OJ_287-20200406-S001-R001-B-220533.fts

Only less than 50 stars was detected

OJ_287-20200406-S001-R001-I-220924.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2020-04-06 13:09:25 0.033

OJ_287-20200406-S001-R001-R-220808.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2020-04-06 13:08:09 0.031

OJ_287-20200406-S001-R001-V-220652.fts