3C273-20210219-S001-R001-B-022111.fts
Only less than 50 stars was detected


3C273-20210219-S001-R001-I-022501.fts
relative photometry graph from USNO-B1 catalog
Date UT magnitude mag_erorr
2021-02-19 17:25:02 13.76 0.007


3C273-20210219-S001-R001-R-022346.fts
Only less than 50 stars was detected


3C273-20210219-S001-R001-V-022230.fts
Only less than 50 stars was detected