> 0.1 contour
-174.518	51.4	0.1
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> 0.2 contour
-174.271	51.4	0.2
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> 0.3 contour
-174.158	51.4	0.3
-174.155	51.425	0.3
-174.154	51.4278	0.3
-174.149	51.45	0.3
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-173.754	51.4335	0.3
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-173.75	51.4	0.3
> 0.4 contour
-174.09	51.4	0.4
-174.087	51.425	0.4
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-174.078	51.45	0.4
-174.062	51.475	0.4
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-173.929	51.5297	0.4
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-173.904	51.5228	0.4
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-173.866	51.5	0.4
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-173.829	51.4536	0.4
-173.827	51.45	0.4
-173.818	51.425	0.4
-173.816	51.4	0.4
> 0.5 contour
-174.048	51.4	0.5
-174.044	51.425	0.5
-174.03	51.45	0.5
-174.029	51.4512	0.5
-174.004	51.475	0.5
-174.004	51.4751	0.5
-173.979	51.488	0.5
-173.954	51.4925	0.5
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-173.879	51.4544	0.5
-173.876	51.45	0.5
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-173.859	51.4	0.5
> 0.6 contour
-174.02	51.4	0.6
-174.013	51.425	0.6
-174.004	51.4373	0.6
-173.991	51.45	0.6
-173.979	51.4585	0.6
-173.954	51.4656	0.6
-173.929	51.4591	0.6
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-173.894	51.425	0.6
-173.887	51.4	0.6