FRB20180814A-20221222-S001-R001-R-234640.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-22 14:46:42.140 16.487 +/- 0.630 (3sigma) 15.989 +/- 0.631 (5sigma) 15.313 +/- 0.633 (10sigma)