This graph is the complement of the $\mathrm{NO}_{10}^+(2)$ graph.
| Number of vertices: | $496$ |
| Diameter: | $2$ |
| Intersection array: | $\{240,119;1,112\}$ |
| Spectrum: | $240^1 16^{155} (-8)^{340}$ |
| Automorphism group: | $\mathrm{PSO}^+(10,2) \cong \mathrm{O}^+(10,2):2$ |
| Distance-transitive: | Yes |
| Primitive |