> 0.4 contour -Z0.4
-179.7128	51.1425487731	0.4
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> 0.8 contour -Z0.8
-179.6878	51.0420989621	0.8
-179.6628	51.0494501287	0.8
-179.6378	51.0541919757	0.8
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> 1.2 contour -Z1.2
-179.5878	51.0159286806	1.2
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-179.5628	51.0145990478	1.2
-179.5378	51.0112711316	1.2
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-179.4378	50.8842119464	1.2
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-179.4628	50.8538472803	1.2
-179.481796389	50.8408947368	1.2
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> 1.6 contour -Z1.6
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> 2 contour -Z2
-179.6128	50.9722110322	2
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> 2.4 contour -Z2.4
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> 2.8 contour -Z2.8
-179.6128	50.940428599	2.8
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-179.6128	50.940428599	2.8