FRB20180814A-20221210-S001-R001-R-225737.fts
upper limit SN vs magnitude graph from USNO-B1 catalog
UT upper limit
2022-12-10 13:57:39.009
16.017 +/- 0.823 (3sigma)
15.516 +/- 0.824 (5sigma)
14.837 +/- 0.826 (10sigma)