4U_1957p115-20181110-S001-R001-B-201138.fts
No WCS


4U_1957p115-20181110-S001-R001-I-200909.fts
No WCS


4U_1957p115-20181110-S001-R001-R-200754.fts
upper limit SN vs magnitude graph from USNO-B1 catalog
UT upper limit
2018-11-10 11:07:56 14.492 +/- 1.505 (3sigma)
13.744 +/- 1.510 (5sigma)
12.729 +/- 1.520 (10sigma)


4U_1957p115-20181110-S001-R001-V-201023.fts
No WCS