NASA NTRS · 19760028371
Relativity experiment on Helios - A status report
Abstract
The relativity experiment on Helios (Experiment 11) uses S-band and Doppler data, and spacecraft-solar-orbital data to measure the effects of general relativity in the solar system and the quadrupole moment in the solar gravitational field. Specifically, Experiment 11 is converned with measuring the following effects: (1) relativistic orbital corrections described by two parameters of the space-time metric which are both equal to unity in Einstein's theory; (2) orbital perturbations caused by a finite quadrupole moment of an oblate sun, described by zonal harmonics in the solar gravitational field.
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Anderson, J. D., Melbourne, W. G., Cain, D. L., Lau, E. K., Wong, S. K., Kundt, W.. 1975-07-01. Relativity experiment on Helios - A status report. https://ntrs.nasa.gov/citations/19760028371
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