I was looking at my data from March 28 and saw what looked like another very slight projection along the terminator. So, I conferred with another planetary imager, Glenn Jolly of Phoenix, AZ, who imaged the same region three days later. We compared data and found that there may have been another “cloud” (assuming that’s what these things we’re looking at are, but it’s a good word for the sake of argument.) Note the images, below. Perhaps this is a seasonal phenomena on Mars and we’re just getting a better look at it, now that amateur imaging technology has advanced to allow us to see faint atmospheric features. We’ll leave that to the experts to opine on.
Here are the green light images. They suggest another projection, but are by no means conclusive.