# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -0.85        -3.32         2.59  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg2_meta.txt 
       -0.74        -2.78         2.33  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg1_meta.txt 
       -0.66        -3.01         3.11  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg3_meta.txt 
       -1.52        -2.12        -0.98  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20131022_1030010028648E00_1030010028828A00_2m_lsf_seg1_meta.txt 
        3.46        -2.67        -3.08  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141110_10200100360C8400_1020010035810F00_2m_lsf_seg1_meta.txt 
        1.03         3.50         1.96  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg3_meta.txt 
        1.04         3.63         2.35  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg1_meta.txt 
        0.98         3.53         2.37  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg2_meta.txt 
       -0.61        -1.50        -2.73  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141227_10200100361D1A00_10200100372EA900_2m_lsf_seg1_meta.txt 
       -2.27         0.56        -0.21  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141230_103001003C1FC200_103001003B488C00_2m_lsf_seg1_meta.txt 
        2.10        -3.82        -2.45  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20160115_1020010049A3C600_1020010048677D00_2m_lsf_seg1_meta.txt 
       -0.02         0.63         2.10  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20161106_10400100233AFC00_1040010024BD9D00_2m_lsf_seg1_meta.txt 
        0.64        -1.30         0.15  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20161108_1020010056767000_1020010058712700_2m_lsf_seg1_meta.txt 
        4.93         2.34         0.36  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170930_1030010072891100_1030010071247900_2m_lsf_seg1_meta.txt 
        0.04        -1.70         0.34  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20181110_102001007C05C800_102001007B7FB400_2m_lsf_seg1_meta.txt 
       -1.41        -3.78        -1.73  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20191022_102001008DB93000_1020010090BBB600_2m_lsf_seg1_meta.txt 
        0.61         4.59         1.88  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200313_10300100A2C1AE00_10300100A4AE4600_2m_lsf_seg1_meta.txt 
       -0.99         1.73        -0.76  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200406_10300100A4A3CA00_10300100A4708900_2m_lsf_seg3_meta.txt 
       -0.91         1.89        -0.56  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200406_10300100A4A3CA00_10300100A4708900_2m_lsf_seg2_meta.txt 
       -2.46         1.83        -3.66  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20200629_1020010098908000_102001009AEA7800_2m_lsf_seg2_meta.txt 
       -2.40         1.75        -3.37  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20200629_1020010098908000_102001009AEA7800_2m_lsf_seg1_meta.txt