FRB20180814A-20230101-S001-R001-R-213549.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2023-01-01 12:35:51.689 16.411 +/- 0.630 (3sigma) 15.915 +/- 0.631 (5sigma) 15.242 +/- 0.633 (10sigma)