OJ_287-20210426-S001-R001-B-193251.fts

Only less than 50 stars was detected

OJ_287-20210426-S001-R001-I-193710.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-26 10:37:12 16.12 0.080

OJ_287-20210426-S001-R001-R-193546.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-26 10:35:47 15.50 0.105

OJ_287-20210426-S001-R001-V-193419.fts

Only less than 50 stars was detected