FRB121102-20221219-S001-R001-R-235630.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-19 14:56:32.600 16.762 +/- 0.489 (3sigma) 16.161 +/- 0.489 (5sigma) 15.346 +/- 0.491 (10sigma)