Projections of the 3D Cartesian representations of the correlation functions onto the $q_{out}$, $q_{side}$ and $q_{long}$ axes, for events with $17 \leq N_{ch} \leq 22$, for three $k_{\rm T}$ ranges. To project onto one $q$-component, the others are integrated over the range $0-0.16 $GeV/$c$