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Accurate Modelling the Attitude of the Gaia Satellite

  • C. Turon, F. Meynadier, F. Arenou, D. Risquez (a1), R. Keil (a2), F. van Leeuwen (a3) and A.G.A. Brown (a1)...

Abstract

The Gaia Attitude Model (GAM) is a simulation package that is developed to achieve a detailed understanding of the Gaia spacecraft attitude. It takes into account external physical effects and considers internal hardware components controlling the satellite. The main goal of the Gaia mission is to obtain extremely accurate astrometry, and this requires a good knowledge of Gaia’s behaviour as a spinning rigid body under the influence of various disturbances.

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[1] de Bruijne, J., 2008, “Torques caused by the Phased-Array Antenna (PAA)”, Gaia technical note GAIA-CH-TN-ESA-JDB-042
[2] EADS Astrium, 2007, “Satellite Requirements Specification (SRS)”, GAIA.ASF.SP.SAT.00001
[3] Ernst, R., 2007, “Momentum transfer to orbiting satellites by micrometeoroid impacts”
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[5] Keil, R., Risquez, D., Leeuwen, F., & Brown, A.G.A., “Gaia Attitude Model: Main Description”, Space Sci. Rev., in preparation
[6] van Leeuwen, F., 2007, “Hipparcos, the New Reduction of the Raw Data”, Astrophysics and Space Science Library, 350
[7] Lindegren, L., Babusiaux, C., Bailer-Jones, et al., 2008, “The Gaia mission: science, organization and present status”, IAU Symposium, 248
[8] Lindegren, L., & Luri, X., 2007, “A model of noisy attitude for cycle 3 simulations”, Gaia technical note LL-073
[9] Prusti, T., 2010, “General Status of the Gaia Mission and Expected Performance”
[10] Risquez, D., 2008, “Physical Effects in the Gaia Attitude Model: Solar Radiation Pressure”, Gaia technical note GAIA-C2-TN-LEI-DRO-001
[11] Risquez, D., 2009, “Physical Effects in the Gaia Attitude Model: Micro-Meteoroids”, Gaia technical note GAIA-C2-TN-LEI-DRO-002
[12] Risquez, D., & Brown, A., 2009, “Physical Effects in the Gaia Attitude Model: Thermal Infrared Emission”, Gaia technical note GAIA-C2-TN-LEI-DRO-004
[13] Risquez, D., Keil, R., Leeuwen, F., & Brown, A.G.A., “Gaia Attitude Model: Disturbances”, Space Sci. Rev., in preparation
[14] Risquez, D., & Keil, R., 2010, “Gaia Attitude Model: Micro-Propulsion Sub-System”, Gaia technical note GAIA-C2-TN-LEI-DRO-003
[15] Risquez, D., 2010, “Gaia Attitude Model: Star Tracker”, Gaia technical note GAIA-C2-TN-LEI-DRO-005
[16] Risquez, D., 2010, “Gaia Attitude Model: Star Velocities Estimator”, Gaia technical note GAIA-C2-TN-LEI-DRO-006

Accurate Modelling the Attitude of the Gaia Satellite

  • C. Turon, F. Meynadier, F. Arenou, D. Risquez (a1), R. Keil (a2), F. van Leeuwen (a3) and A.G.A. Brown (a1)...

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