FRB20190117A-20230101-S001-R001-R-185216.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2023-01-01 09:52:18.309 16.139 +/- 1.495 (3sigma) 15.496 +/- 1.498 (5sigma) 14.622 +/- 1.504 (10sigma)