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Lennart Lindegren. Profile picture.

Lennart Lindegren

Professor emeritus

Lennart Lindegren. Profile picture.

News on Seeking Gaia's Astrometric Core Solution with AGIS

Author

  • U. Lammers
  • Lennart Lindegren

Summary, in English

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.

Department/s

  • Lund Observatory - Has been reorganised

Publishing year

2011

Language

English

Pages

123-126

Publication/Series

EAS Publications Series

Volume

45

Issue

GAIA: At the Frontiers of Astrometry

Document type

Journal article

Publisher

EDP Sciences

Topic

  • Astronomy, Astrophysics and Cosmology

Status

Published

ISBN/ISSN/Other

  • ISSN: 1633-4760