Mrk_421-20210423-S001-R001-B-232702.fts
No WCS


Mrk_421-20210423-S001-R001-B-233219.fts
No WCS


Mrk_421-20210423-S001-R001-B-233530.fts
No WCS


Mrk_421-20210423-S001-R001-I-233101.fts
No WCS


Mrk_421-20210423-S001-R001-I-233443.fts
No WCS


Mrk_421-20210423-S001-R001-I-233653.fts
No WCS


Mrk_421-20210423-S001-R001-R-232944.fts
No WCS


Mrk_421-20210423-S001-R001-R-233356.fts
No WCS


Mrk_421-20210423-S001-R001-R-233627.fts
No WCS


Mrk_421-20210423-S001-R001-V-232824.fts
No WCS


Mrk_421-20210423-S001-R001-V-233308.fts
Only less than 50 stars was detected


Mrk_421-20210423-S001-R001-V-233558.fts
No WCS