Virtanen Jenni - Gaia
Gaia was proposed in 1993 and since then, many people have been involved in the Gaia mission, whether at ESA, at industry side or at one of the institutes involved in the Gaia data processing. The Gaia Data Processing and Analysis Consortium (DPAC) is a collaboration which consists of around 450 scientists and engineers.
The list of Gaia contributors presented here should not be considered a complete representation of the entire consortium. A more complete list of Gaia contributors that were involved in the creation of the Gaia catalogues can be obtained from the author lists of the Gaia Collaboration papers (for Gaia Data Release 1 see here, for Gaia Data Release 2 see here, for Gaia Early Data Release 3 see here). A history of contributions to the Gaia mission can be found from the acknowledgements given with each data release.
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University of Helsinki
Jenni Virtanen received her PhD from the University of Helsinki in June 2005 with a thesis on "Asteroid orbital inversion using statistical methods". The statistical approach and the new numerical methods described in the thesis have enabled reliable and detailed studies of the problem of initial orbit computation that were not possible before. This is particularly relevant for newly discovered moving objects and is also applicable to the sparse asteroid data that will gradually accumulate during the Gaia mission. As part of her thesis work Jenni performed simulations of asteroid orbit computation (appropriate for Gaia) showing that even exiguous data if of high accuracy is highly useful when evaluating the uncertanties in the orbits of small solar-system bodies.
She left Gaia in late 2006.
[Published: 31/10/2005 | Updated: 15/08/2008]
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