Ben Montet (UNSW) put up the bat symbol for a project to find outer Solar System objects using NASA TESS data. It was the scale of problem I wanted: A stack of postage stamps from eleanor and a reflex angular velocity vector (really parallax vector) for Sedna. The issue is all those other pesky stars, and asteroids on closer orbits! I did some exploratory data analysis, in which I detrended each image using a PCA of all the images. But at the same time, others did pixel-based detrending like in CPM and others did more traditional image differencing with a reference image. It's nice: In all methods, Sedna sticks out beautifully! The question is: What methods will be best for finding objects further out in the Solar System? These are harder because they are fainter, but also because they don't move as far relative to the stars in a month!
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