| ps3939 d:\northps\block456-14jan08\ps3939.txt 16 Jan 08 19:20:39 Wednesday elapsed time 00:04:48 855234 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.866 km2 *percent double coverage = 14.556 **low-curvature dc area = 0.126 km2 | details return classification P1 = 6.4 cm, P2 = 934.3 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.338 95p = 0.639, 98p = 0.816, 99.5p = 1.901  consistency legend | Ground-return consistency BE RMSE = 0.167 95p = 0.421, 98p = 0.579, 99.5p = 0.752   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |