PRAIA–Package for the Reduction of Astronomical Images Automatically–is a suite of
photometric and astrometric tasks designed to cope with huge amounts of heterogeneous …

The stellar occultation technique provides competitive accuracy in determining the sizes,
shapes, astrometry, etc., of the occulting body, comparable to in-situ observations by …

Context. The upcoming JUICE and Europa Clipper missions targeting Jupiter's Galilean
satellites will provide radio science tracking measurements of both spacecraft. Such data are …

Astrometric studies and orbital modelling of planetary moons have contributed significantly
to advancing our understanding of their orbital dynamics. These studies require precise …

A stellar occultation occurs when a Solar System object passes in front of a star for an
observer. This technique allows the sizes and shapes of the occulting body to be determined …

When reconstructing natural satellites' ephemerides from space missions' tracking data, the
dynamics of the spacecraft and natural bodies are often solved for separately, in a …

Context. Stellar occultations currently provide the most accurate ground-based
measurements of the positions of natural satellites (down to a few kilometres for the Galilean …

Doing high-precision astrometry on Uranus' moons is currently quite challenging. No probes
will orbit the system before 2040. New high-precision mutual phenomena measurements …

Context. Quaoar is a classical trans-Neptunian object (TNO) with an area-equivalent
diameter of 1100 km and an orbital semi-major axis of 43.3 astronomical units. Based on …

Harmon et al. Arecibo radar observations from 1992 provided some of the most precise line-
of-sight distance (ranging) measurements of Ganymede and Callisto to date. We report 18 …