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ps2903
d:\northps\block123-14dec07\ps2903.txt
15 Dec 07 12:25:35 Saturday  elapsed time 00:06:51
Rectangular area = 0.875 km2
Data area = 0.874 km2
*percent double coverage = 99.466
**low-curvature dc area = 0.011 km2
1st-return RMSE, low-curvature areas = 1.231
95p = 2.140, 98p = 2.408, 99.5p = 2.731
BE RMSE = 2.576
95p = 4.841, 98p = 7.108, 99.5p = 12.524
1801446 unique returns and 0 duplicate returns
 
238516.594442 1339270.29 599931.76 1870.52 2 1 
238530.219982 1342269.59 598279.39 2699.89 1 1 
896.493275
239426.713257 1342269.44 601212.03 2198.72 1 1 
239441.00014 1339270.47 598405.81 2074.89 1 1 
787.826158
240228.826298 1339270.01 601249.88 1806.71 2 2 
240242.216712 1342269.81 599537.06 2500.54 2 1 
 
895710 1st returns
905736 2nd returns
0 3rd returns
0 4th returns
142109 ground returns
0 blunders

curvature versus slope
  n = 264139 
  X=0, Y = 42.23 +/- 25.85 
  Weighted least-squares fit:  Y = 52.6 + 2.276 X  + -0.02473 X**2 
 
slope versus dZ, curvature < 5
  n = 52871 
 
  Weighted least-squares fit:  Y = 43.0 + -0.562 X  + 0.00755 X**2 
     at X = 100, Y = 62.3 
     effective RMSE xy = 70.8 
 
slope versus dZ, curvature < 15
  n = 134646 
 
  Weighted least-squares fit:  Y = 43.9 + -0.496 X  + 0.00706 X**2 
 
curvature versus dZ, slope < 10
  n = 9040 
  X=0, Y = 37.30 +/- 18.51 
  Weighted least-squares fit:  Y = 39.4 + 1.001 X  + -0.07502 X**2 
 
 
Number of samples 271461
Max dz = 900
Mean dz = 55
RMS dz = 93.5414346693
100cm = 87.066282081 percentile value of dz

Number of survey units in 1 meter = 3.208
Nominal spot spacing (in survey units) = 5
Nominal pulse density (per m2) = 1
Difference cell size = 2.5
IsData cell size = 1.25
IsData expand cells = 8
IsData shrink cells = 7
BE IsData cell size = 2.5
BE IsData expand cells = 24
BE IsData shrink cells = 24
MaxCurve = 24.69903359999
Curvature expand cells = 4
Curvature shrink cells = 3
Point density cell size = 20
Color critical value = 0.3208
Hue jump at critical value = 90