Navigation überspringen
Universitätsbibliothek Heidelberg
Status: Bibliographieeintrag
Standort: ---
Exemplare: ---
heiBIB
 Online-Ressource
Verfasst von:Spoto, Federica [VerfasserIn]   i
 Altmann, Martin [VerfasserIn]   i
Titel:Ground-based astrometry calibrated by Gaia DR1
Titelzusatz:new perspectives in asteroid orbit determination
Verf.angabe:F. Spoto, P. Tanga, S. Bouquillon, J. Desmars, D. Hestroffer, F. Mignard, M. Altmann, D. Herald, J. Marchant, C. Barache, T. Carlucci, T. Lister and F. Taris
E-Jahr:2017
Jahr:19 Sep 2017
Umfang:12 S.
Fussnoten:Gesehen am 13.01.2021
Titel Quelle:Enthalten in: De.arxiv.org
Ort Quelle:[S.l.] : Arxiv.org, 1991
Jahr Quelle:2017
Band/Heft Quelle:(2017) Artikel-Nummer 1709.06471, 12 Seiten
Abstract:The Gaia Data Release 1 (GDR1) is a first, important step on the path of evolution of astrometric accuracy towards a much improved situation. Although asteroids are not present in GDR1, this intermediate release already impacts asteroid astrometry. Our goal is to investigate how the GDR1 can change the approach to a few typical problems, including the determination of orbits from short-arc astrometry, the exploitation of stellar occultations, and the impact risk assessment. We employ optimised asteroid orbit determination tools, and study the resulting orbit accuracy and post-fit residuals. For this goal, we use selected ground-based asteroid astrometry, and occultation events observed in the past. All measurements are calibrated by using GDR1 stars. We show that, by adopting GDR1, very short measurement arcs can already provide interesting orbital solutions, capable of correctly identifying Near Earth Asteroids (NEAs) and providing a much more accurate risk rating. We also demonstrate that occultations, previously used to derive asteroid size and shapes, now reach a new level of accuracy at which they can be fruitfully used to obtain astrometry at the level of accuracy of Gaia star positions.
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Kostenfrei: Volltext: http://arxiv.org/abs/1709.06471
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Astrophysics - Earth and Planetary Astrophysics
K10plus-PPN:1571412204
Verknüpfungen:→ Sammelwerk

Permanenter Link auf diesen Titel (bookmarkfähig):  https://katalog.ub.uni-heidelberg.de/titel/68236253   QR-Code
zum Seitenanfang