# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        0.00         0.00        -1.03  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//W1W1_20100701_102001000D06A500_102001000E9C4E00_2m_lsf_seg3_meta.txt 
        0.10         3.57         1.51  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20121019_103001001CC73500_103001001D028400_2m_lsf_seg4_meta.txt 
        2.75         0.84         1.44  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20121019_103001001CC73500_103001001D028400_2m_lsf_seg3_meta.txt 
        2.80         0.73         1.16  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20121019_103001001CC73500_103001001D028400_2m_lsf_seg2_meta.txt 
        3.56         0.07         1.92  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20121019_103001001CC73500_103001001D028400_2m_lsf_seg1_meta.txt 
       -4.35         1.41        -3.20  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20130612_10300100221CA300_103001002266A600_2m_lsf_seg1_meta.txt 
        0.32        -2.76        -1.85  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140621_1020010030E3A800_102001002E761800_2m_lsf_seg1_meta.txt 
        3.61        -0.43         1.24  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140624_102001002E675C00_102001002FC4FB00_2m_lsf_seg1_meta.txt 
        0.88         0.48        -5.51  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20160702_1030010058530A00_1030010059138400_2m_lsf_seg1_meta.txt 
       -2.37         3.20         0.31  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160805_102001005389E700_1020010053C0B100_2m_lsf_seg1_meta.txt 
       -2.53        -2.57         1.39  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20170825_1030010070CD9C00_10300100708AEE00_2m_lsf_seg1_meta.txt 
       -0.11         1.82         2.61  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180317_103001007A9E9000_103001007A991C00_2m_lsf_seg2_meta.txt 
       -0.02         1.00         2.36  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180317_103001007A9E9000_103001007A991C00_2m_lsf_seg1_meta.txt 
       -3.53        -0.99        -0.55  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20180401_104001003A1B4100_104001003A58C600_2m_lsf_seg1_meta.txt 
        0.38        -1.73        -0.93  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20180413_104001003B4A4200_104001003A508A00_2m_lsf_seg1_meta.txt 
       -1.02         0.41        -1.43  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20190220_104001004832DA00_10400100474E3700_2m_lsf_seg1_meta.txt 
       -0.37         1.76         0.54  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20190319_1040010049B0CC00_1040010049B3D300_2m_lsf_seg1_meta.txt 
       -0.31         2.33         0.80  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20190319_1040010049B0CC00_1040010049B3D300_2m_lsf_seg2_meta.txt 
       -0.72        -1.37        -0.47  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20190917_1040010051D4AF00_104001005072C500_2m_lsf_seg1_meta.txt 
        3.25        -5.03         0.19  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20200227_10400100595E8700_1040010059D51D00_2m_lsf_seg1_meta.txt 
       -2.32        -2.74        -0.51  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20200305_10300100A3803F00_10300100A65C3C00_2m_lsf_seg1_meta.txt