Lucy Mission to the Trojan Asteroids: Science Goals

被引：81

作者：

Levison, Harold F. ^{[1
]}

Olkin, Catherine B. ^{[1
]}

Noll, Keith S. ^{[2
]}

Marchi, Simone ^{[1
]}

Bell III, James F. ^{[3
]}

Bierhaus, Edward ^{[4
]}

Binzel, Richard ^{[5
]}

Bottke, William ^{[1
]}

Britt, Dan ^{[6
]}

Brown, Michael ^{[7
]}

Buie, Marc ^{[1
]}

Christensen, Phil ^{[3
]}

Emery, Joshua ^{[8
]}

Grundy, Will ^{[9
]}

Hamilton, Victoria E. ^{[1
]}

Howett, Carly ^{[1
]}

Mottola, Stefano ^{[10
]}

Paetzold, Martin ^{[11
]}

Reuter, Dennis ^{[2
]}

Spencer, John ^{[1
]}

Statler, Thomas S. ^{[12
]}

Stern, S. Alan ^{[1
]}

Sunshine, Jessica ^{[13
]}

Weaver, Harold ^{[14
]}

Wong, Ian ^{[5
]}

机构：

[1] Southwest Res Inst, 1050 Walnut St,Suite 300, Boulder, CO 80302 USA

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Arizona State Univ, Sch Earth & Space Explorat, Box 876004, Tempe, AZ 85287 USA

[4] Lockheed Martin, Space Support Bldg,MS S811012257,S Wadsworth Blvd, Littleton, CO 80125 USA

[5] MIT, Dept Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[6] Univ Cent Florida, Dept Phys, Orlando, FL USA

[7] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[8] No Arizona Univ, Dept Astron & Planetary Sci, NAU Box 6010, Flagstaff, AZ 86011 USA

[9] Lowell Observ, 1400 W Mars Hill Rd, Flagstaff, AZ 86001 USA

[10] DLR, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin, Germany

[11] Univ Cologne, Rhein Inst Umweltforschung, Dept Planetary Res, Aachenerstr 209, D-50931 Cologne, Germany

[12] NASA Headquarters, 300 Hidden Figures Way SW, Washington, DC 20546 USA

[13] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[14] Johns Hopkins Univ, Appl Phys Lab APL, Space Explorat Sect, 11100 Johns Hopkins Rd, Laurel, MD 20723 USA

来源：

PLANETARY SCIENCE JOURNAL | 2021年 / 2卷 / 05期

关键词：

SURFACE-COMPOSITION; JUPITER TROJANS; 21; LUTETIA; WATER ICE; DENSITY; ORIGIN; VESTA; PLANET; CERES; SHAPE;

D O I：

10.3847/PSJ/abf840

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 L-4 and L-5 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.

引用

页数：13

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