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ps1871
d:\northps\block123-14dec07\ps1871.txt
15 Dec 07 06:28:54 Saturday  elapsed time 00:07:04
Rectangular area = 0.876 km2
Data area = 0.874 km2
*percent double coverage = 99.878
**low-curvature dc area = 0.004 km2
1st-return RMSE, low-curvature areas = 1.101
95p = 1.544, 98p = 1.680, 99.5p = 1.907
BE RMSE = 1.715
95p = 3.473, 98p = 4.553, 99.5p = 6.289
1836584 unique returns and 0 duplicate returns
 
255956.540771 1328727.37 640251.26 684.96 2 2 
255971.552936 1327275.67 637253.25 1471.15 2 1 
534.504795
256506.057731 1327276.23 637253.34 1474.05 1 1 
256519.932779 1330232.8 640251.61 855.47 2 1 
1092.644557
257612.577336 1330246.05 640251.99 802.26 2 2 
257627.886159 1327807.96 637252.22 1374.0 2 1 
652.112301
258279.99846 1330068.42 637252.57 700.14 2 2 
258289.032291 1330269.93 639314.3 804.48 1 1 
 
915420 1st returns
921164 2nd returns
0 3rd returns
0 4th returns
126740 ground returns
0 blunders

curvature versus slope
  n = 477783 
  X=0, Y = 33.32 +/- 28.33 
  Weighted least-squares fit:  Y = 66.1 + 1.468 X  + -0.01581 X**2 
 
slope versus dZ, curvature < 5
  n = 24058 
 
  Weighted least-squares fit:  Y = 34.7 + 0.093 X  + 0.00395 X**2 
     at X = 100, Y = 83.5 
     effective RMSE xy = 119.3 
 
slope versus dZ, curvature < 15
  n = 62674 
 
  Weighted least-squares fit:  Y = 34.1 + 0.233 X  + 0.00266 X**2 
 
curvature versus dZ, slope < 10
  n = 13705 
  X=0, Y = 35.08 +/- 8.90 
  Weighted least-squares fit:  Y = 33.7 + 2.721 X  + -0.06343 X**2 
 
 
Number of samples 483461
Max dz = 900
Mean dz = 79
RMS dz = 119.824872209
100cm = 73.0536692722 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