OJ_287-20210503-S001-R001-B-193931.fts

Only less than 50 stars was detected

OJ_287-20210503-S001-R001-I-194346.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-05-03 10:43:47 16.21 0.079

OJ_287-20210503-S001-R001-R-194219.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-05-03 10:42:20 15.07 0.146

OJ_287-20210503-S001-R001-V-194052.fts

Only less than 50 stars was detected