| ps4312 d:\northps\block123-14dec07\ps4312.txt 15 Dec 07 18:22:19 Saturday elapsed time 00:08:24 1975033 unique returns and 0 duplicate returns | Rectangular area = 0.876 km2 Data area = 0.874 km2 *percent double coverage = 99.883 **low-curvature dc area = 0.392 km2 | details return classification P1 = 10.8 cm, P2 = 68.7 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.554 95p = 1.250, 98p = 1.511, 99.5p = 1.797  consistency legend | Ground-return consistency BE RMSE = 0.810 95p = 1.406, 98p = 2.322, 99.5p = 4.048   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |