3C446-20210104-S001-R001-B-180644.fts
Only less than 50 stars was detected


3C446-20210104-S001-R001-I-181035.fts
upper limit SN vs magnitude graph from USNO-B1 catalog
UT upper limit
2021-01-04 09:10:36
15.320 +/- 2.041 (3sigma)
14.656 +/- 2.046 (5sigma)
13.755 +/- 2.056 (10sigma)


3C446-20210104-S001-R001-R-180918.fts
Only less than 50 stars was detected


3C446-20210104-S001-R001-V-180802.fts
Only less than 50 stars was detected