> 3 contour -Z3
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> 6 contour -Z6
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> 9 contour -Z9
-176.2058	51.81831591	9
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-175.725686473	51.66896	9
-175.72084628	51.64412	9
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-175.8808	51.4535873953	9
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-176.0558	51.4229042753	9
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-176.1308	51.4279352287	9
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-176.2308	51.4535884122	9
-176.2558	51.4642692585	9
-176.267586251	51.47024	9
-176.2808	51.4771652127	9
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-176.308701091	51.49508	9
-176.3308	51.5128625051	9
-176.338602326	51.51992	9
-176.3558	51.5393652044	9
-176.360309786	51.54476	9
-176.375745922	51.5696	9
-176.3808	51.5825576547	9
-176.385630823	51.59444	9
-176.390658488	51.61928	9
-176.390750873	51.64412	9
-176.38591068	51.66896	9
-176.3808	51.6817309328	9
-176.376166782	51.6938	9
-176.360908891	51.71864	9
-176.3558	51.7247732667	9
-176.339303858	51.74348	9
-176.3308	51.7511745686	9
-176.309477115	51.76832	9
-176.3058	51.7709077635	9
-176.2808	51.7866539726	9
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-176.206711444	51.818	9
-176.2058	51.81831591	9
> 12 contour -Z12
-176.1058	51.7719204201	12
-176.0808	51.7747178308	12
-176.0558	51.7756263883	12
-176.0308	51.7747180027	12
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-175.911636475	51.74348	12
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-175.872408542	51.71864	12
-175.8558	51.7024892203	12
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-175.8332406	51.66896	12
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-175.826121902	51.64412	12
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-175.8308	51.6039080501	12
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-175.8558	51.561239619	12
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-175.8808	51.5386647808	12
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-175.9558	51.5021630421	12
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-176.0058	51.4915013891	12
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-176.0558	51.4877718585	12
-176.0808	51.4886863201	12
-176.1058	51.4915018286	12
-176.124309467	51.49508	12
-176.1308	51.4961412896	12
-176.1558	51.5021638828	12
-176.1808	51.5109860052	12
-176.19961343	51.51992	12
-176.2058	51.5229836616	12
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-176.2558	51.5612426925	12
-176.263459093	51.5696	12
-176.27818646	51.59444	12
-176.2808	51.6039175471	12
-176.285409424	51.61928	12
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-176.2808	51.6599550101	12
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-176.263747735	51.6938	12
-176.2558	51.7024862105	12
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-176.2308	51.7249923544	12
-176.2058	51.7405979681	12
-176.199960906	51.74348	12
-176.1808	51.7525478796	12
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-176.124532947	51.76832	12
-176.1058	51.7719204201	12
> 15 contour -Z15
-176.1308	51.7263376243	15
-176.1058	51.7327924209	15
-176.0808	51.7363030845	15
-176.0558	51.737410341	15
-176.0308	51.7363033389	15
-176.0058	51.732792936	15
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-175.961352858	51.71864	15
-175.9558	51.7164046125	15
-175.9308	51.7023329047	15
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-175.887783514	51.64412	15
-175.887827164	51.61928	15
-175.897720631	51.59444	15
-175.9058	51.5845302391	15
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-175.9308	51.5611972392	15
-175.9558	51.5470743953	15
-175.961532083	51.54476	15
-175.9808	51.5371088285	15
-176.0058	51.5306253157	15
-176.0308	51.5270989905	15
-176.0558	51.5259869544	15
-176.0808	51.5270992395	15
-176.1058	51.5306258803	15
-176.1308	51.5371097001	15
-176.150065172	51.54476	15
-176.1558	51.5470755967	15
-176.1808	51.5611992115	15
-176.192002381	51.5696	15
-176.2058	51.5845336155	15
-176.213876491	51.59444	15
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-176.223813787	51.64412	15
-176.214008289	51.66896	15
-176.2058	51.6790475011	15
-176.192186179	51.6938	15
-176.1808	51.7023310083	15
-176.1558	51.716403386	15
-176.150244294	51.71864	15
-176.1308	51.7263376243	15
> 18 contour -Z18
-176.1058	51.6992482483	18
-176.0808	51.7064550835	18
-176.0558	51.708614541	18
-176.0308	51.706455595	18
-176.0058	51.6992494363	18
-175.995191809	51.6938	18
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-175.940023903	51.64412	18
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-175.9808	51.5759133942	18
-175.995269374	51.5696	18
-176.0058	51.5641780322	18
-176.0308	51.5569487825	18
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-176.0808	51.5569492747	18
-176.1058	51.5641791836	18
-176.11632792	51.5696	18
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-176.156813885	51.59444	18
-176.171542941	51.61928	18
-176.171573387	51.64412	18
-176.156962619	51.66896	18
-176.1558	51.6699199743	18
-176.1308	51.6875310402	18
-176.11640544	51.6938	18
-176.1058	51.6992482483	18
> 21 contour -Z21
-176.1058	51.6735697276	21
-176.0808	51.6814590494	21
-176.0558	51.6838473333	21
-176.0308	51.6814596119	21
-176.0058	51.6735709618	21
-175.997287371	51.66896	21
-175.9808	51.6529323514	21
-175.974083576	51.64412	21
-175.974105205	51.61928	21
-175.9808	51.6105065891	21
-175.997331799	51.59444	21
-176.0058	51.5898477917	21
-176.0308	51.5819440485	21
-176.0558	51.5795511964	21
-176.0808	51.5819445909	21
-176.1058	51.5898490426	21
-176.114265557	51.59444	21
-176.1308	51.6105099787	21
-176.137492042	51.61928	21
-176.137513658	51.64412	21
-176.1308	51.6529289386	21
-176.114309998	51.66896	21
-176.1058	51.6735697276	21
> 24 contour -Z24
-176.0808	51.6549141749	24
-176.0558	51.6593528156	24
-176.0308	51.6549151937	24
-176.012085531	51.64412	24
-176.012099904	51.61928	24
-176.0308	51.6084884704	24
-176.0558	51.6040457838	24
-176.0808	51.6084894575	24
-176.099496769	51.61928	24
-176.0995111	51.64412	24
-176.0808	51.6549141749	24