Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)
(2010) Astronomical Data Analysis Software and Systems XIX 434. p.386-389- Abstract
- Gaia is ESA’s space astrometry mission with a foreseen launch date in early 2012. Its main objective is to perform a stellar census of the 1000 Million brightest objects in our galaxy (completeness to V=20 mag) from which an astrometric catalog of micro-arcsec level accuracy will be constructed. A key element in this endeavor is the Astrometric Global Iterative Solution (AGIS). A core part of AGIS is to determine the accurate spacecraft attitude, geometric instrument calibration and astrometric model parameters for a well-behaved subset of all the objects (the ‘primary stars’). In addition, a small number of global parameters will be estimated, one of these being PPN γ. We present here the implementation of the algorithms dedicated to the... (More)
- Gaia is ESA’s space astrometry mission with a foreseen launch date in early 2012. Its main objective is to perform a stellar census of the 1000 Million brightest objects in our galaxy (completeness to V=20 mag) from which an astrometric catalog of micro-arcsec level accuracy will be constructed. A key element in this endeavor is the Astrometric Global Iterative Solution (AGIS). A core part of AGIS is to determine the accurate spacecraft attitude, geometric instrument calibration and astrometric model parameters for a well-behaved subset of all the objects (the ‘primary stars’). In addition, a small number of global parameters will be estimated, one of these being PPN γ. We present here the implementation of the algorithms dedicated to the determination of the global parameters. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1895656
- author
- Raison, F. ; Olias, A. ; Hobbs, David LU and Lindegren, Lennart LU
- organization
- publishing date
- 2010
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Astronomical Society of the Pacific Conference Series
- editor
- Mizumoto, Yoshihiko ; Morita, Koh-Ichiro and Ohishi, Masatoshi
- volume
- 434
- pages
- 4 pages
- publisher
- Astronomical Society of the Pacific (ASP)
- conference name
- Astronomical Data Analysis Software and Systems XIX
- conference location
- Sapporo, Japan
- conference dates
- 2009-10-04
- ISBN
- 978-1-58381-748-3
- language
- English
- LU publication?
- yes
- id
- 09b51c28-8154-4d63-be37-adff82f0aa8b (old id 1895656)
- alternative location
- http://www.aspbooks.org/a/volumes/article_details/?paper_id=32173
- date added to LUP
- 2016-04-04 10:33:19
- date last changed
- 2020-06-16 15:04:59
@inproceedings{09b51c28-8154-4d63-be37-adff82f0aa8b, abstract = {{Gaia is ESA’s space astrometry mission with a foreseen launch date in early 2012. Its main objective is to perform a stellar census of the 1000 Million brightest objects in our galaxy (completeness to V=20 mag) from which an astrometric catalog of micro-arcsec level accuracy will be constructed. A key element in this endeavor is the Astrometric Global Iterative Solution (AGIS). A core part of AGIS is to determine the accurate spacecraft attitude, geometric instrument calibration and astrometric model parameters for a well-behaved subset of all the objects (the ‘primary stars’). In addition, a small number of global parameters will be estimated, one of these being PPN γ. We present here the implementation of the algorithms dedicated to the determination of the global parameters.}}, author = {{Raison, F. and Olias, A. and Hobbs, David and Lindegren, Lennart}}, booktitle = {{Astronomical Society of the Pacific Conference Series}}, editor = {{Mizumoto, Yoshihiko and Morita, Koh-Ichiro and Ohishi, Masatoshi}}, isbn = {{978-1-58381-748-3}}, language = {{eng}}, pages = {{386--389}}, publisher = {{Astronomical Society of the Pacific (ASP)}}, title = {{Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)}}, url = {{http://www.aspbooks.org/a/volumes/article_details/?paper_id=32173}}, volume = {{434}}, year = {{2010}}, }