# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -1.00        -3.55         3.18  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg2_meta.txt 
        6.11        -3.70         3.64  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg1_meta.txt 
       -1.02        -3.50         3.49  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20130108_102001001F756D00_102001001F961E00_2m_lsf_seg3_meta.txt 
       -0.01        -1.63        -3.47  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141110_10200100360C8400_1020010035810F00_2m_lsf_seg1_meta.txt 
       -0.28         6.48         0.99  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg3_meta.txt 
        0.61         4.34         1.77  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg1_meta.txt 
        0.74         5.16         1.89  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141114_103001003A330500_10300100388E4200_2m_lsf_seg2_meta.txt 
       -1.34        -1.83        -3.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20141227_10200100361D1A00_10200100372EA900_2m_lsf_seg1_meta.txt 
       -2.68         0.71        -0.31  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20141230_103001003C1FC200_103001003B488C00_2m_lsf_seg1_meta.txt 
        0.99        -3.01        -2.63  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20160115_1020010049A3C600_1020010048677D00_2m_lsf_seg1_meta.txt 
       -0.14         0.76         2.01  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV03_20161106_10400100233AFC00_1040010024BD9D00_2m_lsf_seg1_meta.txt 
        0.24        -0.77        -0.26  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20161108_1020010056767000_1020010058712700_2m_lsf_seg1_meta.txt 
        4.36         2.08         0.34  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20170930_1030010072891100_1030010071247900_2m_lsf_seg1_meta.txt 
       -0.62        -2.10        -0.11  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20181110_102001007C05C800_102001007B7FB400_2m_lsf_seg1_meta.txt 
       -1.72        -3.83        -1.90  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV01_20191022_102001008DB93000_1020010090BBB600_2m_lsf_seg1_meta.txt 
        0.53         4.39         1.41  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200313_10300100A2C1AE00_10300100A4AE4600_2m_lsf_seg1_meta.txt 
       -4.75         0.00        -6.62  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_31_alaska_south//WV02_20200621_10300100A883C000_10300100AA8DA200_2m_lsf_seg1_meta.txt