ATLAS17myk outburst YYYYMMDD(UT) mag observer 20220828.4538 21.848zg (Zwicky Transient Facility (Masci et al., 2019)) 20220828.4758 21.660zr (Zwicky Transient Facility (Masci et al., 2019)) 20220907.4434 21.200zr (Zwicky Transient Facility (Masci et al., 2019)) 20221221.2137 16.809zg (ZTF Alert DC mag (Masci+ 2019)) 20221221.2142 16.783zg (ZTF Alert DC mag (Masci+ 2019)) 20221221.2411 16.949zr (ZTF Alert DC mag (Masci+ 2019)) 20221221.2845 16.928zr (ZTF Alert DC mag (Masci+ 2019))