| ps4756 d:\northps\block456-14jan08\ps4756.txt 17 Jan 08 04:54:07 Thursday elapsed time 00:14:50 3691599 unique returns and 0 duplicate returns | Rectangular area = 0.877 km2 Data area = 0.874 km2 *percent double coverage = 99.961 **low-curvature dc area = 0.002 km2 | details return classification P1 = 14.6 cm, P2 = 46.7 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.369 95p = 0.776, 98p = 0.914, 99.5p = 1.100  consistency legend | Ground-return consistency BE RMSE = 1.536 95p = 2.964, 98p = 4.144, 99.5p = 6.494   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |