# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        0.36        -0.12        -0.88  /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 
        2.84        -1.82        -2.34  /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 
       -0.36         4.08         5.22  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV02_20170616_103001006ACF5B00_103001006B66DE00_2m_lsf_v040101//WV02_20170616_103001006ACF5B00_103001006B66DE00_2m_lsf_seg1_meta.txt 
        0.77        -2.70        -1.96  /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 
        0.18         0.86         2.46  /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 
       -4.74         0.00        -0.50  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20200506_104001005B832C00_104001005A883700_2m_lsf_v040203//WV03_20200506_104001005B832C00_104001005A883700_2m_lsf_seg3_meta.txt 
       -2.44         2.10        -2.39  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20200506_104001005B832C00_104001005A883700_2m_lsf_v040203//WV03_20200506_104001005B832C00_104001005A883700_2m_lsf_seg1_meta.txt 
        3.37        -2.41         0.39  /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