Latest advances in an astrometric model based on the Time Transfer Functions formalism
Abstract
Given the extreme accuracy of modern space astrometry, a precise relativistic modeling of observations is required. Moreover, the availability of several models formulated in different and independent ways is a security against the presence of systematic errors in the analysis of future experimental results, like in the case of the Gaia mission. In this work, we simulate a series of observations using the two models to be used for the data analysis of Gaia, the Gaia RElativistic Model (GREM) and the Relativistic Astrometric MODel (RAMOD), and we compare them with the results of our astrometric model based on the Time Transfer Functions.
Keywords
Cite
@article{arxiv.1401.1366,
title = {Latest advances in an astrometric model based on the Time Transfer Functions formalism},
author = {Stefano Bertone and Alberto Vecchiato and Christophe Le Poncin-Lafitte and Mariateresa Crosta and Luca Bianchi},
journal= {arXiv preprint arXiv:1401.1366},
year = {2014}
}
Comments
4 pages, 2 figures, submitted to the Proceedings of the "Journ\'ees Syst\`emes de R\'ef\'erence Spatio-Temporels 2013"