Search Publications
Planetary Radio Interferometry and Doppler Experiment (PRIDE) technique: A test case of the Mars Express Phobos Flyby. II. Doppler tracking: Formulation of observed and computed values, and noise budget
Bocanegra-Bahamón, T. M.; Molera Calvés, G.; Gurvits, L. I. +5 more
Context. Closed-loop Doppler data obtained by deep space tracking networks, such as the NASA Deep Space Network (DSN) and the ESA tracking station network (Estrack), are routinely used for navigation and science applications. By shadow tracking the spacecraft signal, Earth-based radio telescopes involved in the Planetary Radio Interferometry and D…
Stringent upper limit of CH4 on Mars based on SOFIA/EXES observations
Aoki, S.; Vandaele, A. C.; Sindoni, G. +13 more
Discovery of CH4 in the Martian atmosphere has led to much discussion since it could be a signature of biological and/or geological activities on Mars. However, the presence of CH4 and its temporal and spatial variations are still under discussion because of the large uncertainties embedded in the previous observations. We pe…
Mutual event observations of solar system objects by SRC on Mars Express. Analysis and release of observations
Willner, K.; Ziese, R.
Context. Both Martian moons, Phobos and Deimos, have been observed during several imaging campaigns by the Super Resolution Channel (SRC) on the Mars Express probe. Several tens of images are obtained during mutual event observations - when the Martian moons are both observed or together with another solar system body. These observations provide n…