FRB121102-20221228-S001-R001-R-232529.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-28 14:25:31.760 16.434 +/- 0.522 (3sigma) 15.865 +/- 0.523 (5sigma) 15.092 +/- 0.525 (10sigma)