In order to characterize exoplanets around nearby stars, upcoming and proposed space telescopes are being designed with high contrast coronagraph instruments. Coronagraphs are generally designed to suppress only a single, on-axis star, but there are numerous binary star systems within our observational range. Multi-star wavefront correction (MSWC) is a technique that leverages non-redundant control modes around two stars to create a single dark zone in the image. In this paper we describe the implementation of MSWC in the Decadal Survey Testbed (DST) at the Jet Propulsion Laboratory. We modified the open-source FALCO software package, which is used to run the DST, to enable sensing and control of multiple sources. To enable MSWC at large (i.e., super-Nyquist) angular separations, we modified the DST calibration procedure. We report our best achieved contrast and planned modifications to complete our future milestones.
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