FRB20181128A-20221225-S001-R001-R-233956.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-25 14:39:58.340 16.655 +/- 0.785 (3sigma) 16.076 +/- 0.787 (5sigma) 15.289 +/- 0.789 (10sigma)