| ps4457 d:\northps\block456-14jan08\ps4457.txt 17 Jan 08 01:08:51 Thursday elapsed time 00:06:16 1740928 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.874 km2 *percent double coverage = 45.740 **low-curvature dc area = 0.046 km2 | details return classification P1 = 1.0 cm, P2 = 65.1 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 1.185 95p = 2.271, 98p = 3.102, 99.5p = 3.484  consistency legend | Ground-return consistency BE RMSE = 1.771 95p = 3.193, 98p = 4.227, 99.5p = 7.104   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |