Observation point | I | J | K |
OBS 1 | 54 | 25 | 2 |
OBS 2 | 58 | 29 | 2 |
OBS 3 | 64 | 35 | 2 |
OBS 4 | 60 | 39 | 2 |
OBS 5 | 60 | 52 | 2 |
OBS 6 | 60 | 58 | 2 |