> 0.7 contour -Z0.7
-175.3148	51.821400002	0.7
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> 1.4 contour -Z1.4
-175.2898	51.7216644649	1.4
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> 2.1 contour -Z2.1
-175.2898	51.6773861154	2.1
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> 2.8 contour -Z2.8
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> 3.5 contour -Z3.5
-175.2148	51.6451503928	3.5
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> 4.2 contour -Z4.2
-175.2398	51.62640342	4.2
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> 4.9 contour -Z4.9
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