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[ascl:2306.056] PSFMachine: Toolkit for doing PSF photometry

PSFMachine creates models of instrument effective Point Spread Functions (ePSFs), also called Pixel Response Functions (PRFs). These models are then used to fit a scene in a stack of astronomical images. PSFMachine is able to quickly derive photometry from stacks of Kepler and TESS images and separate crowded sources.

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Keywords: NASA, Kepler, TESS, K2

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