# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        0.01         0.48        -3.18  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20130711_1020010026CAB900_1020010021AA1500_2m_lsf_v030001//WV01_20130711_1020010026CAB900_1020010021AA1500_2m_lsf_seg1_meta.txt 
        1.68         0.58         0.30  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20130811_10300100266B3B00_10300100257AF200_2m_lsf_v030100//WV02_20130811_10300100266B3B00_10300100257AF200_2m_lsf_seg1_meta.txt 
       -0.24        -0.72         0.32  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20150606_104001000CD59000_104001000C9AD000_2m_lsf_v030001//WV03_20150606_104001000CD59000_104001000C9AD000_2m_lsf_seg1_meta.txt 
        0.65         0.80        -2.76  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20170621_103001006C97FD00_103001006A75EE00_2m_lsf_v040002//WV02_20170621_103001006C97FD00_103001006A75EE00_2m_lsf_seg1_meta.txt 
       -1.57        -0.58         0.40  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20170621_102001006231AC00_1020010063AB9600_2m_lsf_v030208//WV01_20170621_102001006231AC00_1020010063AB9600_2m_lsf_seg1_meta.txt 
       -0.62        -0.69         4.40  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20190826_10300100998FF700_1030010098A4EE00_2m_lsf_v040101//WV02_20190826_10300100998FF700_1030010098A4EE00_2m_lsf_seg1_meta.txt 
       -0.73        -1.36         0.02  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20190826_104001005018ED00_1040010050462000_2m_lsf_v040101//WV03_20190826_104001005018ED00_1040010050462000_2m_lsf_seg1_meta.txt 
        0.82         1.50         0.49  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20190827_1030010097593B00_1030010098A35F00_2m_lsf_v040101//WV02_20190827_1030010097593B00_1030010098A35F00_2m_lsf_seg1_meta.txt