> 5 contour
51.457	30.2295	5
51.507	30.2362	5
51.5207	30.227	5
51.5251	30.177	5
51.557	30.1755	5
51.5917	30.177	5
51.607	30.178	5
51.6098	30.177	5
51.657	30.1631	5
51.707	30.1484	5
51.739	30.127	5
51.757	30.1135	5
51.7989	30.077	5
51.807	30.0671	5
51.8337	30.027	5
51.8512	29.977	5
51.857	29.9409	5
51.8601	29.927	5
51.8576	29.877	5
51.857	29.875	5
51.8465	29.827	5
51.8221	29.777	5
51.807	29.757	5
51.7771	29.727	5
51.757	29.7112	5
51.7072	29.677	5
51.707	29.6768	5
51.657	29.6596	5
51.6386	29.627	5
51.607	29.603	5
51.5701	29.627	5
51.557	29.6439	5
51.544	29.627	5
51.507	29.6029	5
51.4751	29.627	5
51.457	29.6594	5
51.407	29.6767	5
51.4066	29.677	5
51.357	29.7112	5
51.337	29.727	5
51.307	29.7574	5
51.2922	29.777	5
51.2673	29.827	5
51.257	29.8718	5
51.2554	29.877	5
51.2539	29.927	5
51.257	29.9409	5
51.2628	29.977	5
51.2652	30.027	5
51.307	30.0741	5
51.316	30.077	5
51.357	30.1125	5
51.3753	30.127	5
51.407	30.1489	5
51.457	30.1636	5
51.5035	30.177	5
51.457	30.2163	5
51.4537	30.227	5
51.457	30.2295	5
> 10 contour
51.457	30.0345	10
51.507	30.0635	10
51.557	30.065	10
51.607	30.0629	10
51.657	30.032	10
51.707	30.0408	10
51.7206	30.027	10
51.7141	29.977	10
51.7323	29.927	10
51.7288	29.877	10
51.707	29.8348	10
51.702	29.827	10
51.657	29.79	10
51.6354	29.777	10
51.607	29.7591	10
51.5644	29.727	10
51.557	29.723	10
51.5496	29.727	10
51.507	29.7586	10
51.457	29.7561	10
51.4318	29.777	10
51.4113	29.827	10
51.407	29.8342	10
51.3852	29.877	10
51.3818	29.927	10
51.3766	29.977	10
51.407	30.013	10
51.4464	30.027	10
51.457	30.0345	10
> 15 contour
51.507	30.0086	15
51.557	30.0191	15
51.607	30.0083	15
51.6455	29.977	15
51.657	29.959	15
51.6761	29.927	15
51.6723	29.877	15
51.657	29.8579	15
51.628	29.827	15
51.607	29.8111	15
51.559	29.777	15
51.557	29.7754	15
51.555	29.777	15
51.507	29.7941	15
51.4692	29.827	15
51.457	29.8593	15
51.4436	29.877	15
51.4379	29.927	15
51.457	29.959	15
51.4685	29.977	15
51.507	30.0086	15
> 20 contour
51.557	29.9937	20
51.5926	29.977	20
51.607	29.9658	20
51.6371	29.927	20
51.6309	29.877	20
51.607	29.8522	20
51.557	29.8298	20
51.5444	29.827	20
51.507	29.8167	20
51.4951	29.827	20
51.4843	29.877	20
51.4769	29.927	20
51.507	29.9658	20
51.5214	29.977	20
51.557	29.9937	20