| Turnpoint | Distance | Direction | Observation zone |
|---|---|---|---|
| Sudbury | 11.59 km | 150.8° | Line 10.00 km (Radius 5.00 km) |
| Great Ashfield | 28.75 km | 30.7° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Ely | 48.42 km | 289.2° | Symmetric, Rmin=0.50 km, Rmax=20.00 km, Angle=90.0°, Cylinder R=0.50 km |
| Wormingford | 62.56 km | 143.6° | Line 1.00 km (Radius 0.50 km) |
| Total: | 139.73 km | ||