baselines
ant[a]-ant[b]: baseline in m (ignoring height component)
1-2: 74.2
1-3: 41.7
1-4: 58.1
1-5: 63.7
1-6: 111.8
1-7: 141.4
2-3: 86.3
2-4: 111.9
2-5: 131.8
2-6: 185.3
2-7: 185.0
3-4: 25.6
3-5: 51.5
3-6: 125.2
3-7: 104.1
4-5: 32.7
4-6: 112.5
4-7: 83.3
5-6: 80.6
5-7: 92.8
6-7: 157.7