line offset:	1711.8689	12765.1602	16171.7575	3039.2863
line slope:	 955.4249	 576.5456	 546.5948	2054.6684
slope ratio:	   1.6572	   0.2660
subtract ped line offset:	-8217.1183	-14267.1855	-21862.3279	-9441.2915
subtract ped line slope:	 955.4249	 576.5456	 546.5948	2054.6684
slope ratio:	   1.6572	   0.2660
offset:	-8217.1183	-14267.1855	-21862.3279	-9441.2915
x a,b,c:	   0.7170	   1.0430	   0.0046
y a,b,c:	  -0.7546	   1.1529	  -0.0628
fval:	   0.2027	   0.1973
x err:	   0.2553	   0.1501	   0.2065
y err:	   0.2216	   0.1695	   0.1427