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> 0.008 contour
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> 0.012 contour
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> 0.012 contour
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-177.6	51.975	0.016
> 0.016 contour
-177.6	51.7622	0.016
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-177.55	51.7637	0.016
-177.531	51.75	0.016
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> 0.02 contour
-177.22	51.4	0.02
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-177.235	51.425	0.02
-177.25	51.45	0.02
-177.25	51.45	0.02
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> 0.024 contour
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-177.6	51.6321	0.024