FRB20190117A-20221118-S001-R001-R-214211.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-11-18 12:42:13.880 15.510 +/- 3.057 (3sigma) 14.765 +/- 3.067 (5sigma) 13.756 +/- 3.085 (10sigma)