> 0.5 contour
-175.667	51.4	0.5
-175.662	51.425	0.5
-175.657	51.4456	0.5
-175.656	51.45	0.5
-175.647	51.475	0.5
-175.636	51.5	0.5
-175.632	51.509	0.5
-175.623	51.525	0.5
-175.607	51.5499	0.5
-175.607	51.55	0.5
-175.586	51.575	0.5
-175.582	51.5794	0.5
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-175.522	51.625	0.5
-175.507	51.6449	0.5
-175.505	51.65	0.5
-175.491	51.675	0.5
-175.482	51.6869	0.5
-175.472	51.7	0.5
-175.457	51.7162	0.5
-175.448	51.725	0.5
-175.432	51.7382	0.5
-175.416	51.75	0.5
-175.407	51.7562	0.5
-175.382	51.7712	0.5
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-175.357	51.7841	0.5
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-175.107	51.8385	0.5
-175.082	51.8428	0.5
-175.057	51.845	0.5
-175.032	51.8448	0.5
-175.007	51.8421	0.5
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-174.864	51.8	0.5
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-174.743	51.75	0.5
-174.732	51.7431	0.5
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-174.495	51.4	0.5
> 1 contour
-175.425	51.4	1
-175.42	51.425	1
-175.411	51.45	1
-175.407	51.4596	1
-175.4	51.475	1
-175.384	51.5	1
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-175.366	51.525	1
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-175.342	51.55	1
-175.332	51.5589	1
-175.309	51.575	1
-175.307	51.5764	1
-175.282	51.5888	1
-175.257	51.5954	1
-175.232	51.5958	1
-175.207	51.5903	1
-175.182	51.584	1
-175.159	51.6	1
-175.157	51.6077	1
-175.144	51.625	1
-175.132	51.6376	1
-175.107	51.65	1
-175.107	51.6503	1
-175.082	51.6575	1
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-175.032	51.6586	1
-175.007	51.6534	1
-174.998	51.65	1
-174.982	51.6443	1
-174.957	51.6296	1
-174.952	51.625	1
-174.932	51.6065	1
-174.928	51.6	1
-174.907	51.5803	1
-174.9	51.575	1
-174.882	51.5621	1
-174.857	51.5533	1
-174.849	51.55	1
-174.832	51.5406	1
-174.81	51.525	1
-174.807	51.5218	1
-174.786	51.5	1
-174.782	51.4942	1
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-174.757	51.4526	1
-174.755	51.45	1
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-174.739	51.4	1
> 1.5 contour
-175.313	51.4	1.5
-175.307	51.4186	1.5
-175.304	51.425	1.5
-175.292	51.45	1.5
-175.282	51.4641	1.5
-175.274	51.475	1.5
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-175.247	51.5	1.5
-175.232	51.5109	1.5
-175.207	51.5244	1.5
-175.205	51.525	1.5
-175.182	51.5344	1.5
-175.157	51.5447	1.5
-175.143	51.55	1.5
-175.132	51.5547	1.5
-175.107	51.5629	1.5
-175.082	51.5676	1.5
-175.057	51.5684	1.5
-175.032	51.5652	1.5
-175.007	51.5578	1.5
-174.99	51.55	1.5
-174.982	51.546	1.5
-174.957	51.5304	1.5
-174.95	51.525	1.5
-174.932	51.5105	1.5
-174.92	51.5	1.5
-174.907	51.4859	1.5
-174.897	51.475	1.5
-174.882	51.4526	1.5
-174.88	51.45	1.5
-174.867	51.425	1.5
-174.859	51.4	1.5
> 2 contour
-175.24	51.4	2
-175.232	51.4168	2
-175.228	51.425	2
-175.21	51.45	2
-175.207	51.4536	2
-175.183	51.475	2
-175.182	51.4759	2
-175.157	51.4916	2
-175.138	51.5	2
-175.132	51.5025	2
-175.107	51.5098	2
-175.082	51.5128	2
-175.057	51.5113	2
-175.032	51.5049	2
-175.021	51.5	2
-175.007	51.4935	2
-174.982	51.4756	2
-174.981	51.475	2
-174.958	51.45	2
-174.957	51.4486	2
-174.942	51.425	2
-174.933	51.4	2
> 2.5 contour
-175.188	51.4	2.5
-175.182	51.4109	2.5
-175.173	51.425	2.5
-175.157	51.4424	2.5
-175.147	51.45	2.5
-175.132	51.4601	2.5
-175.107	51.4698	2.5
-175.082	51.473	2.5
-175.057	51.4699	2.5
-175.032	51.4596	2.5
-175.018	51.45	2.5
-175.007	51.4399	2.5
-174.994	51.425	2.5
-174.982	51.4	2.5
> 3 contour
-175.151	51.4	3
-175.132	51.4236	3
-175.13	51.425	3
-175.107	51.4397	3
-175.082	51.4449	3
-175.057	51.4392	3
-175.035	51.425	3
-175.032	51.4216	3
-175.015	51.4	3