Volume 391, Number 3, September I 2002
|Page(s)||1115 - 1122|
|Section||Celestial mechanics and astrometry|
|Published online||09 August 2002|
Asteroid encounters suitable for mass determinations
Astronomical Institute, Faculty of Mathematics, Physics and Informatics, Comenius University, Bratislava, Slovak Republic
2 Project Pluto, 168 Ridge Road, Bowdoinham, ME 04008, USA
Corresponding author: A. Galád, firstname.lastname@example.org
Accepted: 28 May 2002
As in a previous paper (Galád [CITE]), the search for effective perturbers among asteroids is done using the same method and during the same time period. The only difference is in the number of asteroids that were processed – 24 599 instead of 9511. Special attention is paid to comparison between perturbations due to (2) Pallas and (10) Hygiea. It is confirmed that the latter has a larger effect on the motion of main belt asteroids, perhaps by a factor of three. This is a reason to include its mass in asteroid orbit determinations. In addition to the Big Four main belt asteroids – (1) Ceres, (2) Pallas, (4) Vesta, (10) Hygiea – the masses of many other large asteroids, such as (11) Parthenope, (13) Egeria, (15) Eunomia, (16) Psyche, (24) Themis, (29) , (39) Laetitia, (45) Eugenia, (52) Europa, (65) , (121) Hermione, (451) Patientia, and (511) Davida, could be achieved by the end of this decade using astrometric data. In general, over the next decade small asteroids (with much higher numbers than above) will be used more thoroughly for mass determination of large asteroids.
Key words: minor planets, asteroids / astrometry / ephemerides
© ESO, 2002
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.