DDE 39 possible superoutburst (Known SU UMa star) YYYYMMDD(UT) mag observer 20220220.517 <175C (Mitsutaka Hiraga) 20220222.539 <178C (Mitsutaka Hiraga) 20220223.542 <178C (Mitsutaka Hiraga) 20220224.4968 <172C (Masayuki Moriyama) 20220226.6103 <161C (Masayuki Moriyama) 20220304.823 158C (Jeremy Shears)