Celestial Mechanics Experiment

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Science  29 Dec 1967:
Vol. 158, Issue 3809, pp. 1689-1690
DOI: 10.1126/science.158.3809.1689


Equipment on Mariner V has yielded values for the masses of Moon and Venus more accurate than any previously reported. Range and Doppler radio tracking data necessary for precise space navigation of the spacecraft from Earth to Venus can also be used to obtain data on the orbits of Earth and Venus.