The Moon's Orbit will be Destablized by TransOrbital

>
> > Plus there
> > was an Explorer orbiter in the 1980's some time which
> > probably impacted.
>
> There was? Hadn't heard of that one. I thought there
> was nothing between the last Luna and Hiten?

There was an obscure Explorer, some kind of radio astronomy mission, it
actually did no lunar science at all, but was put into lunar orbit for
astronomy reasons. I remember it deployed some very long whip antennas.
But I cannot find anything about it on astronautix.