PT5 - Testing gravitation theories in space |
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Speaker |
Iorio, Lorenzo |
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Coauthors |
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| Talk Title |
On Testing Frame-Dragging With LAGEOS And A Newly Announced Geodetic Satellite |
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Abstract |
Recently, the launch of a new cannonball geodetic satellite in 2019 with the VEGA C rocket was announced. It is planned to be injected in an essentially circular path with the same semimajor axis of the LAGEOS satellite, in orbit since 1976, and an inclination of its orbital plane supplementary with respect to that of its existing cousin. According to their proponents, the sum of the precessions of the longitudes of their ascending nodes should allow to test the general relativistic Lense-Thirring effect to a 0.2% accuracy level, with a contribution of the mismodelling in the even zonal harmonics of the geopotential to the total error budget as little as 0.1%. We will critically discuss such an ambitious goal. |
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