Minimal stick candidate for 8.21

8₂₁ minimal stick candidate (9 vertices)

1.535070 0.612785 1.627148
-2.477182 -1.014921 -1.792769
0.484394 3.840629 -0.319532
1.654673 -2.560933 1.163740
-0.899851 -0.104727 -1.834934
-1.706051 1.129508 2.036837
2.598112 -2.646277 -0.967209
-2.767674 -1.485526 1.037650
1.578553 2.229342 -0.950890