interested in Kuiper belt objects and main belt asteroids - so streaking wouldn't be as big an issue. But, I'm curious about why you needed to avoid streaks. Clear skies, Dale. P.S. I hope you don't mind me posting this here - I'm guessing that there are others that are interested in minor planet observing.