The halved graph is the Grassmann graph J3(5,2). Note that this is not the bipartite double of J3(5,2).
| Number of vertices: | 2420 |
| Diameter: | 5 |
| Intersection array: | {13,12,12,9,9;1,1,4,4,13} |
| Spectrum: | 131(4√3)12031089(−3)1089(−4√3)120(−13)1 |
| Distance-transitive: | Yes |
| Bipartite |