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Lucy Mission to the Trojan Asteroids: Science Goals

Levison, Harold F. and Olkin, Catherine B. and Noll, Keith S. and Marchi, Simone and Bell, James F., III and Bierhaus, Edward and Binzel, Richard and Bottke, William and Britt, Dan and Brown, Michael and Buie, Marc and Christensen, Phil and Emery, Joshua and Grundy, Will and Hamilton, Victoria E. and Howett, Carly and Mottola, Stefano and Pätzold, Martin and Reuter, Dennis and Spencer, John and Statler, Thomas S. and Stern, S. Alan and Sunshine, Jessica and Weaver, Harold and Wong, Ian (2021) Lucy Mission to the Trojan Asteroids: Science Goals. Planetary Science Journal, 2 (5). Art. No. 171. ISSN 2632-3338. doi:10.3847/psj/abf840.

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The Lucy Mission is a NASA Discovery-class mission to send a highly capable and robust spacecraft to investigate seven primitive bodies near both the L4 and L5 Lagrange points with Jupiter: the Jupiter Trojan asteroids. These planetesimals from the outer planetary system have been preserved since early in solar system history. The Lucy mission will fly by and extensively study a diverse selection of Trojan asteroids, including all the recognized taxonomic classes, a collisional family member, and a near equal-mass binary. It will visit objects with diameters ranging from roughly 1 km to 100 km. The payload suite consists of a color camera and infrared imaging spectrometer, a high-resolution panchromatic imager, and a thermal infrared spectrometer. Additionally, two spacecraft subsystems will also contribute to the science investigations: the terminal tracking cameras will supplement imaging during closest approach and the telecommunication subsystem will be used to measure the mass of the Trojans. The science goals are derived from the 2013 Planetary Decadal Survey and include determining the surface composition, assessing the geology, determining the bulk properties, and searching for satellites and rings.

Item Type:Article
Related URLs:
URLURL TypeDescription
Levison, Harold F.0000-0001-5847-8099
Olkin, Catherine B.0000-0002-5846-716X
Noll, Keith S.0000-0002-6013-9384
Marchi, Simone0000-0003-2548-3291
Bell, James F., III0000-0002-2006-4074
Bierhaus, Edward0000-0001-5890-9821
Binzel, Richard0000-0002-9995-7341
Bottke, William0000-0002-1804-7814
Britt, Dan0000-0003-1377-813X
Brown, Michael0000-0002-8255-0545
Buie, Marc0000-0003-0854-745X
Christensen, Phil0000-0001-9625-4723
Emery, Joshua0000-0001-9265-9475
Grundy, Will0000-0002-8296-6540
Hamilton, Victoria E.0000-0001-8675-2083
Howett, Carly0000-0003-1869-4947
Mottola, Stefano0000-0002-0457-3872
Pätzold, Martin0000-0003-3479-856X
Reuter, Dennis0000-0002-6829-5680
Spencer, John0000-0003-4452-8109
Statler, Thomas S.0000-0003-4909-9542
Stern, S. Alan0000-0001-5018-7537
Sunshine, Jessica0000-0002-9413-8785
Weaver, Harold0000-0003-0951-7762
Wong, Ian0000-0001-9665-8429
Additional Information:© 2021. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Received 2021 March 8; revised 2021 April 13; accepted 2021 April 14; published 2021 August 24. The authors thank the entire Lucy mission team for their hard work and dedication.
Funding AgencyGrant Number
Subject Keywords:Jupiter trojans; Flyby missions
Issue or Number:5
Classification Code:Unified Astronomy Thesaurus concepts: Jupiter trojans (874); Flyby missions (545)
Record Number:CaltechAUTHORS:20210914-225401638
Persistent URL:
Official Citation:Harold F. Levison et al 2021 Planet. Sci. J. 2 171
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:110894
Deposited By: George Porter
Deposited On:16 Sep 2021 21:42
Last Modified:16 Sep 2021 21:42

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