A mission concept for the low-cost large-scale exploration and characterisation of near earth objects |
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Authors: | Lewis Walker Marilena Di Carlo Cristian Greco Massimiliano Vasile Matthew Warden |
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Institution: | 1. Level 8, James Weir Building, 75 Montrose St, Glasgow G1 1XJ, UK;2. Level 5, Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, UK |
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Abstract: | This paper presents the preliminary mission and science analysis of a new mission concept for the large scale, low-cost exploration of Near Earth Objects (NEOs). The concept is to enable close range observations of NEOs by performing close flybys of a series of NEOs at one of their nodal points, with pairs of small spacecraft flying in formation. The paper presents a preliminary assessment of accessible asteroids and multi-target tour trajectories from data available in the JPL small-body database.The main instruments on board each spacecraft are a camera and a LIDAR which together can be used for orbit determination, surface imaging, direct asteroid ranging and asteroid mass estimation via intersatellite ranging. The paper provides a qualitative and quantitative assessment of the measurable quantities during each flyby. In particular, the feasibility of a novel method of NEO mass estimation is assessed. |
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Keywords: | Near Earth asteroid Formation flight Flyby Radioscience |
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