FRB20180814A-20221119-S001-R001-R-002010.fts
upper limit SN vs magnitude graph from USNO-B1 catalog
UT upper limit
2022-11-19 15:20:12.210
15.049 +/- 1.781 (3sigma)
14.529 +/- 1.783 (5sigma)
13.822 +/- 1.789 (10sigma)