> 20 contour
336.424	-0.879659	20
336.481	-0.8842	20
336.507	-0.885407	20
336.59	-0.897034	20
336.674	-0.935543	20
336.715	-0.967533	20
336.757	-1.00907	20
336.79	-1.05087	20
336.824	-1.1342	20
336.837	-1.21753	20
336.832	-1.30087	20
336.809	-1.3842	20
336.757	-1.45679	20
336.748	-1.46753	20
336.674	-1.5331	20
336.634	-1.55087	20
336.59	-1.5725	20
336.507	-1.59173	20
336.424	-1.59529	20
336.347	-1.55087	20
336.34	-1.54724	20
336.257	-1.4913	20
336.234	-1.46753	20
336.179	-1.3842	20
336.174	-1.36698	20
336.148	-1.30087	20
336.142	-1.21753	20
336.158	-1.1342	20
336.174	-1.10201	20
336.194	-1.05087	20
336.257	-0.976015	20
336.267	-0.967533	20
336.34	-0.917496	20
336.415	-0.8842	20
336.424	-0.879659	20
> 40 contour
336.424	-1.03157	40
336.507	-1.02669	40
336.561	-1.05087	40
336.59	-1.05915	40
336.663	-1.1342	40
336.674	-1.18186	40
336.689	-1.21753	40
336.675	-1.30087	40
336.674	-1.30362	40
336.628	-1.3842	40
336.59	-1.41594	40
336.507	-1.45191	40
336.424	-1.44303	40
336.358	-1.3842	40
336.34	-1.36785	40
336.288	-1.30087	40
336.277	-1.21753	40
336.308	-1.1342	40
336.34	-1.09015	40
336.394	-1.05087	40
336.424	-1.03157	40
> 60 contour
336.424	-1.10115	60
336.507	-1.08156	60
336.59	-1.12577	60
336.598	-1.1342	60
336.637	-1.21753	60
336.627	-1.30087	60
336.59	-1.34363	60
336.507	-1.37828	60
336.424	-1.35962	60
336.362	-1.30087	60
336.341	-1.21753	60
336.386	-1.1342	60
336.424	-1.10115	60
> 80 contour
336.507	-1.12142	80
336.529	-1.1342	80
336.59	-1.20882	80
336.595	-1.21753	80
336.59	-1.24303	80
336.577	-1.30087	80
336.507	-1.34314	80
336.424	-1.30266	80
336.422	-1.30087	80
336.408	-1.21753	80
336.424	-1.18974	80
336.472	-1.1342	80
336.507	-1.12142	80