L1
    21     2
  927361.875000 1700257.000000
  927378.000000 1700275.750000
  927392.250000 1700295.375000
  927410.000000 1700315.625000
  927426.312500 1700336.750000
  927443.875000 1700358.000000
  927461.375000 1700380.125000
  927480.250000 1700402.750000
  927497.812500 1700425.500000
  927519.062500 1700447.125000
  927537.312500 1700471.500000
  927557.125000 1700494.375000
  927576.750000 1700518.250000
  927598.750000 1700541.625000
  927617.687500 1700565.750000
  927639.875000 1700590.250000
  927659.937500 1700615.875000
  927680.750000 1700641.125000
  927702.437500 1700666.750000
  927724.625000 1700693.625000
  927748.750000 1700723.375000