| ps4643 d:\northps\block456-14jan08\ps4643.txt 17 Jan 08 03:17:55 Thursday elapsed time 00:15:23 3477357 unique returns and 0 duplicate returns | Rectangular area = 0.877 km2 Data area = 0.874 km2 *percent double coverage = 99.993 **low-curvature dc area = 0.003 km2 | details return classification P1 = 15.4 cm, P2 = 81.2 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 0.883 95p = 1.506, 98p = 1.663, 99.5p = 1.882  consistency legend | Ground-return consistency BE RMSE = 2.768 95p = 5.427, 98p = 7.464, 99.5p = 11.380   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |