Gravity Field of Jupiter from Pioneer 11 Tracking Data

Science  02 May 1975:
Vol. 188, Issue 4187, pp. 476-477
DOI: 10.1126/science.188.4187.476


Significantly improved values of the zonal gravity harmonic coefficients J39 J4, and J6 of Jupiter have been obtained from a preliminary analysis of Pioneer 11 spacecraft Doppler data taken while the spacecraft was near Jupiter. The new results, which will have an important application as boundary conditions for theoretical models of Jupiter's interior. are consistent with a planet in hydrostatic equilibrium.