> 0.6 contour -Z0.6
-169.4951	52.8466900135	0.6
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> 0.6 contour -Z0.6
-169.2201	52.7932633641	0.6
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> 1.2 contour -Z1.2
-169.3701	52.765758936	1.2
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-169.571860794	52.6405726027	1.2
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> 1.8 contour -Z1.8
-169.3951	52.7218657864	1.8
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> 2.4 contour -Z2.4
-169.3951	52.6955912384	2.4
-169.3701	52.7010969806	2.4
-169.3451	52.702791369	2.4
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-169.4201	52.6858391497	2.4
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-169.3951	52.6955912384	2.4
> 3 contour -Z3
-169.3951	52.675363132	3
-169.3701	52.6824831466	3
-169.3451	52.684571045	3
-169.3201	52.6824832905	3
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-169.25503151	52.6405726027	3
-169.255056719	52.6156273973	3
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-169.276986026	52.5906821918	3
-169.2951	52.5808542007	3
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-169.4201	52.5969906769	3
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> 3.6 contour -Z3.6
-169.3701	52.6666053321	3.6
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> 4.2 contour -Z4.2
-169.3701	52.6482380155	4.2
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-169.3701	52.6482380155	4.2