OJ_248-20190313-S001-R001-B-232044.fts

Only less than 50 stars was detected

OJ_248-20190313-S001-R001-I-231659.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2019-03-13 14:17:00 16.178 +/- 1.392 (3sigma) 15.571 +/- 1.395 (5sigma) 14.746 +/- 1.400 (10sigma)

OJ_248-20190313-S001-R001-R-231815.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2019-03-13 14:18:16 16.581 +/- 0.875 (3sigma) 15.965 +/- 0.876 (5sigma) 15.129 +/- 0.879 (10sigma)

OJ_248-20190313-S001-R001-V-231930.fts