# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        1.99         2.42        -0.24  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20130323_102001002278D800_1020010021739600_2m_lsf_v040306//SETSM_s2s041_WV01_20130323_102001002278D800_1020010021739600_2m_lsf_seg1_meta.txt 
       -6.20        -2.42         0.26  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20150302_102001003BAEB700_102001003BD97200_2m_lsf_v040306//SETSM_s2s041_WV01_20150302_102001003BAEB700_102001003BD97200_2m_lsf_seg1_meta.txt 
        4.20         0.00        -0.02  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV02_20170327_10300100679BC400_1030010065AD9100_2m_lsf_v040306//SETSM_s2s041_WV02_20170327_10300100679BC400_1030010065AD9100_2m_lsf_seg1_meta.txt