[HTML][HTML] Asteroid astrometry by stellar occultations: Accuracy of the existing sample from orbital fitting

JF Ferreira, P Tanga, F Spoto, P Machado… - Astronomy & …, 2022 - aanda.org
Context. The technique of stellar occultations, greatly enhanced by the publication of the
Gaia data releases, permits not only the determination of asteroid size and shape, but also …

[HTML][HTML] A survey for occultation astrometry of main belt: expected astrometric performances

JF Ferreira, P Tanga, P Machado, E Corsaro - Astronomy & Astrophysics, 2020 - aanda.org
Context. Occultations of stars by asteroids are an efficient method to study the properties of
minor bodies, and can be exploited as tools to derive very precise asteroid astrometry …

Asteroid occultations today and tomorrow: toward the GAIA era

P Tanga, M Delbo - Astronomy & Astrophysics, 2007 - aanda.org
Context. Observation of star occultations is a powerful tool to determine shapes and sizes of
asteroids. This is key information necessary for studying the evolution of the asteroid belt …

Precise astrometry and diameters of asteroids from occultations–a data set of observations and their interpretation

D Herald, D Gault, R Anderson… - Monthly Notices of …, 2020 - academic.oup.com
Occultations of stars by asteroids have been observed since 1961, increasing from a very
small number to now over 500 annually. We have created and regularly maintain a growing …

[HTML][HTML] Ground-based astrometry calibrated by Gaia DR1: new perspectives in asteroid orbit determination

F Spoto, P Tanga, S Bouquillon, J Desmars… - Astronomy & …, 2017 - aanda.org
Context. 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 …

[HTML][HTML] Scaling slowly rotating asteroids with stellar occultations

A Marciniak, J Ďurech, A Choukroun, J Hanuš… - Astronomy & …, 2023 - aanda.org
Context. As evidenced by recent survey results, the majority of asteroids are slow rotators
(spin periods longer than 12 h), but lack spin and shape models because of selection bias …

[HTML][HTML] Gaia Focused Product Release: Asteroid orbital solution-Properties and assessment

P David, F Mignard, D Hestroffer, P Tanga… - Astronomy & …, 2023 - aanda.org
Context. We report the exploitation of a sample of Solar System observations based on data
from the third Gaia Data Release (Gaia DR3) of nearly 157 000 asteroids. It extends the …

[HTML][HTML] CCD Astrometry of Asteroids in the Extragalactic Reference Frame

RC Stone - Astronomical Journal v. 113, p. 2317, 1997 - adsabs.harvard.edu
This paper describes observations of asteroids made with the Flagstaff Astrometric Scanning
Transit Telescope (FASTT), which is a 20 cm CCD transit telescope that can observe objects …

Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes

J Ďurech, M Kaasalainen, D Herald, D Dunham… - Icarus, 2011 - Elsevier
Asteroid sizes can be directly measured by observing occultations of stars by asteroids.
When there are enough observations across the path of the shadow, the asteroid's projected …

Accuracy limit of modern ephemerides imposed by the uncertainties in asteroid masses

EM Standish, A Fienga - Astronomy & Astrophysics, 2002 - aanda.org
Accuracy limits in the ephemerides of the four inner planets, imposed by uncertainties in the
masses of the asteroids, are investigated and illustrated. We consider present-day …