> 9 contour
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-174.544	-17.1936	9
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-174.794	-17.2292	9
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-174.711	-17.2151	9
> 18 contour
-174.627	-18.2674	18
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> 18 contour
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> 18 contour
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> 18 contour
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> 27 contour
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> 27 contour
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> 36 contour
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> 45 contour
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> 45 contour
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