> 0.2 contour
-174.162	51.4	0.2
-174.168	51.425	0.2
-174.172	51.45	0.2
-174.174	51.475	0.2
-174.172	51.5	0.2
-174.169	51.525	0.2
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-174.154	51.5762	0.2
-174.145	51.6	0.2
-174.133	51.625	0.2
-174.129	51.6329	0.2
-174.119	51.65	0.2
-174.104	51.6707	0.2
-174.1	51.675	0.2
-174.079	51.6984	0.2
-174.077	51.7	0.2
-174.054	51.72	0.2
-174.047	51.725	0.2
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-174.006	51.75	0.2
-174.004	51.7512	0.2
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-173.904	51.7857	0.2
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-173.854	51.7954	0.2
-173.829	51.798	0.2
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-173.583	51.7	0.2
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-173.56	51.675	0.2
-173.554	51.6674	0.2
-173.54	51.65	0.2
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-173.51	51.6	0.2
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-173.499	51.575	0.2
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-173.481	51.5	0.2
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-173.491	51.4	0.2
> 0.4 contour
-173.965	51.4	0.4
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-173.979	51.425	0.4
-173.987	51.45	0.4
-173.99	51.475	0.4
-173.988	51.5	0.4
-173.979	51.525	0.4
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-173.965	51.55	0.4
-173.954	51.5617	0.4
-173.937	51.575	0.4
-173.929	51.5791	0.4
-173.904	51.6	0.4
-173.904	51.6006	0.4
-173.879	51.621	0.4
-173.869	51.625	0.4
-173.854	51.6312	0.4
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-173.804	51.6349	0.4
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-173.768	51.625	0.4
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-173.686	51.55	0.4
-173.679	51.535	0.4
-173.674	51.525	0.4
-173.667	51.5	0.4
-173.664	51.475	0.4
-173.667	51.45	0.4
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-173.686	51.4	0.4
> 0.6 contour
-173.862	51.4	0.6
-173.879	51.4096	0.6
-173.895	51.425	0.6
-173.904	51.4402	0.6
-173.909	51.45	0.6
-173.914	51.475	0.6
-173.909	51.5	0.6
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-173.895	51.525	0.6
-173.879	51.5407	0.6
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-173.854	51.5554	0.6
-173.829	51.5612	0.6
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-173.759	51.525	0.6
-173.754	51.5156	0.6
-173.746	51.5	0.6
-173.741	51.475	0.6
-173.746	51.45	0.6
-173.754	51.4353	0.6
-173.76	51.425	0.6
-173.779	51.4068	0.6
-173.791	51.4	0.6
> 0.8 contour
-173.854	51.5121	0.8
-173.829	51.5224	0.8
-173.804	51.5128	0.8
-173.791	51.5	0.8
-173.781	51.475	0.8
-173.791	51.45	0.8
-173.804	51.4374	0.8
-173.829	51.4278	0.8
-173.854	51.4381	0.8
-173.866	51.45	0.8
-173.876	51.475	0.8
-173.866	51.5	0.8
-173.854	51.5121	0.8