@Cliff_Beauland, I'm more experienced with visual and CCD data that has a greater Y-axis deflection, I grant you. Having said that, no, I can't see ANY patter in that light curve, especially, specifically, what the computer is showing there.
From what I've been able to see, these type of examples are not very rare. Based on the fact that we're dealing with deflections of a couple of percentage points, especially given error bars, It's not easy, no, but I agree with you here: I see no pattern there.
In these cases I'd like to get some indication of where this result comes from. Is this an independent computer analysis of the data from some time ago? Is this a human analysis of the data, and if so, how?
I have to believe - and I grant you I AM assuming this, I don' KNOW - that the images we're being given now - today, and for the next few days - are calibration images for both us and the system. If that assumption is correct, I would like to know how this particular image is a dip, yes.
It's not you.
Alan Mathison, C1