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Year of publication
Institute
- Fachbereich Luft- und Raumfahrttechnik (375) (remove)
Document Type
- Article (375) (remove)
Keywords
- avalanche (5)
- snow (3)
- Aeroelasticity (2)
- CFD (2)
- Drinfeld modules (2)
- Karosseriebau (2)
- Kraftfahrzeugbau (2)
- Obstacle avoidance (2)
- Path planning (2)
- Sportwagen (2)
Hein, Andreas M. ; Eubanks, T. Marshall ; Lingam, Manasvi ; Hibberd, Adam ; Fries, Dan ; Schneider, Jean ; Kervella, Pierre ; Kennedy, Robert ; Perakis, Nikolaos ; Dachwald, Bernd
The recently discovered first hyperbolic objects passing through the Solar System, 1I/’Oumuamua and 2I/Borisov, have raised the question about near term missions to Interstellar Objects. In situ spacecraft exploration of these objects will allow the direct determination of both their structure and their chemical and isotopic composition, enabling an entirely new way of studying small bodies from outside our solar system. In this paper, we map various Interstellar Object classes to mission types, demonstrating that missions to a range of Interstellar Object classes are feasible, using existing or near-term technology. We describe flyby, rendezvous and sample return missions to interstellar objects, showing various ways to explore these bodies characterizing their surface, dynamics, structure and composition. Their direct exploration will constrain their formation and history, situating them within the dynamical and chemical evolution of the Galaxy. These mission types also provide the opportunity to explore solar system bodies and perform measurements in the far outer solar system.
Hein, Andreas M. ; Eubanks, T. Marshall ; Hibberd, Adam ; Fries, Dan ; Schneider, Jean ; Lingam, Manasvi ; Kennedy, Robert ; Perakis, Nikolaos ; Dachwald, Bernd ; Kervella, Pierre
The recently discovered first high velocity hyperbolic objects passing through the Solar System, 1I/'Oumuamua and 2I/Borisov, have raised the question about near term missions to Interstellar Objects. In situ spacecraft exploration of these objects will allow the direct determination of both their structure and their chemical and isotopic composition, enabling an entirely new way of studying small bodies from outside our solar system. In this paper, we map various Interstellar Object classes to mission types, demonstrating that missions to a range of Interstellar Object classes are feasible, using existing or near-term technology. We describe flyby, rendezvous and sample return missions to interstellar objects, showing various ways to explore these bodies characterizing their surface, dynamics, structure and composition. Interstellar objects likely formed very far from the solar system in both time and space; their direct exploration will constrain their formation and history, situating them within the dynamical and chemical evolution of the Galaxy. These mission types also provide the opportunity to explore solar system bodies and perform measurements in the far outer solar system.
This paper examines the positive and negative aspects of a range of interpretations of nearest-neighbours models. Measures-oriented and distributionoriented verification methods are applied to categorial, probabilistic and descriptive interpretations of nearest neighbours used operationally in avalanche forecasting in Scotland and Switzerland. The dependence of skill and accuracy measures on base rate is illustrated. The purpose of the forecast and the definition of events are important variables in determining the quality of the forecast. A discussion of the application of different interpretations in operational avalanche forecasting is presented.