Optimization of low-thrust trajectory for a mission to the asteroid 433 Eros with Earth gravity assist

Aerotecnica Missili & Spazio

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Field Value
 
Title Optimization of low-thrust trajectory for a mission to the asteroid 433 Eros with Earth gravity assist
 
Creator Marmo, Nicola
 
Subject Astrodynamics; Trajectory optimization
Trajectory optimization; Indirect methods, Asteroid Redirect Mission; 433 Eros; Near-Earth asteroid; Earth gravity assist
Trajectory optimization; Indirect methods
 
Description Subject of this paper is the design of a space robotic mission to the asteroid 433 Eros. The mission aims to grab a boulder from its surface and transport it inside the Earth's Hill sphere. This kind of mission was chosen to develop a method of analysis of all the opportune trajectories for a sample-return mission, using a generic Near-Earth asteroid as 433 Eros. This work was inspired by NASA's Asteroid Redirect Mission, which was cancelled in 2017 due to lack of funding, and whose purpose was to transfer a boulder from the surface of a Near-Earth asteroid to a stable lunar orbit, where it could be further analysed both by robotic probes and by a future manned mission. The propulsion system used for the theorized mission consists of three autonomous ion thrusters fully adjustable in magnitude and direction of thrust. Furthermore, during the return flight an Earth gravity assist is used to increase the mass of boulder that the spacecraft can transport towards Earth. Selecting the same time window of the ARM, different trajectories, separately for the outbound and inbound flights, are calculated using indirect methods. Subsequently, a plausible interpretation of the different performances of the calculated trajectories is given, considering both the solar electric power available to the spacecraft and the geometric configuration of the bodies involved. At the end of this process, all the calculated trajectories for the outbound and inbound flights are compared, and possible final solutions for the mission are discussed.
 
Publisher Associazione Italiana di Aeronautica e Astronautica (AIDAA)
 
Contributor Lorenzo Casalino
Politechnic University of Turin
Department of Mechanical and Aerospace Engineering
 
Date 2018-10-22
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
Numerical
 
Format application/pdf
 
Identifier http://131.114.27.37/index.php/AMS/article/view/344
10.19249/ams.v97i3.344
 
Source Aerotecnica Missili & Spazio; Vol 97, No 3 (2018); 163-173
0365-7442
 
Language eng
 
Relation http://131.114.27.37/index.php/AMS/article/view/344/pdf
http://131.114.27.37/index.php/AMS/article/downloadSuppFile/344/21
 
Rights Copyright (c) 2018 Aerotecnica Missili & Spazio
 

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