# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        2.01         1.20        -0.38  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20160922_1020010056946A00_1020010056408E00_2m_lsf_v040201//SETSM_s2s041_WV01_20160922_1020010056946A00_1020010056408E00_2m_lsf_seg1_meta.txt 
       -2.18        -0.39        -1.31  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV01_20180515_1020010074E4AB00_1020010074D23000_2m_lsf_v030302//SETSM_s2s041_WV01_20180515_1020010074E4AB00_1020010074D23000_2m_lsf_seg1_meta.txt 
        0.18        -0.81         1.69  /home/chunli/chunliproject/ArcticDEMdata/arcticdem_10_canada_north_mainland/strips_v4.1/2m/WV02_20200330_10300100A549D900_10300100A420D900_2m_lsf_v040203//SETSM_s2s041_WV02_20200330_10300100A549D900_10300100A420D900_2m_lsf_seg1_meta.txt