This file contains the gravity gradients used in the analyses contained in this paper. The file is a zipped text file, containing a 1303x2605 matrix, rearranged into a single column. The data is the GRAIL Bouguer gravity gradient, with a high-pass filter applied between degrees 40 and 60, and a low-pass filter applied between degreed 350 and 650, calculated on spherical harmonic degree 50 topography as the reference surface.