| ps3978 d:\northps\block123-14dec07\ps3978.txt 26 Dec 07 13:58:37 Wednesday elapsed time 00:04:51 1281402 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.872 km2 *percent double coverage = 28.374 **low-curvature dc area = 0.002 km2 | details return classification P1 = 39.2 cm, P2 = 167.3 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 1.827 95p = 2.614, 98p = 2.892, 99.5p = 3.304  consistency legend | Ground-return consistency BE RMSE = 3.179 95p = 6.281, 98p = 8.390, 99.5p = 11.840   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |