Launching it is idiotic. If you want to put it away, you could just drill a deep bore hole 2 km down. At that depth, it won't interact with anything and won't c

Launching it is idiotic. If you want to put it away, you could just drill a deep bore hole 2 km down. At that depth, it won't interact with anything and won't come back up except at geological time scale (millions of years). It would be very expensive, but less so than launching it.