Effect of the 2nd degree and order geopotential coefficient on the Lense-Thirring experiment and on the gravitomagnetic clock effect
نویسنده
چکیده
The impact of the mismodelling in the Earth’s geopotential coefficient C22 on the detection of the general relativistic Lense-Thirring and gravitomagnetic clock effects is investigated. The systematic error induced on the Lense-Thirring LAGEOS experiment amounts to almost 1%. Regarding the gravitomagnetic clock effect, the systematic error induced on the satellite’s azimuthal location is 1-2 orders of magnitude larger than the maximum allowable error in order to make feasible the measurement of this general relativistic feature.
منابع مشابه
A new approach for investigating secular variations of the low-degree geopotential coefficients
Recent tests aimed at the detection of the general relativistic gravitomagnetic Lense-Thirring effect in the gravitational field of the Earth with the LAGEOS and LAGEOS II satellites have proved to be affected, among other things, by the corrupting impact of the secular variations J̇4 and J̇6 of the second and third even zonal harmonic coefficients of the multipolar expansion of the terrestrial g...
متن کاملGravitomagnetic time delay and the Lense-Thirring effect in Brans-Dicke theory of gravity
We discuss the gravitomagnetic time delay and the Lense-Thirring effect in the context of Brans-Dicke theory of gravity. We compare the theoretical results obtained with those predicted by general relativity.We show that within the accurarcy of experiments designed to measure these effects both theories predict essentially the same result.
متن کاملTowards a 1% measurement of the Lense- Thirring effect with LARES?
After the recent approval by the Italian Space Agency (ASI) of the LARES mission, which will be launched at the end of 2008 by a VEGA rocket to measure the general relativistic gravitomagnetic Lense-Thirring effect by combining LARES data with those of the existing LAGEOS and LAGEOS II satellites, it is of the utmost importance to assess if the claimed accuracy . 1% will be realistically obtain...
متن کاملar X iv : g r - qc / 0 60 10 21 v 1 5 J an 2 00 6 On the mean anomaly and the Lense - Thirring effect
In this brief note we reply to the authors of a recent preprint in which an alleged explicit proposal of using the mean anomaly of the LAGEOS satellites to measure the general relativistic Lense-Thirring effect in the gravitational field of the Earth is attributed to the present author. The authors of the recent preprint [1], posted on 4th January 2006, claim that the present author would have ...
متن کاملIs it possible to improve the present LAGEOS Lense–Thirring experiment?
The Lense-Thirring effect is currently being measured by means of a combination of the orbital residuals of the nodes of LAGEOS and LAGEOS II and the perigee of LAGEOS II. The total error is of the order of 20%. The most insidious systematic error is due to the mismodelled even zonal harmonics of the geopotential and amounts to 12.9%, according to EGM96 model. The role and the importance of the...
متن کامل