FRB20181128A-20221229-S001-R001-R-231739.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-29 14:17:41.929 16.795 +/- 0.736 (3sigma) 16.224 +/- 0.737 (5sigma) 15.448 +/- 0.740 (10sigma)