# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -1.52        -1.19        -4.54  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20100704_102001000D022300_102001000D8D8A00_2m_lsf_seg2_meta.txt 
       -2.73        -0.73        -2.65  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20100704_102001000D837B00_102001000D8D8A00_2m_lsf_seg2_meta.txt 
        2.16        -4.28        -1.47  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20100910_102001000E2D1D00_102001000ECBDC00_2m_lsf_seg2_meta.txt 
        2.78        -1.51         1.23  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140409_102001002E397000_102001002B5AE900_2m_lsf_seg1_meta.txt 
        4.39        -0.14         1.46  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140624_102001002E675C00_102001002FC4FB00_2m_lsf_seg1_meta.txt 
       -0.80        -0.69        -1.51  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20150411_102001003C8A9500_102001003C287300_2m_lsf_seg1_meta.txt 
       -0.56         0.05        -3.81  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160504_102001004E4BD500_102001004FD19200_2m_lsf_seg1_meta.txt 
       -0.10         1.80         0.04  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160805_102001005389E700_1020010053C0B100_2m_lsf_seg1_meta.txt 
       -0.30         1.20         0.45  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20170726_1040010030C23E00_10400100312DED00_2m_lsf_seg1_meta.txt 
        0.42        -1.72         1.40  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20170906_10200100657C3700_1020010064942100_2m_lsf_seg1_meta.txt 
        0.87         1.89         3.51  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180304_1030010079564400_103001007B9AEF00_2m_lsf_seg1_meta.txt 
        0.51         1.25         2.26  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180317_103001007A9E9000_103001007A991C00_2m_lsf_seg1_meta.txt 
        0.64         1.18         0.92  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180403_1030010078D1E500_103001007A705500_2m_lsf_seg1_meta.txt 
       -1.11         2.76        -0.89  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20190220_103001008AD07F00_103001008B550300_2m_lsf_seg1_meta.txt 
       -3.11        -0.68        -0.49  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20200305_10300100A3803F00_10300100A65C3C00_2m_lsf_seg1_meta.txt 
       -1.55         0.83         4.09  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20200327_10300100A4D2EC00_10300100A41B6500_2m_lsf_seg1_meta.txt