VER_J0521p211-20221230-S001-R001-B-231112.fts

No WCS

VER_J0521p211-20221230-S001-R001-I-231508.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-30 14:15:10.108 15.779 +/- 0.884 (3sigma) 15.268 +/- 0.886 (5sigma) 14.575 +/- 0.888 (10sigma)

VER_J0521p211-20221230-S001-R001-R-231356.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-30 14:13:57.500 16.427 +/- 0.660 (3sigma) 15.921 +/- 0.661 (5sigma) 15.235 +/- 0.662 (10sigma)

VER_J0521p211-20221230-S001-R001-V-231229.fts