> 0.9 contour
-176.089	51.4	0.9
-176.087	51.425	0.9
-176.081	51.45	0.9
-176.081	51.4512	0.9
-176.072	51.475	0.9
-176.058	51.5	0.9
-176.056	51.5035	0.9
-176.042	51.525	0.9
-176.031	51.5388	0.9
-176.023	51.55	0.9
-176.006	51.5715	0.9
-176.003	51.575	0.9
-175.982	51.6	0.9
-175.981	51.6015	0.9
-175.956	51.625	0.9
-175.956	51.6254	0.9
-175.931	51.6434	0.9
-175.918	51.65	0.9
-175.906	51.6563	0.9
-175.881	51.6655	0.9
-175.856	51.6716	0.9
-175.836	51.675	0.9
-175.831	51.6761	0.9
-175.806	51.682	0.9
-175.781	51.6939	0.9
-175.772	51.7	0.9
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-175.712	51.725	0.9
-175.706	51.7269	0.9
-175.681	51.7318	0.9
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-175.497	51.625	0.9
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-175.298	51.5	0.9
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-175.281	51.4624	0.9
-175.276	51.45	0.9
-175.269	51.425	0.9
-175.265	51.4	0.9
> 1.8 contour
-175.936	51.4	1.8
-175.931	51.4186	1.8
-175.929	51.425	1.8
-175.919	51.45	1.8
-175.906	51.472	1.8
-175.904	51.475	1.8
-175.883	51.5	1.8
-175.881	51.5019	1.8
-175.856	51.5216	1.8
-175.85	51.525	1.8
-175.831	51.5347	1.8
-175.806	51.5433	1.8
-175.782	51.55	1.8
-175.781	51.5502	1.8
-175.756	51.5605	1.8
-175.731	51.573	1.8
-175.726	51.575	1.8
-175.706	51.5849	1.8
-175.681	51.5921	1.8
-175.656	51.5946	1.8
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-175.583	51.575	1.8
-175.581	51.5741	1.8
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-175.545	51.55	1.8
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-175.514	51.525	1.8
-175.506	51.5178	1.8
-175.487	51.5	1.8
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-175.466	51.475	1.8
-175.456	51.458	1.8
-175.451	51.45	1.8
-175.441	51.425	1.8
-175.436	51.4	1.8
> 2.7 contour
-175.848	51.4	2.7
-175.839	51.425	2.7
-175.831	51.4393	2.7
-175.825	51.45	2.7
-175.806	51.4708	2.7
-175.802	51.475	2.7
-175.781	51.4907	2.7
-175.765	51.5	2.7
-175.756	51.5051	2.7
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-175.693	51.525	2.7
-175.681	51.527	2.7
-175.656	51.5263	2.7
-175.65	51.525	2.7
-175.631	51.5213	2.7
-175.606	51.5112	2.7
-175.588	51.5	2.7
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-175.559	51.475	2.7
-175.556	51.4718	2.7
-175.539	51.45	2.7
-175.531	51.4332	2.7
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-175.52	51.4	2.7
> 3.6 contour
-175.793	51.4	3.6
-175.781	51.4242	3.6
-175.781	51.425	3.6
-175.76	51.45	3.6
-175.756	51.4532	3.6
-175.731	51.4699	3.6
-175.717	51.475	3.6
-175.706	51.4794	3.6
-175.681	51.4831	3.6
-175.656	51.4803	3.6
-175.641	51.475	3.6
-175.631	51.4712	3.6
-175.606	51.454	3.6
-175.602	51.45	3.6
-175.582	51.425	3.6
-175.581	51.422	3.6
-175.571	51.4	3.6
> 4.5 contour
-175.755	51.4	4.5
-175.738	51.425	4.5
-175.731	51.4315	4.5
-175.706	51.4464	4.5
-175.686	51.45	4.5
-175.681	51.4511	4.5
-175.675	51.45	4.5
-175.656	51.4466	4.5
-175.631	51.4315	4.5
-175.624	51.425	4.5
-175.608	51.4	4.5