Hostname: page-component-848d4c4894-hfldf Total loading time: 0 Render date: 2024-05-09T11:04:31.146Z Has data issue: false hasContentIssue false
  • English
  • Français

News on Seeking Gaia’s Astrometric Core Solution with AGIS

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
U. Lammers  and
L. Lindegren
U. Lammers
Affiliation:
European Space Astronomy Centre of ESA, Madrid, Spain
L. Lindegren
Affiliation:
Lund Observatory, Lund, Sweden
Get access

Abstract

We report on recent new developments around the Astrometric Global Iterative Solution system. This includes the availability of an efficient Conjugate Gradient solver and the Generic Astrometric Calibration scheme that had been proposed a while ago. The number of primary stars to be included in the core solution is now believed to be significantly higher than the 100 Million that served as baseline until now. Cloud computing services are being studied as a possible cost-effective alternative to running AGIS on dedicated computing hardware at ESAC during the operational phase.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 123 - 126
Copyright
© EAS, EDP Sciences 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Références

Bombrun A., Lindegren L., Holl B., et al., 2010, Astronomy & Astrophysics, in preparation
Lindegren L., October, 2008, Technical note GAIA-C3-TN-LU-LL-077, available at URL www.rssd.esa.int/doc_fetch.php?id=2865239, http://www.rssd.esa.int/doc_fetch.php?id=2865239