> Maneuvering for a rendezvous (intercept), given 5-40 hours time, is very cheap in terms of ∆V (fuel used).
Only if you're in approximately the same orbital inclination. Plane change maneuvers once in LEO are very expensive in delta V.
Only if you're in approximately the same orbital inclination. Plane change maneuvers once in LEO are very expensive in delta V.
Raising the apogee, then changing the inclination there is relatively cheap - and you can adjust the plane change and apogee to time a collision. Remember - there is no need to recircularize. Just collide. If the goal was to recircularize then I don't know if raising the apogee would be worth it, maybe for extreme cases. But not for a collision.