> 0.3 contour
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> 0.3 contour
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-176.541	52.05	0.3
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> 0.3 contour
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> 0.3 contour
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> 0.6 contour
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> 0.9 contour
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> 0.9 contour
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> 1.2 contour
-177.067	51.4	1.2
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> 1.5 contour
-177.292	51.4	1.5
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> 1.8 contour
-177.476	51.4	1.8
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-177.514	51.425	1.8
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-177.6	51.4676	1.8