OG_050-20210220-S001-R001-B-204646.fts

No WCS

OG_050-20210220-S001-R001-I-205044.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2021-02-20 11:50:46 15.273 +/- 4.161 (3sigma) 14.422 +/- 4.177 (5sigma) 13.268 +/- 4.210 (10sigma)

OG_050-20210220-S001-R001-R-204928.fts

upper limit SN vs magnitude graph from USNO-B1 catalog

UT upper limit 2021-02-20 11:49:29 14.952 +/- 2.750 (3sigma) 14.288 +/- 2.757 (5sigma) 13.387 +/- 2.771 (10sigma)

OG_050-20210220-S001-R001-V-204804.fts

Only less than 50 stars was detected