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Astra: Interdisciplinary study on enhancement of the end-to-end accuracy for spacecraft tracking techniques

Iess, Luciano; Tortora, Paolo; Di Benedetto, Mauro +3 more

Navigation of deep-space probes is accomplished through a variety of different radio observables, namely Doppler, ranging and Delta-Differential One-Way Ranging (Delta-DOR). The particular mix of observations used for navigation mainly depends on the available on-board radio system, the mission phase and orbit determination requirements. The accur…

Landing on small bodies: From the Rosetta Lander to MASCOT and beyond

Ulamec, Stephan; Biele, Jens; Geurts, Koen +9 more

Recent planning for science and exploration missions has emphasized the high interest in the close investigation of small bodies in the Solar System. In particular in-situ observations of asteroids and comets play an important role in this field and will contribute substantially to our understanding of the formation and history of the Solar System…