| ps0169 d:\northps\block123-14dec07\ps0169.txt 14 Dec 07 14:17:54 Friday elapsed time 00:07:57 2154676 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.874 km2 *percent double coverage = 99.910 **low-curvature dc area = 0.019 km2 | details return classification P1 = 90.7 cm, P2 = 0 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 2.472 95p = 4.576, 98p = 4.771, 99.5p = 4.960  consistency legend | Ground-return consistency BE RMSE = 1.595 95p = 2.650, 98p = 2.987, 99.5p = 3.492   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |