A total lunar eclipse is conjectured to have influence on the physical conditions of an environmental area, particularly on the brightness of the sky. The phenomenon might also be relevant on weather parameters change on Earth, such as temperature, humidity and pressure, though a straightforward correlation is not easy to establish. This work mainly aims at measuring the brightness of the sky a...

The space-based GPS limb sounding, conventionally known as GPS Radio Occultation, is a remote sensing technique aiming at characterize the Earth atmosphere. The atmospheric profiling is done through the inversion of excess-phase measurements carried-out by a GPS receiver placed on-board a LEO (Low Earth Orbit) satellite. The GPS signal, observed when it emerges from the Earth limb, is refracted...

Distant Retrograde Orbits in the Earth-Moon system are gaining in popularity as stable ‘parking’ orbits for various conceptual missions. To investigate the stability of potential Distant Retrograde Orbits, simulations were executed, with propagation running over a thirty-year period. Initial conditions for the vehicle state were limited such that the position and velocity vectors were in the Ea...