> 3 contour
-174.599	-19.4642	3
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> 6 contour
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-174.744	-19.8754	6
-174.683	-19.8269	6
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> 9 contour
-174.599	-19.8958	9
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-174.414	-19.9254	9
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-174.711	-19.9754	9
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> 12 contour
-174.599	-19.9517	12
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-174.672	-20.0754	12
-174.68	-20.0254	12
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-174.599	-19.9517	12
> 15 contour
-174.516	-19.9591	15
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-174.427	-20.0254	15
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-174.635	-20.0254	15
-174.599	-19.9956	15
-174.559	-19.9754	15
-174.516	-19.9591	15