Mrk_501-20210419-S001-R001-B-025012.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-19 17:50:12 13.42 0.015

Mrk_501-20210419-S001-R001-I-025414.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-19 17:54:14 14.30 0.014

Mrk_501-20210419-S001-R001-R-025259.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2021-04-19 17:52:59 13.78 0.014

Mrk_501-20210419-S001-R001-V-025142.fts