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Evidence of the gravitomagnetic field of Mars

Lorenzo Iorio
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Abstract

According to general relativity, the gravitomagnetic Lense-Thirring force of Mars would secularly shift the orbital plane of the Mars Global Surveyor (MGS) spacecraft by an amount of 1.5 m, on average, in the cross-track direction over 5 years. The determined cross-track post-fit residuals of MGS, built up by neglecting just the gravitomagnetic force in the dynamical force models and without fitting any empirical cross-track acceleration which could remove the relativistic signal, amount to 1.6 m, on average, over a 5-years time interval spanning from 10 February 2000 to 14 January 2005. The discrepancy with the predictions of general relativity is 6%.

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Lorenzo Iorio. 2006-06-21. Evidence of the gravitomagnetic field of Mars. https://doi.org/10.1088/0264-9381%2F23%2F17%2Fn01

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