FRB20181128A-20221214-S001-R001-R-001500.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-14 15:15:02.250 16.736 +/- 0.603 (3sigma) 16.187 +/- 0.604 (5sigma) 15.442 +/- 0.606 (10sigma)