| Random σ and systematic Σ error [mm] | Margin [mm] | |||||||
---|---|---|---|---|---|---|---|---|---|
Direction | LR | SI | AP | LR | SI | AP | |||
 | Σ | σ | Σ | σ | Σ | σ |  |  |  |
No correction | 2.0 | 2.9 | 2.7 | 3.9 | 2.6 | 4.3 | 7.0 | 9.5 | 9.5 |
Correction 1×/week | 1.9 | 2.8 | 2.3 | 3.5 | 2.4 | 3.9 | 6.7 | 8.2 | 8.7 |
Correction 3×/week | 1.6 | 2.5 | 1.8 | 3.0 | 1.7 | 3.3 | 5.8 | 6.6 | 7.7 |
Correction 5×/week | 1.4 | 2.0 | 1.4 | 2.3 | 1.3 | 2.2 | 4.9 | 5.1 | 4.8 |