ASASSN-18ir likely superoutburst Likely supercycle around 1.5 yr (ATLAS+ASAS-SN ver2) YYYYMMDD(UT) mag observer 20230428.0703 <17.385g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230428.1142 <18.156g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230501.9907 16.861o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230501.9936 16.933o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.0000 16.937o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230502.1163 16.377g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230503.1351 16.307g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230503.1464 16.696o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230503.1491 16.679o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021)) 20230503.1546 16.749o (ATLAS Forced Photometry (Tonry+2018; Shingles+2021))