The gravity assist is a maneuver greatly applied to space missions, with the main goal of
giving or removing energy of a spacecraft through a passage near a celestial body. The …

Abstract Space missions to visit small bodies of the Solar System are important steps to
improve our knowledge of the Solar System. Usually those bodies do not have well known …

We search for stable orbits in the vicinity of the triple asteroid system, 2001-SN263, which
will be target of the deep space mission ASTER, currently under study by the Brazilian space …

ASTER, the first Brazilian mission to the deep space, targets the exploration of the triple
asteroid system known as 2001 SN263. The mission requires an attitude controller robust …

In cooperation with Russia, the Brazilian deep space mission ASTER plans to send a small
spacecraft to investigate the triple asteroid 2001-SN263. The nearest launch opportunities …

In addition to radio navigation, optical navigation has been used successfully in deep-space
missions since the launch of the Voyager spacecraft, in the 1970s. In the 1990s, the NASA's …

Electric propulsion is now a successful method for primary and secondary propulsion of
deep space long-duration missions and for geosynchronous satellite attitude control. The …

To assist in the investigation of the triple asteroid system 2001-SN263, the deep space
mission ASTER will carry onboard a laser altimeter. The instrument was named ALR and its …

The Brazilian deep space mission ASTER plans to send a small spacecraft to investigate the
triple asteroid 2001-SN263. The launch is expected to occur in June, 2020. The main …

Among the scientific instruments that will fly on the upcoming mission ASTER, the first
Brazilian deep space mission, the laser altimeter will play an important role in the surveys …