The Psyche Gravity Investigation

Maria T. Zuber; Ryan S. Park; Linda T. Elkins-Tanton; J. F. Bell; Kristoffer N. Bruvold; David Bercovici; Bruce G. Bills; Richard P. Binzel; R. Jaumann; Simone Marchi; Carol A. Raymond; T. Roatsch; Charles C. Wang; Benjamin P. Weiss; Daniel Wenkert; Mark A. Wieczorek

doi:10.1007/s11214-022-00905-3

The Psyche Gravity Investigation

Maria T. Zuber, Ryan S. Park, Linda T. Elkins-Tanton, J. F. Bell, Kristoffer N. Bruvold, David Bercovici, Bruce G. Bills, Richard P. Binzel, R. Jaumann, Simone Marchi, Carol A. Raymond, T. Roatsch, Charles C. Wang, Benjamin P. Weiss, Daniel Wenkert, Mark A. Wieczorek

Earth and Space Exploration, School of (SESE)

Research output: Contribution to journal › Review article › peer-review

6 Scopus citations

Abstract

The objective of the NASA Psyche mission gravity science investigation is to map the mass distribution within asteroid (16) Psyche to elucidate interior structure and to resolve the question of whether this metal-rich asteroid represents a remnant metal core or whether it is a primordial body that never melted. Measurements of gravity will be obtained via the X-band telecommunication system on the Psyche spacecraft, collected from progressively lower mapping altitudes. Orbital gravity will allow an estimate of GM to better than 0.001 km³ s⁻². A spherical harmonic model of gravity to degree and order 10 will be achievable and, in concert with spherical harmonic data sets from topography and magnetometry, as well as surface composition data, will provide information regarding the spatial and radial distribution of mass that will be used to constrain the origin and evolution of (16) Psyche.

Original language	English (US)
Article number	57
Journal	Space Science Reviews
Volume	218
Issue number	8
DOIs	https://doi.org/10.1007/s11214-022-00905-3
State	Published - Dec 2022

Keywords

Asteroid
Gravity
Remote sensing
Spacecraft

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1007/s11214-022-00905-3

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title = "The Psyche Gravity Investigation",

abstract = "The objective of the NASA Psyche mission gravity science investigation is to map the mass distribution within asteroid (16) Psyche to elucidate interior structure and to resolve the question of whether this metal-rich asteroid represents a remnant metal core or whether it is a primordial body that never melted. Measurements of gravity will be obtained via the X-band telecommunication system on the Psyche spacecraft, collected from progressively lower mapping altitudes. Orbital gravity will allow an estimate of GM to better than 0.001 km3 s−2. A spherical harmonic model of gravity to degree and order 10 will be achievable and, in concert with spherical harmonic data sets from topography and magnetometry, as well as surface composition data, will provide information regarding the spatial and radial distribution of mass that will be used to constrain the origin and evolution of (16) Psyche.",

keywords = "Asteroid, Gravity, Remote sensing, Spacecraft",

author = "Zuber, {Maria T.} and Park, {Ryan S.} and Elkins-Tanton, {Linda T.} and Bell, {J. F.} and Bruvold, {Kristoffer N.} and David Bercovici and Bills, {Bruce G.} and Binzel, {Richard P.} and R. Jaumann and Simone Marchi and Raymond, {Carol A.} and T. Roatsch and Wang, {Charles C.} and Weiss, {Benjamin P.} and Daniel Wenkert and Wieczorek, {Mark A.}",

note = "Funding Information: This investigation is supported by the NASA Psyche Mission. A portion of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). Funding Information: This investigation is supported by the NASA Psyche Mission. A portion of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). Publisher Copyright: {\textcopyright} 2022, The Author(s).",

year = "2022",

month = dec,

doi = "10.1007/s11214-022-00905-3",

language = "English (US)",

volume = "218",

journal = "Space Science Reviews",

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AU - Zuber, Maria T.

AU - Park, Ryan S.

AU - Elkins-Tanton, Linda T.

AU - Bell, J. F.

AU - Bruvold, Kristoffer N.

AU - Bercovici, David

AU - Bills, Bruce G.

AU - Binzel, Richard P.

AU - Jaumann, R.

AU - Marchi, Simone

AU - Raymond, Carol A.

AU - Roatsch, T.

AU - Wang, Charles C.

AU - Weiss, Benjamin P.

AU - Wenkert, Daniel

AU - Wieczorek, Mark A.

N1 - Funding Information: This investigation is supported by the NASA Psyche Mission. A portion of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). Funding Information: This investigation is supported by the NASA Psyche Mission. A portion of this research was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). Publisher Copyright: © 2022, The Author(s).

PY - 2022/12

Y1 - 2022/12

N2 - The objective of the NASA Psyche mission gravity science investigation is to map the mass distribution within asteroid (16) Psyche to elucidate interior structure and to resolve the question of whether this metal-rich asteroid represents a remnant metal core or whether it is a primordial body that never melted. Measurements of gravity will be obtained via the X-band telecommunication system on the Psyche spacecraft, collected from progressively lower mapping altitudes. Orbital gravity will allow an estimate of GM to better than 0.001 km3 s−2. A spherical harmonic model of gravity to degree and order 10 will be achievable and, in concert with spherical harmonic data sets from topography and magnetometry, as well as surface composition data, will provide information regarding the spatial and radial distribution of mass that will be used to constrain the origin and evolution of (16) Psyche.

AB - The objective of the NASA Psyche mission gravity science investigation is to map the mass distribution within asteroid (16) Psyche to elucidate interior structure and to resolve the question of whether this metal-rich asteroid represents a remnant metal core or whether it is a primordial body that never melted. Measurements of gravity will be obtained via the X-band telecommunication system on the Psyche spacecraft, collected from progressively lower mapping altitudes. Orbital gravity will allow an estimate of GM to better than 0.001 km3 s−2. A spherical harmonic model of gravity to degree and order 10 will be achievable and, in concert with spherical harmonic data sets from topography and magnetometry, as well as surface composition data, will provide information regarding the spatial and radial distribution of mass that will be used to constrain the origin and evolution of (16) Psyche.

KW - Asteroid

KW - Gravity

KW - Remote sensing

KW - Spacecraft

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The Psyche Gravity Investigation

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Keywords

ASJC Scopus subject areas

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