# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        3.23        -0.34        -0.43  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20140512_102001002D14A100_102001002EA6D700_2m_lsf_v040306//SETSM_s2s041_WV01_20140512_102001002D14A100_102001002EA6D700_2m_lsf_seg1_meta.txt 
       -1.21        -0.28        -0.20  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV02_20150309_103001003D61A300_103001003F515500_2m_lsf_v040306//SETSM_s2s041_WV02_20150309_103001003D61A300_103001003F515500_2m_lsf_seg1_meta.txt 
       -0.12        -2.14        -0.98  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20160925_1020010056E0C500_1020010054D0D900_2m_lsf_v040201//SETSM_s2s041_WV01_20160925_1020010056E0C500_1020010054D0D900_2m_lsf_seg1_meta.txt 
       -1.91         2.76         1.61  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV02_20180707_1030010082D6AB00_1030010081C1F000_2m_lsf_v030403//SETSM_s2s041_WV02_20180707_1030010082D6AB00_1030010081C1F000_2m_lsf_seg1_meta.txt