| ps1888 d:\northps\block456-14jan08\ps1888.txt 15 Jan 08 15:06:57 Tuesday elapsed time 00:08:12 1714770 unique returns and 0 duplicate returns | Rectangular area = 0.875 km2 Data area = 0.873 km2 *percent double coverage = 96.998 **low-curvature dc area = 0.001 km2 | details return classification P1 = 86.9 cm, P2 = 165.1 cm | 
| 1st-return consistency 1st-return RMSE, low-curvature areas = 2.410 95p = 3.863, 98p = 4.045, 99.5p = 4.267  consistency legend | Ground-return consistency BE RMSE = 3.800 95p = 6.638, 98p = 8.962, 99.5p = 15.364   | 1st-return density  ground-return density  density legend ratio ground returns to 1st returns  ratio legend |