### ctx ctx 0001 0003 /mnt/pdsdata/mro/ctx ###
/mnt/pdsdata/mro/ctx/diff_mrox/mrox_0001-0003/catalog/dataset.cat
/mnt/pdsdata/mro/ctx/diff_mrox/mrox_0001-0003/catalog/cumindex.lbl
/mnt/pdsdata/mro/ctx/diff_mrox/mrox_0001-0003/catalog/index.lbl
/mnt/pdsdata/mro/ctx/diff_mrox/mrox_0001-0003/catalog/index.tab
/mnt/pdsdata/mro/ctx/diff_mrox/mrox_0001-0003/catalog/voldesc.cat