Mrk_501-20210420-S001-R001-B-024427.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-20 17:44:27 13.30 0.014

Mrk_501-20210420-S001-R001-I-024819.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-20 17:48:19 14.28 0.013

Mrk_501-20210420-S001-R001-R-024704.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-20 17:47:04 13.79 0.013

Mrk_501-20210420-S001-R001-V-024550.fts