Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)

F. Raison; A. Olias; David Hobbs; Lennart Lindegren

Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)

F. Raison, A. Olias, David Hobbs, Lennart Lindegren

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

Sammanfattning

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.

Originalspråk	engelska
Titel på värdpublikation	Astronomical Society of the Pacific Conference Series
Redaktörer	Yoshihiko Mizumoto, Koh-Ichiro Morita, Masatoshi Ohishi
Förlag	Astronomical Society of the Pacific (ASP)
Sidor	386-389
Antal sidor	4
Volym	434
ISBN (tryckt)	978-1-58381-748-3
Status	Published - 2010
Evenemang	Astronomical Data Analysis Software and Systems XIX - Sapporo, Japan Varaktighet: 2009 okt. 4 → …

Publikationsserier

Namn
Volym	434

Konferens

Konferens	Astronomical Data Analysis Software and Systems XIX
Land/Territorium	Japan
Ort	Sapporo
Period	2009/10/04 → …

Ämnesklassifikation (UKÄ)

Astronomi, astrofysik och kosmologi

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http://www.aspbooks.org/a/volumes/article_details/?paper_id=32173

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Raison, F., Olias, A., Hobbs, D., & Lindegren, L. (2010). Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS). I Y. Mizumoto, K.-I. Morita, & M. Ohishi (Red.), Astronomical Society of the Pacific Conference Series (Vol. 434, s. 386-389). Astronomical Society of the Pacific (ASP). http://www.aspbooks.org/a/volumes/article_details/?paper_id=32173

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title = "Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)",

abstract = "Gaia is ESA{\textquoteright}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 {\textquoteleft}primary stars{\textquoteright}). 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 = "F. Raison and A. Olias and David Hobbs and Lennart Lindegren",

year = "2010",

language = "English",

isbn = "978-1-58381-748-3",

volume = "434",

publisher = "Astronomical Society of the Pacific (ASP)",

pages = "386--389",

editor = "Yoshihiko Mizumoto and Koh-Ichiro Morita and Masatoshi Ohishi",

booktitle = "Astronomical Society of the Pacific Conference Series",

address = "United States",

note = "Astronomical Data Analysis Software and Systems XIX ; Conference date: 04-10-2009",

}

Raison, F, Olias, A, Hobbs, D & Lindegren, L 2010, Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS). i Y Mizumoto, K-I Morita & M Ohishi (red), Astronomical Society of the Pacific Conference Series. vol. 434, Astronomical Society of the Pacific (ASP), s. 386-389, Astronomical Data Analysis Software and Systems XIX, Sapporo, Japan, 2009/10/04. <http://www.aspbooks.org/a/volumes/article_details/?paper_id=32173>

Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS). / Raison, F.; Olias, A.; Hobbs, David et al.
Astronomical Society of the Pacific Conference Series. red. / Yoshihiko Mizumoto; Koh-Ichiro Morita; Masatoshi Ohishi. Vol. 434 Astronomical Society of the Pacific (ASP), 2010. s. 386-389.

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

TY - GEN

T1 - Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)

AU - Raison, F.

AU - Olias, A.

AU - Hobbs, David

AU - Lindegren, Lennart

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

M3 - Paper in conference proceeding

SN - 978-1-58381-748-3

VL - 434

SP - 386

EP - 389

BT - Astronomical Society of the Pacific Conference Series

A2 - Mizumoto, Yoshihiko

A2 - Morita, Koh-Ichiro

A2 - Ohishi, Masatoshi

PB - Astronomical Society of the Pacific (ASP)

T2 - Astronomical Data Analysis Software and Systems XIX

Y2 - 4 October 2009

ER -

Implementation of the Global Parameters Determination in Gaia's Astrometric Solution (AGIS)

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