FRB121102-20221226-S001-R001-R-232813.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-26 14:28:15.720 16.465 +/- 0.541 (3sigma) 15.879 +/- 0.542 (5sigma) 15.083 +/- 0.543 (10sigma)