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ps3931
d:\northps\block456-14jan08\ps3931.txt
16 Jan 08 19:15:41 Wednesday  elapsed time 00:05:52
Rectangular area = 0.875 km2
Data area = 0.873 km2
*percent double coverage = 32.847
**low-curvature dc area = 0.053 km2
1st-return RMSE, low-curvature areas = 1.169
95p = 1.765, 98p = 1.945, 99.5p = 2.190
BE RMSE = 1.118
95p = 2.146, 98p = 2.707, 99.5p = 3.667
1843421 unique returns and 0 duplicate returns
 
345739.246852 1528265.19 574250.79 4362.37 1 2 
345752.748495 1525270.52 574002.21 4168.49 2 1 
1260.130994
347012.879489 1525270.63 574248.44 4035.26 2 1 
347026.457485 1528269.9 572074.73 5472.01 1 1 
251.920879
347278.378364 1528269.65 572342.67 5334.44 1 1 
347291.566836 1525270.01 571352.82 4658.12 1 1 
 
916734 1st returns
926687 2nd returns
0 3rd returns
0 4th returns
536355 ground returns
0 blunders

curvature versus slope
  n = 168975 
  X=0, Y = 55.57 +/- 10.97 
  Weighted least-squares fit:  Y = 58.1 + 1.849 X  + -0.01980 X**2 
 
slope versus dZ, curvature < 5
  n = 88862 
 
  Weighted least-squares fit:  Y = -1.8 + 0.733 X  + -0.00079 X**2 
     at X = 100, Y = 63.6 
     effective RMSE xy = 99.9 
 
slope versus dZ, curvature < 15
  n = 131023 
 
  Weighted least-squares fit:  Y = 4.4 + 0.530 X  + 0.00114 X**2 
 

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