tokens: ACKNOWLEDGEMENTS We thank the referee for a very helpful report. The authors would like to thank the Argus instrument team from the Stanford University, Caltech, JPL, University of Maryland, University of Miami, and the Green Bank Observatory for their efforts on the instrument and software that have made this work possible. The Argus instrument construction was funded by the National Science Foundation (NSF) ATI-1207825. Green Bank Observatory is a facility of the National Science Foundation and is operated by Associated Universities, Inc. CYC and ZYL acknowledge support from NSF AST-1815784. ZYL is supported in part by the National Aeronautics and Space Administration (NASA) 80NSSC18K1095 and NNX14AB38G and NSF AST-1716259. AIH and JL acknowledge support from NSF AST-1615647. This research made use of astropy , 7 a community-developed core python package for Astronomy (Astropy Collaboration 2013 , 2018 ).
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