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Communication Dans Un Congrès Année : 2019

ESCAPADE: coordinated multipoint observations of the Martian magnetosphere

Shannon Curry
Janet Luhmann
Aroh Barjatya
Davin Larson
  • Fonction : Auteur
  • PersonId : 1032833
Roberto Livi
Phyllis L Whittlesey
  • Fonction : Auteur
  • PersonId : 1068579
Ronan Modolo
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  • PersonId : 916163
Paul Withers

Résumé

In the last 20 years, multi-spacecraft missions like Cluster II, THEMIS, Van Allen Probes, and MMS have revolutionized our understanding of the causes, patterns, and variability of a wide array of space plasma phenomena in the Earth's magnetospheric environment. ESCAPADE is a twin-spacecraft Mars mission that will similarly revolutionize our understanding of how solar wind momentum and energy flows throughout Mars' magnetosphere to drive ion and sputtering escape, two processes which have helped shape Mars' climate evolution over solar system history. ESCAPADE will measure magnetic field strength and topology, ion plasma distributions (separated into light and heavy masses), as well as suprathermal electron flows and thermal electron and ion densities from elliptical, 200 km x ~7000 km orbits. ESCAPADE consists of two small spacecraft (<90 kg), traveling to Mars via solar electric propulsion as a rideshare with the Psyche metal-asteroid mission in August 2022, matching Mars' heliocentric orbit until capture and spiral-down to science orbits. ESCAPADE's strategically-designed, 1-year, 2-part scientific campaign of temporally and spatially-separated multipoint measurements in different parts of Mars' diverse plasma environment will for the first time unravel the cause-and-effect of solar wind control of ion and sputtering escape. Figure 1 shows ESCAPADE's orbits within a hybrid simulation of the solar wind interaction with Mars, where the color scale represents ion velocity, blue lines are magnetic field, while white lines are sample proton trajectories and spacecraft orbits. ESCAPADE has been selected for Phase A/B study by NASA as one of three finalists in the SIMPLEX-II program. We will report on ESCAPADE's science goals, objectives, and requirements, as well as provide a status update.
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Dates et versions

insu-04530980 , version 1 (03-04-2024)

Identifiants

  • HAL Id : insu-04530980 , version 1

Citer

Robert Lillis, Shannon Curry, D.W. Curtis, Ellen Taylor, Janet Luhmann, et al.. ESCAPADE: coordinated multipoint observations of the Martian magnetosphere. American Geophysical Union, Fall Meeting 2019, Dec 2019, San Francisco, United States. pp.abstract #SM42B-09. ⟨insu-04530980⟩
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