Here it is: https://www.centauri-dreams.org/2017/11/10/project-lyra-sending-a-spacecraft-to-1ioumuamua-formerly-a2017-u1-the-interstellar-asteroid/ https://www.

Here it is: https://www.centauri-dreams.org/2017/11/10/project-lyra-sending-a-spacecraft-to-1ioumuamua-formerly-a2017-u1-the-interstellar-asteroid/ https://www.centauri-dreams.org/2017/11/10/project-lyra-send... Jupiter flyby first that drops the perhelion to 3 solar radii (!) and the a high thrust SRB burn for maximum Obert effect on reaching perhelion. Looks like it can give you up to 70 km/s of delta-v. :)