# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -0.91        -1.93         4.42  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg2_meta.txt 
       -1.00        -1.99         4.34  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg1_meta.txt 
       -0.53        -2.43         4.63  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg3_meta.txt 
       -1.27        -1.31         0.06  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20131022_1030010028648E00_1030010028828A00_2m_lsf_seg1_meta.txt 
        1.65        -0.12        -1.98  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141110_10200100360C8400_1020010035810F00_2m_lsf_seg1_meta.txt 
        0.22        -2.24        -1.57  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20160115_1020010049A3C600_1020010048677D00_2m_lsf_seg1_meta.txt 
        0.16         1.02         3.34  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20161106_10400100233AFC00_1040010024BD9D00_2m_lsf_seg1_meta.txt 
       -0.10         0.99         0.88  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20161108_1020010056767000_1020010058712700_2m_lsf_seg1_meta.txt 
        4.23        -5.44        -0.42  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20170102_102001005900A000_102001005B49CA00_2m_lsf_seg1_meta.txt 
        1.05        -2.15        -0.92  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170730_10300100700A0F00_103001006D7F8700_2m_lsf_seg1_meta.txt 
        5.49         2.42         1.74  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170930_1030010072891100_1030010071247900_2m_lsf_seg1_meta.txt 
       -0.45         3.81        -0.44  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20171109_10400100342D3B00_1040010034067000_2m_lsf_seg1_meta.txt 
       -0.12        -1.46         1.17  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20181110_102001007C05C800_102001007B7FB400_2m_lsf_seg1_meta.txt 
       -0.09        -3.62        -0.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20191022_102001008DB93000_1020010090BBB600_2m_lsf_seg1_meta.txt 
       -6.25         6.80        -1.39  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg6_meta.txt 
       -5.13         4.78        -1.31  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20200331_104001005ACF4C00_104001005AB98C00_2m_lsf_seg2_meta.txt 
        2.07         1.01         1.20  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200406_10300100A4A3CA00_10300100A4708900_2m_lsf_seg3_meta.txt 
       -1.17         2.18         0.53  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200406_10300100A4A3CA00_10300100A4708900_2m_lsf_seg2_meta.txt 
        2.31        -1.17        -0.87  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200406_10300100A492FA00_10300100A48D6100_2m_lsf_seg1_meta.txt 
        4.23         0.12        -7.54  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200605_10300100A62DE700_10300100A8D69A00_2m_lsf_seg1_meta.txt 
       -4.38         0.71        -5.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200621_10300100A883C000_10300100AA8DA200_2m_lsf_seg1_meta.txt