# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        0.04        -2.48        -2.56  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20120703_1030010019B0B700_10300100185DF400_2m_lsf_seg1_meta.txt 
        1.19        -0.86         1.21  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20130825_103001002686A600_103001002612C800_2m_lsf_seg1_meta.txt 
       -1.51        -3.42         2.34  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20130916_1030010026BF5600_1030010025438B00_2m_lsf_seg1_meta.txt 
        1.94        -1.42        -0.60  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20140417_102001002ECFC200_102001002DA41400_2m_lsf_seg1_meta.txt 
       -2.68        -1.76         0.75  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20150311_1040010008619D00_104001000837D800_2m_lsf_seg1_meta.txt 
        1.22         0.53        -3.72  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160504_102001004E4BD500_102001004FD19200_2m_lsf_seg1_meta.txt 
       -2.03        -4.62        -1.70  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160909_1020010053A68300_102001005590E300_2m_lsf_seg1_meta.txt 
       -3.39         6.93        -0.42  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20170609_1020010064A54B00_1020010063A05700_2m_lsf_seg1_meta.txt 
       -0.93         0.48        -0.91  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20180401_103001007B0C2200_103001007CB6F800_2m_lsf_seg1_meta.txt 
        2.94         2.56         0.80  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20180421_104001003B4DDE00_104001003C31AE00_2m_lsf_seg1_meta.txt 
        0.86         0.17         0.80  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20180424_1020010072508700_10200100731A5F00_2m_lsf_seg1_meta.txt 
        3.20         6.61         1.39  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20190221_103001008CB9B100_103001008D29E500_2m_lsf_seg1_meta.txt 
        1.07        -1.37        -0.41  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20190315_1020010081DE6700_1020010083C75300_2m_lsf_seg1_meta.txt 
       -1.92        -1.35         3.04  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20200330_104001005ABC5F00_10400100599E2800_2m_lsf_seg1_meta.txt