OJ_248-20210217-S001-R001-B-231719.fts

Only less than 50 stars was detected

OJ_248-20210217-S001-R001-I-231329.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2021-02-17 14:13:30 16.072 +/- 1.639 (3sigma) 15.388 +/- 1.643 (5sigma) 14.461 +/- 1.651 (10sigma)

OJ_248-20210217-S001-R001-R-231446.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2021-02-17 14:14:47 16.527 +/- 1.273 (3sigma) 15.900 +/- 1.275 (5sigma) 15.050 +/- 1.280 (10sigma)

OJ_248-20210217-S001-R001-V-231603.fts