title: Moon: two new mascon basins.
abstract: Lunar gravity data and orbital photography indicate that there is a mascon basin approximately 1000 kilometers in diameter on the farside of the moon and that Mare Marginis is the flooded fraction of a mascon basin approximately 900 kilometers in diameter.
authors.forename: M J
authors.initials: MJ
authors.lastname: Campbell
authors.forename: B T
authors.initials: BT
authors.lastname: O'leary
authors.forename: C
authors.initials: C
authors.lastname: Sagan