@InProceedings{MacauWint:2017:ExFiTi,
author = "Macau, Elbert Einstein Nehrer and Winter, O. C.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
{Universidade Estadual Paulista (UNESP)}",
title = "The Aster mission: exploring for the first time a tiple system
asteroid",
year = "2017",
organization = "Asteroids, Comets, Meteors",
abstract = "2001 SN263 is a triple system asteroid. Although it was discovery
in 2001, in 2008 astronomical observation carried out by Arecibo
observatory revealed that it is actually a system with three
bodies orbiting each other. The main central body is an irregular
object with a diameter about 2.8 km, while the other two are small
objects with less than 1 km across. This system presents an
orbital eccentricity of 0.47, with perihelion of 1.04 and aphelion
of 1.99, which means that it can be considered as a Near Earth
Object. This interesting system was chosen as the target for the
Aster mission - first Brazilian space exploration undertaking. A
small spacecraft with 150 kg of total mass, 30 kg of payload with
110 W available for the instruments, is scheduled to be launched
in 2021, and in 2022 it will approach and will be put in orbit of
the triple system. This spacecraft will use electric propulsion
and in its payload it will carry image camera, laser rangefinder,
infrared spectrometer, mass spectrometer, and experiments to be
performed in its way to the asteroid. This mission represents a
great challenge for the Brazilian space program. It is being
structured to allow the full engagement of the Brazilian
universities and technological companies in all the necessary
developments to be carried out. In this work, we present all those
aspects of this mission, including its scientific goals, the
transfer trajectories to be used, and the buss and payload
subsystems that are being developed and will be used. Also, we
discuss the expected scientific and technological consequences
that are expected for the Aster mission.",
conference-location = "Montevideo, Uruguay",
conference-year = "10-14 Apr.",
language = "en",
urlaccessdate = "26 abr. 2024"
}