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On-Ground Attitude Determination in the HIPPARCOS Mission

Published online by Cambridge University Press:  30 March 2016

F. Donati ,
E. Canuto ,
J.L. Falin ,
M. Froeschlè  and
J. Kovalevsky
F. Donati
Affiliation:
Dipartimento di Automatica e Informatica, Politecnico di Torino, Corso Duca degli Abruzzi 24,10128 Torino, Italy and Centro di Studi sui Sistemi, Torino, Italy
E. Canuto
Affiliation:
Dipartimento di Automatica e Informatica, Politecnico di Torino, Corso Duca degli Abruzzi 24,10128 Torino, Italy and Centro di Studi sui Sistemi, Torino, Italy
J.L. Falin
Affiliation:
CERGA, Observatoire de la Côte d’Azur 06130 Grasse, France
M. Froeschlè
Affiliation:
CERGA, Observatoire de la Côte d’Azur 06130 Grasse, France
J. Kovalevsky
Affiliation:
CERGA, Observatoire de la Côte d’Azur 06130 Grasse, France

Abstract

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An accurate on-ground reconstitution of the satellite three-axes attitude from the downlinked star mapper photon counts is an essential factor in the final accuracy of the Hipparcos Astrometric Catalogue. The reconstitution method developed by the FAST Consortium and currently on use to process Hipparcos data is the concern of this paper. After on outline of the main reconstitution models and algorithms, an accuracy assessment of the estimates, attitude and star coordinates, coming out from the first year data reduction, is presented; the assessment shows that attitude root mean square errors are already around the mission target of 0.1 arcseconds.

Type
Joint Discussions
Information
Highlights of Astronomy , Volume 9: Highlights of Astronomy. As presented at the XXIst General Assembly of the IAU, 1991 , 1992 , pp. 405 - 408
Copyright
Copyright © Kluwer 1992

References

1. Donati, F. & alii, (1984), High-accuracy On-ground Attitude Reconstitution for the ESA Astrometry Mission Hipparcos, Proc. 9th World Congress of the Int. Fed. of Automatic Control, Budapest (Hungary), vol. III, 18–23.Google Scholar
2. Donati, F., Canuto, E., Fassino, B. and Belforte, P. (1986), High-accuracy On-ground Attitude Reconstitution for the ESA Astrometry Hipparcos Mission, Manuscripta Geodaetica, 11, 115–123 Google Scholar