Lennart Lindegren
Professor
News on Seeking Gaia's Astrometric Core Solution with AGIS
Author
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 - Undergoing reorganization
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