VER_J0521p211-20221231-S001-R001-B-223549.fts

Only less than 50 stars was detected

VER_J0521p211-20221231-S001-R001-I-223933.fts

Only less than 50 stars was detected

VER_J0521p211-20221231-S001-R001-R-223815.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2022-12-31 13:38:17.050 15.795 +/- 1.076 (3sigma) 15.281 +/- 1.078 (5sigma) 14.582 +/- 1.081 (10sigma)

VER_J0521p211-20221231-S001-R001-V-223703.fts