Bonn 2010 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 12: Astrophysics I

EP 12.4: Vortrag

Donnerstag, 18. März 2010, 09:30–09:45, AKM

Modelling the attitude of the Gaia spacecraft — •Ralf Keil1, Daniel Risquez2, Floor van Leeuwen3, and Anthony Brown21ZARM, Bremen, Germany — 2Leiden Observatory, Leiden, The Netherlands — 3Institute of Astronomy, Cambridge, United Kingdom

Modelling the attitude of a satellite is an essential part of the data processing chain for various scientific missions, reaching from past to future projects. For the upcoming European astrometry mission Gaia, the desired accuracy of the scientific output is only achievable, if the behaviour of the satellite can be understood to a very high degree.

The 'Gaia Attitude Model' (GAM) focusses on the development of a simulation environment based on physical principles and effects, complemented by information from the onboard architecture of software and hardware to control the satellite's motion in space. This talk presents the major parts of the GAM and shows the steps in the development of a high-precision tool for simulating Gaia's attitude.

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