Relativistic stellar aberration for the Space Interferometry Mission: parallax analysis
نویسنده
چکیده
This paper is a continuation of our previous analysis (i.e. Turyshev 2002a, 2002b) of the relativistic stellar aberration requirements for the Space Interferometry Mission (SIM). Here we have considered a problem of how the expected astrometric accuracy of parallax determination will constrain the accuracy of the spacecraft navigation. We show that effect of the spacecraft’s navigational errors on the accuracy of parallax determination with SIM will be negligible. We discuss the implication of the results obtained for the future mission analysis. Subject headings: astrometry; techniques: interferometric, SIM; methods: analytical; solar system; relativity
منابع مشابه
- qc / 0 20 50 62 v 1 1 5 M ay 2 00 2 Relativistic stellar aberration for the Space Interferometry Mission ( 2 )
We address the issue of relativistic stellar aberration requirements for the Space Interferometry Mission (SIM). Motivated by the importance of this issue for SIM, we have considered a problem of relative astrometric observations of two stars separated by angle θ on the sky with a single baseline interferometer. While a definitive answer on the stellar aberration issue may be obtained only in n...
متن کاملRelativistic stellar aberration for the Space Interferometry Mission
This paper analyses the relativistic stellar aberration requirements for the Space Interferometry Mission (SIM). We address the issue of general relativistic deflection of light by the massive self-gravitating bodies. Specifically, we present estimates for corresponding deflection angles due to the monopole components of the gravitational fields of a large number of celestial bodies in the sola...
متن کاملNumerical Data-Processing Simulations of Microarcsecond Classical and Relativistic Effects in Space Astrometry
The accuracy of astrometric observations conducted via a space-borne optical interferometer orbiting the Earth is expected to approach a few microarcseconds. Data processing of such extremely high-precision measurements requires access to a rigorous relativistic model of light ray propagation developed in the framework of General Relativity. The data-processing of the space interferometric obse...
متن کاملNumerical Data-Processing Simulations of Microarcsecond Classical and Relativistic E ects in Space Astrometry
The accuracy of astrometric observations conducted via a space-borne optical interferometer orbiting the Earth is expected to approach a few microarcseconds. Data processing of such extremely highprecision measurements requires access to a rigorous relativistic model of light ray propagation developed in the framework of General Relativity. The data-processing of the space interferometric obser...
متن کاملObervational Model for Microarcsecond Astrometry with the Space Interferometry Mission
The Space Interferometry Mission (SIM) is a space-based long-baseline optical interferometer for precision astrometry. One of the primary objectives of the SIM instrument is to accurately determine the directions to a grid of stars, together with their proper motions and parallaxes, improving a priori knowledge by nearly three orders of magnitude. The basic astrometric observable of the instrum...
متن کامل