See Project for Testing Gravity in Space: Current Status and New Estimates

Details See Project for Testing Gravity in Space: Current Status and New Estimates See Project for Testing Gravity in Space: Current Status and New Estimates

2000-02-25

arxiv.org/abs/gr-qc/0002088v1

Grav.Cosmol. 5 (1999) 67-78

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 3 figures

Scientific paper

We describe some new estimates concerning the recently proposed SEE (Satellite Energy Exchange) experiment for measuring the gravitational interaction parameters in space. The experiment entails precision tracking of the relative motion of two test bodies (a heavy "Shepherd", and a light "Particle") on board a drag-free capsule. The new estimates include (i) the sensitivity of Particle trajectories and G measurement to the Shepherd quadrupole moment uncertainties; (ii) the measurement errors of G and the strength of a putative Yukawa-type force whose range parameter $\lambda$ may be either of the order of a few metres or close to the Earth radius; (iii) a possible effect of the Van Allen radiation belts on the SEE experiment due to test body electric charging

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