OJ_248-20201219-S001-R001-B-023744.fts

Only less than 50 stars was detected

OJ_248-20201219-S001-R001-I-023349.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2020-12-19 17:33:51 15.957 +/- 1.202 (3sigma) 15.353 +/- 1.204 (5sigma) 14.532 +/- 1.209 (10sigma)

OJ_248-20201219-S001-R001-R-023513.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2020-12-19 17:35:14 15.615 +/- 0.671 (3sigma) 15.204 +/- 0.672 (5sigma) 14.648 +/- 0.673 (10sigma)

OJ_248-20201219-S001-R001-V-023629.fts