| ps4812 d:\northps\block456-14jan08\ps4812.txt 17 Jan 08 06:24:54 Thursday elapsed time 00:04:54 1180638 unique returns and 0 duplicate returns | Rectangular area = 0.876 km2 Data area = 0.810 km2 *percent double coverage = 22.315 **low-curvature dc area = 0.011 km2 | details return classification P1 = 8.8 cm, P2 = 120.4 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.486 95p = 1.089, 98p = 1.496, 99.5p = 1.866  consistency legend | Ground-return consistency BE RMSE = 0.995 95p = 1.725, 98p = 2.902, 99.5p = 5.807   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |