line offset:	2413.7167	3549.8697	4908.2956	3612.8406
line slope:	1003.3406	1294.0325	1493.3858	1256.4904
slope ratio:	   0.7754	   1.1885
subtract ped line offset:	-10461.4016	-6711.4047	-23489.6990	-17359.9483
subtract ped line slope:	1001.9076	1293.9885	1491.6976	1256.5747
slope ratio:	   0.7743	   1.1885
offset:	-10486.7814	-6705.2374	-23512.9641	-17369.2199
x a,b,c:	   0.0656	  -1.0963	   0.0436
y a,b,c:	   0.0437	   1.1881	   0.0589
fval:	   0.1877	   0.1315
x err:	   0.2253	   0.1484	   0.1696
y err:	   0.2429	   0.1995	   0.1386