| Image set | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | SD |
| Center x | −0.01 | −0.00 | −0.01 | −0.00 | −0.01 | −0.00 | −0.01 | −0.00 | −0.01 | −0.00 | <0.01 |
| Center y | 0.01 | 0.01 | 0.01 | 0.00 | 0.01 | 0.01 | 0.01 | 0.00 | 0.01 | 0.00 | <0.01 |
| Diameter | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.14 | 0.12 | 0.14 | 0.12 | 0.14 | <0.01 |