| Number of vertices: | $1021$ |
| Diameter: | $2$ |
| Intersection array: | $\{510,255;1,255\}$ |
| Spectrum: | $510^1 \left(\frac{-1+\sqrt{1021}}{2}\right)^{510} \left(\frac{-1-\sqrt{1021}}{2}\right)^{510}$ |
| Automorphism group: | $1021:510$ |
| Distance-transitive: | Yes |
| Primitive |