Search Publications
Dynamical modeling and characteristic analysis of orbits around a comet
He, Yuchen; Wang, Yue; Tian, Lin
As a frontier field of deep-space explorations, the study of comets is of great value to planetary scientific research, resource exploration, and planetary defense. To date, only the ESA's Rosetta spacecraft successfully orbited the comet 67P. The orbital dynamical environment around comets is more complex than that of other small bodies, making t…
Asteroid landing analysis for multi-node probe based on spring damping device
Wang, Bang; Xu, Rui; Li, Zhaoyu +3 more
Soft landing on the surface of an asteroid is a prerequisite for performing surface exploration. Due to the weakness of gravitational field, complex surface, and unknown soil properties of asteroids, a single probe may rebound from the surface with uncontrollable long-range tumbling during landing, leading to a deviation from its original landing …
Modeling irregular small bodies gravity field via extreme learning machines and Bayesian optimization
Reddy, Vishnu; Le Corre, Lucille; Furfaro, Roberto +4 more
Close proximity operations around small bodies are extremely challenging due to their uncertain dynamical environment. Autonomous guidance and navigation around small bodies require fast and accurate modeling of the gravitational field for potential on-board computation. In this paper, we investigate a model-based, data-driven approach to compute …
Exospheric escape: A parametrical study
Killen, Rosemary M.; Burger, Matthew H.; Farrell, William M.
The study of exospheres can help us understand the long-term loss of volatiles from planetary bodies due to interactions of planets, satellites, and small bodies with the interplanetary medium, solar radiation, and internal forces including diffusion and outgassing. Recent evidence for water and OH on the Moon has spurred interest in processes inv…
The SSDC contribution to the improvement of knowledge by means of 3D data projections of minor bodies
Longobardo, Andrea; Palomba, Ernesto; Zinzi, Angelo +6 more
The latest developments of planetary exploration missions devoted to minor bodies required new solutions to correctly visualize and analyze data acquired over irregularly shaped bodies.
ASI Space Science Data Center (SSDC - ASI, formerly ASDC - ASI Science Data Center) worked on this task since early 2013, when started developing the web tool…GIADA performance during Rosetta mission scientific operations at comet 67P
Fulle, M.; Rodriguez, J.; Colangeli, L. +16 more
The Grain Impact Analyser and Dust Accumulator (GIADA) instrument onboard Rosetta studied the dust environment of comet 67P/Churyumov-Gerasimenko from 3.7 au inbound, through perihelion, to 3.8 au outbound, measuring the dust flow and the dynamic properties of individual particles. GIADA is composed of three subsystems: (1) Grain Detection System …
Frequency fluctuations in the solar corona investigated with radio sounding experiments on the spacecraft ROSETTA and MARS EXPRESS in 2010/2011
Pätzold, M.; Bird, M. K.; Efimov, A. I. +3 more
Coronal radio-sounding experiments were carried out using two-way coherent dual-frequency carrier signals of the ESA spacecraft ROSETTA in 2010 and MARS EXPRESS in 2010/2011. Differential frequency measurements recorded at both NASA and ESA tracking stations (sample rate: 1 Hz) are analyzed in this paper. Spectral analysis of the S-band, X-band, a…
Radio reflection imaging of asteroid and comet interiors I: Acquisition and imaging theory
Sava, Paul; Ittharat, Detchai; Grimm, Robert +1 more
Imaging the interior structure of comets and asteroids can provide insight into their formation in the early Solar System, and can aid in their exploration and hazard mitigation. Accurate imaging can be accomplished using broadband wavefield data penetrating deep inside the object under investigation. This can be done in principle using seismic sy…
MIDACO software performance on interplanetary trajectory benchmarks
Schlueter, Martin
A numerical study of the MIDACO optimization software on the well known GTOP benchmark set, published by the European Space Agency (ESA), is presented. The GTOP database provides trajectory models of real-world interplanetary space missions such as Cassini, Messenger or Rosetta. The trajectory models are formulated as constrained nonlinear optimiz…
Evaluating the robustness of the enantioselective stationary phases on the Rosetta mission against space vacuum vaporization
Szopa, Cyril; Raulin, François; Meierhenrich, Uwe J. +4 more
The European Space Agency's Rosetta mission was launched in March 2004 in order to reach comet 67P/Churyumov-Gerasimenko by August 2014. The Cometary Sampling and Composition experiment (COSAC) onboard the Rosetta mission's lander "Philae" has been designed for the cometary in situ detection and quantification of organic molecules using gas chroma…