| ps4008 d:\northps\block456-14jan08\ps4008.txt 16 Jan 08 19:44:15 Wednesday elapsed time 00:15:03 3021782 unique returns and 0 duplicate returns | Rectangular area = 0.876 km2 Data area = 0.874 km2 *percent double coverage = 99.961 **low-curvature dc area = 0.010 km2 | details return classification P1 = 69.4 cm, P2 = 139.1 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 2.246 95p = 4.879, 98p = 5.068, 99.5p = 5.293  consistency legend | Ground-return consistency BE RMSE = 2.938 95p = 5.389, 98p = 9.200, 99.5p = 16.083   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |