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ps2891
d:\northps\block123-14dec07\ps2891.txt
15 Dec 07 12:18:33 Saturday  elapsed time 00:08:07
Rectangular area = 0.875 km2
Data area = 0.874 km2
*percent double coverage = 99.643
**low-curvature dc area = 0.039 km2
1st-return RMSE, low-curvature areas = 1.187
95p = 1.935, 98p = 2.131, 99.5p = 2.393
BE RMSE = 2.929
95p = 6.089, 98p = 8.571, 99.5p = 12.659
1774838 unique returns and 0 duplicate returns
 
237885.818296 1306269.94 598554.44 260.43 2 1 
237900.611572 1303270.51 599575.05 1193.69 2 1 
457.453959
238358.065531 1303271.18 601249.47 1131.51 1 1 
238372.306256 1306269.28 598257.91 260.07 1 1 
1217.622953
239589.929209 1306266.47 598468.68 258.65 1 1 
239603.520665 1303270.46 599707.01 1224.87 1 1 
468.699567
240072.220232 1303275.92 601239.42 1106.95 2 1 
240085.788486 1306268.57 600135.53 291.45 2 1 
 
885277 1st returns
889561 2nd returns
0 3rd returns
0 4th returns
100792 ground returns
0 blunders

curvature versus slope
  n = 864941 
  X=0, Y = 17.09 +/- 14.00 
  Weighted least-squares fit:  Y = 46.1 + 2.849 X  + -0.03236 X**2 
 
slope versus dZ, curvature < 5
  n = 151853 
 
  Weighted least-squares fit:  Y = 35.3 + 0.056 X  + 0.00324 X**2 
     at X = 100, Y = 73.3 
     effective RMSE xy = 100.9 
 
slope versus dZ, curvature < 15
  n = 261284 
 
  Weighted least-squares fit:  Y = 33.9 + 0.234 X  + 0.00217 X**2 
 
curvature versus dZ, slope < 10
  n = 110006 
  X=0, Y = 36.13 +/- 20.24 
  Weighted least-squares fit:  Y = 36.3 + -0.350 X  + 0.08361 X**2 
 
 
Number of samples 884219
Max dz = 900
Mean dz = 65
RMS dz = 95.7810002036
100cm = 79.601772864 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