| ps4040 d:\northps\block456-14jan08\ps4040.txt 16 Jan 08 20:10:50 Wednesday elapsed time 00:06:22 1946545 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.873 km2 *percent double coverage = 56.912 **low-curvature dc area = 0.037 km2 | details return classification P1 = 10.0 cm, P2 = 101.0 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.844 95p = 1.637, 98p = 1.993, 99.5p = 2.418  consistency legend | Ground-return consistency BE RMSE = 3.201 95p = 5.940, 98p = 9.011, 99.5p = 15.884   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |