> 5 contour
273.146	11.7804	5
273.196	11.7902	5
273.246	11.7991	5
273.296	11.7902	5
273.346	11.7804	5
273.38	11.759	5
273.396	11.7496	5
273.446	11.7131	5
273.45	11.709	5
273.485	11.659	5
273.496	11.6341	5
273.509	11.609	5
273.522	11.559	5
273.526	11.509	5
273.52	11.459	5
273.5	11.409	5
273.496	11.4024	5
273.473	11.359	5
273.446	11.326	5
273.425	11.309	5
273.396	11.2883	5
273.346	11.2593	5
273.344	11.259	5
273.296	11.2479	5
273.246	11.2379	5
273.196	11.2485	5
273.148	11.259	5
273.146	11.2594	5
273.096	11.2868	5
273.065	11.309	5
273.046	11.3243	5
273.018	11.359	5
272.996	11.4021	5
272.992	11.409	5
272.973	11.459	5
272.966	11.509	5
272.97	11.559	5
272.983	11.609	5
272.996	11.6341	5
273.007	11.659	5
273.041	11.709	5
273.046	11.714	5
273.096	11.7499	5
273.112	11.759	5
273.146	11.7804	5
> 10 contour
273.196	11.6647	10
273.246	11.6801	10
273.296	11.6648	10
273.309	11.659	10
273.346	11.6431	10
273.375	11.609	10
273.394	11.559	10
273.396	11.5267	10
273.399	11.509	10
273.396	11.4988	10
273.39	11.459	10
273.36	11.409	10
273.346	11.3936	10
273.296	11.3709	10
273.246	11.3592	10
273.196	11.3725	10
273.146	11.3949	10
273.132	11.409	10
273.102	11.459	10
273.096	11.4992	10
273.093	11.509	10
273.096	11.5267	10
273.098	11.559	10
273.117	11.609	10
273.146	11.6431	10
273.183	11.659	10
273.196	11.6647	10
> 15 contour
273.196	11.6104	15
273.246	11.6239	15
273.296	11.6104	15
273.298	11.609	15
273.346	11.5703	15
273.353	11.559	15
273.359	11.509	15
273.346	11.4681	15
273.342	11.459	15
273.296	11.4227	15
273.251	11.409	15
273.246	11.4072	15
273.242	11.409	15
273.196	11.4247	15
273.151	11.459	15
273.146	11.471	15
273.133	11.509	15
273.139	11.559	15
273.146	11.5702	15
273.194	11.609	15
273.196	11.6104	15
> 20 contour
273.196	11.5771	20
273.246	11.591	20
273.296	11.5771	20
273.316	11.559	20
273.331	11.509	20
273.296	11.4599	20
273.294	11.459	20
273.246	11.4367	20
273.202	11.459	20
273.196	11.4622	20
273.161	11.509	20
273.176	11.559	20
273.196	11.5771	20
> 25 contour
273.246	11.5651	25
273.263	11.559	25
273.296	11.5351	25
273.307	11.509	25
273.296	11.4929	25
273.246	11.463	25
273.196	11.4936	25
273.185	11.509	25
273.196	11.5351	25
273.229	11.559	25
273.246	11.5651	25