Unusual Hard X-Ray Flares Caught in NICER Monitoring of the Binary Supermassive Black Hole Candidate AT2019cuk/Tick Tock/SDSS J1430+2303 by Megan Masterson, Erin Kara, Dheeraj R. Pasham, Daniel J. D’Orazio, Dominic J. Walton, Andrew C. Fabian, Matteo Lucchini, Ronald A. Remillard, Zaven Arzoumanian, Otabek Burkhonov, Hyeonho Choi, Shuhrat A. Ehgamberdiev, Elizabeth C. Ferrara, Muryel Guolo, Myungshin Im, Yonggi Kim, Davron O. Mirzaqulov, Gregory S. H. Paek, Hyun-Il Sung, Joh-Na Yoon

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