| Number of vertices: | $990$ |
| Diameter: | $8$ |
| Intersection array: | $\{7,6,4,4,4,1,1,1;1,1,1,2,4,4,6,7\}$ |
| Spectrum: | $7^1 5^{42} 4^{55} \frac{1}{2}(-1+\sqrt{33})^{210} 1^{154} 0^{198} (-3)^{99} \frac{1}{2}(-1-\sqrt{33})^{210} (-4)^{21}$ |
| Automorphism group: | $3.M_{22}:2$ |
| Distance-transitive: | Yes |
| Antipodal |
Acknowledgement: thanks to Eamonn O'Brien, Jürgen Müller, Dima Pasechnik and Frank Lübeck for their help with this graph.