Mrk_501-20201118-S001-R001-B-174947.fts
No WCS


Mrk_501-20201118-S001-R001-I-175340.fts
Only less than 50 stars was detected


Mrk_501-20201118-S001-R001-R-175223.fts
Only less than 50 stars was detected


Mrk_501-20201118-S001-R001-V-175107.fts
No WCS