| ps4141 d:\northps\block456-14jan08\ps4141.txt 16 Jan 08 21:17:28 Wednesday elapsed time 00:06:27 1902858 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.874 km2 *percent double coverage = 56.772 **low-curvature dc area = 0.023 km2 | details return classification P1 = 7.8 cm, P2 = 118.9 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 1.193 95p = 2.219, 98p = 2.605, 99.5p = 3.241  consistency legend | Ground-return consistency BE RMSE = 1.245 95p = 2.369, 98p = 3.197, 99.5p = 5.149   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |