Hostname: page-component-745bb68f8f-s22k5 Total loading time: 0 Render date: 2025-02-11T19:51:31.028Z Has data issue: false hasContentIssue false
  • English
  • Français

Global Sphere Reconstruction in the Astrometric VerificationUnit

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
U. Abbas ,
A. Vecchiato ,
B. Bucciarelli ,
M. G. Lattanzi  and
R. Morbidelli
U. Abbas
Affiliation:
Osservatorio Astronomico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), Italy. e-mail: [email protected]
A. Vecchiato
Affiliation:
Osservatorio Astronomico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), Italy. e-mail: [email protected]
B. Bucciarelli
Affiliation:
Osservatorio Astronomico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), Italy. e-mail: [email protected]
M. G. Lattanzi
Affiliation:
Osservatorio Astronomico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), Italy. e-mail: [email protected]
R. Morbidelli
Affiliation:
Osservatorio Astronomico di Torino, via Osservatorio 20, 10025 Pino Torinese (TO), Italy. e-mail: [email protected]
Get access

Abstract

The Gaia space satellite will perform absolute astrometry, aiming at the definition of aglobal astrometric reference frame at visual wavelengths. Within this reference system, itwill be very difficult to identify possible errors in the measurements or in the datareduction process that brings about the definition of the final catalogue. The Gaia DataProcessing and Analysis Consortium (DPAC) has established an Astrometric Verification Unit(AVU) to verify crucial steps in the baseline data processing chain and report on anysignificant difference. This process is essential in order to guarantee a high qualitycatalogue to the larger scientific community. We describe here the global spherereconstruction (GSR) component of AVU hosted by the Italian data processing centre atTorino (DPCT).

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 127 - 132
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

Bini, D., Crosta, M., & de Felice, F., 2003, Class. Quantum Grav., 20, 4695 CrossRef
Bucciarelli, B., Taff, L.G., & Lattanzi, M.G., 1993, J. Statist. Comput. Simul., 48, 29 CrossRef
Klioner, S.A., 2003, Astron. J., 125, 1580 CrossRef
Klioner, S.A., & Kopeikin, S.M., 1992, Astron. J., 104, 897 CrossRef
Mignard F., & Drimmel R., 2007, Gaia Livelink Technical rep., GAIA-CD-SP-DPAC-FM-030-02
Paige, C., & Saunders, M.A., 1982, ACM Trans. Math. Software, 8, 43 CrossRef
Vecchiato, A., Lattanzi, M.G., Bucciarelli, B., et al., 2003, Astron. Astrophys., 399, 337 CrossRef
de Felice, F., Vecchiato, A., Crosta, M., Bucciarelli, B., & Lattanzi, M.G., 2006, ApJ, 653, 1552 CrossRef