I was listening to Houston We Have A Podcast and they mentioned that spare payload on ISS supply/crew runs frequently get filled with cubesats which get (more elegantly than the word suggests) tossed out of the station to insert them into orbit.
It occurred to me that if they're tossing these retrograde they're getting free stationkeeping dV? That seems likely to put the cubesat into a more rapidly decaying orbit, but cubesats are cheap. That's the whole point.
So, since they have a mechanism for launching these... which way are they going?