4C_31o03-20190129-S001-R001-B-200623.fts
Only less than 50 stars was detected


4C_31o03-20190129-S001-R001-I-201010.fts
Only less than 50 stars was detected


4C_31o03-20190129-S001-R001-R-200853.fts
upper limit SN vs magnitude graph from USNO-B1 catalog
UT upper limit
2019-01-29 11:08:54
15.343 +/- 2.068 (3sigma)
14.637 +/- 2.073 (5sigma)
13.678 +/- 2.084 (10sigma)


4C_31o03-20190129-S001-R001-V-200739.fts
Only less than 50 stars was detected