# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
       -1.43         0.00         2.28  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20150402_104001000A3E6200_1040010009218400_2m_lsf_v030000//WV03_20150402_104001000A3E6200_1040010009218400_2m_lsf_seg1_meta.txt 
        2.22        -1.17        -1.00  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV01_20200628_1020010096B5AA00_1020010098CBCF00_2m_lsf_v040204//WV01_20200628_1020010096B5AA00_1020010098CBCF00_2m_lsf_seg1_meta.txt 
       -0.79         1.17        -1.28  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_04_greenland_central/strips_v4/2m/WV03_20200703_104001005C63EF00_104001005D438600_2m_lsf_v040204//WV03_20200703_104001005C63EF00_104001005D438600_2m_lsf_seg1_meta.txt