| Real angle (˚) | Average error (˚) | Maximum error (˚) | Minimum error (˚) |
| −90 | −26.76 | −20.88 | −32.36 |
| −78.75 | −18.11 | −12.71 | −23.93 |
| −67.5 | −12.68 | −8.09 | −16.35 |
| −56.25 | −9.01 | −4.08 | −13.13 |
| −45 | −5.77 | −1.44 | −9.88 |
| −33.75 | −3.33 | 0.97 | −8.93 |
| −22.5 | −2.71 | 0.86 | −7.61 |
| −11.25 | −2.85 | 1.58 | −6.89 |
| 0 | −1.34 | 2.01 | −6.04 |
| 11.25 | −0.89 | 3.52 | −4.34 |
| 22.5 | −0.50 | 5.52 | −4.16 |
| 33.75 | 0.22 | 5.22 | −4.22 |
| 45 | 0.99 | 5.77 | −3.19 |
| 56.25 | 1.97 | 8.06 | −2.56 |
| 67.5 | −0.03 | 8.09 | −8.08 |
| 78.75 | 51.84 | 167.13 | −9.63 |
| 90 | 160.33 | 169.12 | 151.92 |