| Parameter | Traditional design method | Inverse method | ||
| Bare mirror of M1 | Bare mirror of M2 | Bare mirror of M1 | Bare mirror of M2 | |
| Radius/mm | −171.6621 | −177.2363 | −171.6621 | −177.2363 |
| Conic | 0.1695 | 5.3664 | 0.1695 | 5.3664 |
| 2th order term | 0 | 0 | 0 | 0 |
| 4th order term | 2.5708 × 10−10 | −3.4308 × 10−8 | 2.5708 × 10−10 | −3.4320 × 10−8 |
| 6th order term | 9.1691 × 10−16 | −3.3662 × 10−12 | 9.1691 × 10−16 | −3.3574 × 10−12 |
| 8th order term | −7.2417 × 10−19 | −1.5888 × 10−15 | −7.2417 × 10−19 | −1.5948 × 10−15 |