# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        1.81         2.39        -0.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20120715_102001001CEBE600_102001001B0D2000_2m_lsf_v030000//WV01_20120715_102001001CEBE600_102001001B0D2000_2m_lsf_seg3_meta.txt 
        0.20         0.21        -2.06  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20130521_102001002210A400_10200100237D6D00_2m_lsf_v030000//WV01_20130521_102001002210A400_10200100237D6D00_2m_lsf_seg1_meta.txt 
       -0.29        -3.05        -1.60  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20180521_104001003C38F600_104001003B41EE00_2m_lsf_v030400//WV03_20180521_104001003C38F600_104001003B41EE00_2m_lsf_seg1_meta.txt 
       -0.24         0.48         2.84  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20190628_103001009534C400_103001009561DE00_2m_lsf_v040101//WV02_20190628_103001009534C400_103001009561DE00_2m_lsf_seg1_meta.txt 
       -1.49        -0.02         1.25  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20200518_1020010095063200_1020010096097100_2m_lsf_v040203//WV01_20200518_1020010095063200_1020010096097100_2m_lsf_seg1_meta.txt