# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -1.12        -2.80         4.19  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg2_meta.txt 
       -0.71        -3.14         4.29  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg1_meta.txt 
       -0.39        -2.70         4.63  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg3_meta.txt 
       -1.46        -1.23         0.16  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20131022_1030010028648E00_1030010028828A00_2m_lsf_seg1_meta.txt 
        2.27        -1.18        -1.48  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141110_10200100360C8400_1020010035810F00_2m_lsf_seg1_meta.txt 
        1.29        -2.97        -1.07  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20160115_1020010049A3C600_1020010048677D00_2m_lsf_seg1_meta.txt 
       -0.11         0.88         3.81  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20161106_10400100233AFC00_1040010024BD9D00_2m_lsf_seg1_meta.txt 
        0.57        -0.50         1.85  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20161108_1020010056767000_1020010058712700_2m_lsf_seg1_meta.txt 
        4.89        -6.22        -0.01  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20170102_102001005900A000_102001005B49CA00_2m_lsf_seg1_meta.txt 
        1.41        -2.69        -0.70  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170730_10300100700A0F00_103001006D7F8700_2m_lsf_seg1_meta.txt 
        5.42         2.07         1.64  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170930_1030010072891100_1030010071247900_2m_lsf_seg1_meta.txt 
        0.52         0.46         1.92  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20171007_104001003375BE00_1040010032A99400_2m_lsf_seg3_meta.txt 
        0.94        -0.00         2.04  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20171007_104001003375BE00_1040010032A99400_2m_lsf_seg2_meta.txt 
        0.44         3.14         0.29  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20171109_10400100342D3B00_1040010034067000_2m_lsf_seg1_meta.txt 
       -0.08        -2.12         1.57  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20181110_102001007C05C800_102001007B7FB400_2m_lsf_seg1_meta.txt 
       -0.56        -3.87        -0.10  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20191022_102001008DB93000_1020010090BBB600_2m_lsf_seg1_meta.txt 
       -2.16         3.79        -1.33  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg5_meta.txt 
       -2.27         3.70        -1.53  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg6_meta.txt 
       -2.44         3.49        -1.16  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg7_meta.txt 
       -2.82         3.72        -1.41  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg2_meta.txt 
        4.05        -0.13        -8.14  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200605_10300100A62DE700_10300100A8D69A00_2m_lsf_seg1_meta.txt 
       -3.70         0.39        -5.13  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200621_10300100A883C000_10300100AA8DA200_2m_lsf_seg1_meta.txt 
       -1.81         5.67        -2.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20200629_1020010098908000_102001009AEA7800_2m_lsf_seg2_meta.txt 
       -2.16         2.23        -1.92  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20200629_1020010098908000_102001009AEA7800_2m_lsf_seg1_meta.txt