The same data as Figure 1, but now in action space. The Sausage GCs form an extended sequence in JR, but are tightly clustered in Jϕ and especially Jz. Again, black circles enclose probable members, black open squares possibles; red circles are OHs, blue triangles are YHs, yellow triangles are BDs, green diamonds are SGs, and the gray cross is unknown. The black filled square is Sgr itself. The gray dashed line marks Jϕ = 0. The two cyan dashed lines mark two constant-energy surfaces projected onto the principal planes to provide a rough idea of the action space morphology (see e.g., Figure 3.25 of Binney & Tremaine 2008).