A novel orbiter mission concept for venus with the envision proposal

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Title: A novel orbiter mission concept for venus with the envision proposal
Author(s): De Oliveira, MRR
Gil, PJS
Ghail, RC
Item Type: Conference Paper
Abstract: In space exploration, planetary orbiter missions are essential to gain insight into planets as a whole, and to help uncover unanswered scientific questions. In particular, the planets closest to the Earth have been a privileged target of the world’s leading space agencies. EnVision is a mission proposal with the objective of studying Earth’s closest neighbor. Designed for Venus and competing for ESA’s next launch opportunity, the proposal already went through the selective technical review for the M4 launch opportunity, and was submitted to the M5 call, incorporating feedback from ESA. The main goal is to study geological and atmospheric processes, namely surface processes, interior dynamics and atmosphere, to determine the reasons behind Venus and Earth’s radically different evolution despite the planets’ similarities. To achieve these goals, the operational orbit selection is a fundamental element of the mission design process. The design of an orbit around Venus faces specific challenges, such as the impossibility of choosing Sun-synchronous orbits. In this paper, an innovative genetic algorithm optimization was applied to select the optimal orbit based on the parameters with more influence in the mission planning, in particular the mission duration and the coverage of sites of interest on the Venusian surface. After summarizing the EnVision proposal’s mission concept for Venus, the optimization and innovation of the operational orbit design will be analyzed in terms of its benefits to the mission.
Publication Date: 25-Sep-2017
Date of Acceptance: 27-Feb-2017
URI: http://hdl.handle.net/10044/1/45614
ISSN: 0074-1795
Publisher: Elseiver
Journal / Book Title: Acta Astronautica
Conference Name: International Astronautical Congress, IAC
Publication Status: Accepted
Start Date: 2017-09-25
Finish Date: 2017-09-29
Conference Place: Adelaide, Australia
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering

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