The angular components of the J _orb vector of each satellite, as a function of time, for satellites in the Aq-C ^α simulation. Satellite samples are divided according to belonging (left panels) or not (right panels) to KPPs; see Table 1, second column. Vertical lines mark the halo virialization time, T _vir, i.e., roughly the moment when the halo decouples from cosmic expansion. Satellite IDs are color-coded in the legends.