@article{c56dcc3d1a474f0488f301c0d2ee187e,
title = "The Psyche Magnetometry Investigation",
abstract = "The objective of the Psyche Magnetometry Investigation is to test the hypothesis that asteroid (16) Psyche formed from the core of a differentiated planetesimal. To address this, the Psyche Magnetometer will measure the magnetic field around the asteroid to search for evidence of remanent magnetization. Paleomagnetic measurements of meteorites and dynamo theory indicate that a diversity of planetesimals once generated dynamo magnetic fields in their metallic cores. Likewise, the detection of a strong magnetic moment (>2×1014Am2) at Psyche would likely indicate that the body once generated a core dynamo, implying that it formed by igneous differentiation. The Psyche Magnetometer consists of two three-axis fluxgate Sensor Units (SUs) mounted 0.7 m apart along a 2.15-m long boom and connected to two Electronics Units (EUs) located within the spacecraft bus. The Magnetometer samples at up to 50 Hz, has a range of ±80,000nT, and an instrument noise of 39pTaxis−13σ integrated over 0.1 to 1 Hz. The two pairs of SUs and EUs provide redundancy and enable gradiometry measurements to suppress noise from flight system magnetic fields. The Magnetometer will be powered on soon after launch and acquire data for the full duration of the mission. The ground data system processes the Magnetometer measurements to obtain an estimate of Psyche{\textquoteright}s dipole moment.",
keywords = "Asteroids and planetesimals, Dynamo, Fluxgate magnetometer, Gradiometry, Magnetosphere, Paleomagnetism, Planetary differentiation, Psyche",
author = "Weiss, {Benjamin P.} and Merayo, {Jos{\'e} M.G.} and Ream, {Jodie B.} and Rona Oran and Peter Brauer and Cochrane, {Corey J.} and Kyle Cloutier and Elkins-Tanton, {Linda T.} and J{\o}rgensen, {John L.} and Clara Maurel and Park, {Ryan S.} and Polanskey, {Carol A.} and {de Soria Santacruz-Pich}, Maria and Raymond, {Carol A.} and Russell, {Christopher T.} and Daniel Wenkert and Wieczorek, {Mark A.} and Zuber, {Maria T.}",
note = "Funding Information: This work is supported by NASA contract NNM16AA09, “Psyche: Journey to a Metal World.” We thank the many engineers and scientists at JPL and UCLA who helped us develop this concept over the last decade including Kathryn Rowe, Steven Joy, Ryan Caron, Ryan Seaton, and Edwin Schauble. We also thank Brenda Carbone and Kerin Willis at MIT for administrative support. The 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 work is supported by NASA contract NNM16AA09, “Psyche: Journey to a Metal World.” We thank the many engineers and scientists at JPL and UCLA who helped us develop this concept over the last decade including Kathryn Rowe, Steven Joy, Ryan Caron, Ryan Seaton, and Edwin Schauble. We also thank Brenda Carbone and Kerin Willis at MIT for administrative support. The 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} 2023, The Author(s).",
year = "2023",
month = apr,
doi = "10.1007/s11214-023-00965-z",
language = "English (US)",
volume = "219",
journal = "Space Science Reviews",
issn = "0038-6308",
publisher = "Springer Netherlands",
number = "3",
}