Latest advances in an astrometric model based on the Time Transfer Functions formalism

Bertone, Stefano; Vecchiato, A; Le Poncin-Lafitte, C; Crosta, M; Bianchi, L (January 2014). Latest advances in an astrometric model based on the Time Transfer Functions formalism. In: Journées 2013 "Systèmes de référence spatio-temporels" (pp. 16-19). Observatoire de Paris

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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.

Item Type:

Conference or Workshop Item (Paper)


08 Faculty of Science > Institute of Astronomy

UniBE Contributor:

Bertone, Stefano


500 Science > 520 Astronomy




Observatoire de Paris




Pierre Fridez

Date Deposited:

20 Jun 2018 11:38

Last Modified:

05 Dec 2019 09:48

Additional Information:

Presentation; Titre de livre: Proceedings of the Journées 2013 "Systèmes de référence spatio-temporels": Scientific developments from highly accurare space-time reference systems / edited by Nicole Capitaine

Uncontrolled Keywords:

General Relativity and Quantum Cosmology, Astrophysics - Instrumentation and Methods for Astrophysics




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