FRB20190222A-20221116-S001-R001-R-231831.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-11-16 14:18:33.060 15.834 +/- 1.819 (3sigma) 15.194 +/- 1.823 (5sigma) 14.326 +/- 1.831 (10sigma)