FRB121102-20230102-S001-R001-R-225645.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2023-01-02 13:56:47.700 15.263 +/- 1.331 (3sigma) 14.601 +/- 1.334 (5sigma) 13.704 +/- 1.341 (10sigma)