Mrk_501-20200823-S001-R001-B-221416.fts

Only less than 50 stars was detected

Mrk_501-20200823-S001-R001-I-221819.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2020-08-23 13:18:20 0.014

Mrk_501-20200823-S001-R001-R-221702.fts

relative photometry graph from USNO-B1 catalog

Date UT magnitude mag_erorr 2020-08-23 13:17:03 0.023

Mrk_501-20200823-S001-R001-V-221544.fts

Only less than 50 stars was detected