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Proceedings Article

GBOT - ground based optical tracking of the Gaia satellite

[+] Author Affiliations
Martin Altmann, Sebastian G. Els

Univ. Heidelberg (Germany)

Sebastien Bouquillon, Francois Taris, Alexandre H. Andrei, Christophe Barache, Teddy Carlucci

SYRTE, Observatoire de Paris (France)

Iain A. Steele

Liverpool John Moores Univ. (United Kingdom)

Ricky L. Smart

INAF - Osservatorio Astronomico di Torino (Italy)

Proc. SPIE 9149, Observatory Operations: Strategies, Processes, and Systems V, 91490P (August 7, 2014); doi:10.1117/12.2056571
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From Conference Volume 9149

  • Observatory Operations: Strategies, Processes, and Systems V
  • Alison B. Peck; Chris R. Benn; Robert L. Seaman
  • Montréal, Quebec, Canada | June 22, 2014

abstract

Gaia, the 1 billion star, high precision, astrometric satellite will revolutionise our understanding in many areas of astronomy ranging from bodies in our Solar System to the formation and structure of our Galaxy. To fully achieve the ambitious goals of the mission, and to completely eliminate effects such as aberration, we must know the position and velocity vectors of the spacecraft as it orbits the Lagrange point to an accuracy greater than can be obtained by traditional radar techniques, leading to the decision to conduct astrometric observations of the Gaia satellite itself from the ground. Therefore the Ground Based Optical Tracking (GBOT) project was formed and a small worldwide network using 1-2 m telescopes established in order to obtain one measurement per day of a precision/accuracy of 20 mas. We will discuss all aspects of GBOT, setup, feasibility considerations, preliminary tests of observing methods, partner observatories, the pipeline/database (see also contribution by Bouquillon et al.1). © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Martin Altmann ; Sebastien Bouquillon ; Francois Taris ; Iain A. Steele ; Ricky L. Smart, et al.
" GBOT - ground based optical tracking of the Gaia satellite ", Proc. SPIE 9149, Observatory Operations: Strategies, Processes, and Systems V, 91490P (August 7, 2014); doi:10.1117/12.2056571; http://dx.doi.org/10.1117/12.2056571


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