# px     py   pz   DEMFileName 
# Strip DEM - [px py pz] =Coordinates aligned with the reference DEM (reference in bundle adjustment). 
        0.20        -2.25        -3.21  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20120526_1030010019931E00_103001001830F700_2m_lsf_seg1_meta.txt 
       -0.85         0.50        -1.42  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20141106_1030010039A4B500_1030010038C1F500_2m_lsf_seg1_meta.txt 
       -1.21        -1.80         0.54  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20141106_1030010039772400_103001003917F400_2m_lsf_seg1_meta.txt 
       -0.32        -1.98         0.95  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20150915_10200100421CBE00_1020010043599400_2m_lsf_seg1_meta.txt 
       -2.57         1.98        -0.23  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20160801_1020010051153200_1020010054BC2300_2m_lsf_seg1_meta.txt 
        1.33         5.03         1.57  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV02_20161018_103001005F812E00_103001005EA3B200_2m_lsf_seg3_meta.txt 
        0.98         3.74        -1.18  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20170926_1040010033830000_1040010032B4AB00_2m_lsf_seg1_meta.txt 
       -0.23         1.07         0.89  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20180521_10200100717F5000_10200100746B6F00_2m_lsf_seg2_meta.txt 
       -0.75        -2.73         3.40  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20190717_102001008CA31F00_102001008A491100_2m_lsf_seg1_meta.txt 
        0.67        -1.11        -0.58  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV03_20191018_1040010052B7CD00_1040010053591000_2m_lsf_seg3_meta.txt 
        2.75        -2.45        -0.73  /home/chunlidai/blue/data/ArcticDEMdata/arcticdem_34_alaska_north//WV01_20200427_1020010094979E00_1020010097379300_2m_lsf_seg1_meta.txt