> 5 contour
29.629	-5.91048	5
29.679	-5.9101	5
29.729	-5.91048	5
29.7625	-5.924	5
29.779	-5.92971	5
29.829	-5.95129	5
29.8399	-5.974	5
29.829	-6.0198	5
29.8266	-6.024	5
29.829	-6.02574	5
29.8662	-6.074	5
29.879	-6.10874	5
29.8866	-6.124	5
29.8961	-6.174	5
29.8945	-6.224	5
29.879	-6.26393	5
29.8764	-6.274	5
29.879	-6.27933	5
29.8967	-6.324	5
29.879	-6.34287	5
29.829	-6.34868	5
29.8178	-6.374	5
29.8171	-6.424	5
29.779	-6.4419	5
29.729	-6.46125	5
29.679	-6.4617	5
29.629	-6.46125	5
29.579	-6.4419	5
29.5409	-6.424	5
29.529	-6.41895	5
29.4807	-6.374	5
29.479	-6.37194	5
29.4397	-6.324	5
29.429	-6.30135	5
29.4168	-6.274	5
29.4042	-6.224	5
29.4031	-6.174	5
29.4095	-6.124	5
29.4274	-6.074	5
29.429	-6.07092	5
29.4571	-6.024	5
29.479	-5.99941	5
29.5025	-5.974	5
29.529	-5.95129	5
29.579	-5.92971	5
29.5955	-5.924	5
29.629	-5.91048	5
> 10 contour
29.579	-6.07239	10
29.629	-6.03564	10
29.679	-6.0319	10
29.727	-6.074	10
29.729	-6.07594	10
29.7776	-6.124	10
29.779	-6.12819	10
29.7988	-6.174	10
29.7922	-6.224	10
29.779	-6.24307	10
29.7687	-6.274	10
29.748	-6.324	10
29.729	-6.33644	10
29.679	-6.34312	10
29.629	-6.33644	10
29.61	-6.324	10
29.579	-6.30119	10
29.5519	-6.274	10
29.529	-6.22895	10
29.5268	-6.224	10
29.5226	-6.174	10
29.529	-6.1502	10
29.5355	-6.124	10
29.5771	-6.074	10
29.579	-6.07239	10
> 15 contour
29.629	-6.09064	15
29.679	-6.078	15
29.7252	-6.124	15
29.729	-6.12775	15
29.7643	-6.174	15
29.7368	-6.224	15
29.7313	-6.274	15
29.729	-6.27734	15
29.679	-6.2952	15
29.629	-6.27734	15
29.6251	-6.274	15
29.5841	-6.224	15
29.579	-6.18189	15
29.5778	-6.174	15
29.579	-6.17114	15
29.5953	-6.124	15
29.629	-6.09064	15
> 20 contour
29.679	-6.1053	20
29.6978	-6.124	20
29.729	-6.15465	20
29.7438	-6.174	20
29.729	-6.19696	20
29.7122	-6.224	20
29.679	-6.26324	20
29.629	-6.22898	20
29.6248	-6.224	20
29.6078	-6.174	20
29.629	-6.13522	20
29.6407	-6.124	20
29.679	-6.1053	20