The halved graph is the Grassmann graph $\mathrm{J}_3(5,2)$. Note that this is not the bipartite double of $\mathrm{J}_3(5,2)$.
| Number of vertices: | $2420$ |
| Diameter: | $5$ |
| Intersection array: | $\{13,12,12,9,9;1,1,4,4,13\}$ |
| Spectrum: | $13^1 (4 \sqrt{3})^{120} 3^{1089} (-3)^{1089} (-4 \sqrt{3})^{120} (-13)^1$ |
| Distance-transitive: | Yes |
| Bipartite |