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Psyche spacecraft

Psyche is a solar-electric interplanetary spacecraft built around a Maxar chassis and integrated and operated by NASA’s Jet Propulsion Laboratory. Two cross-shaped five-panel solar arrays cover about 75 m² and were designed to provide 21 kW near Earth, falling to about 2.3 kW at the asteroid’s greatest solar distance. Four xenon Hall thrusters provide primary propulsion, with one operating at a time. After its Mars gravity assist, Psyche began nearly continuous thrusting on 28 September 2026; JPL plans approximately 90% thrust duty through its expected summer 2029 arrival. Thruster power will decrease as available sunlight falls. Twelve nitrogen cold-gas thrusters provide additional momentum management and support deployment, safe-mode and other operations when the main electric propulsion is unavailable.

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Identity

Aliases
PsychePsyche spacecraftNASA Psyche spacecraft
Family Name
Psyche
Full Name
Psyche spacecraft
Roles
interplanetary_probeflybyorbiterresearchtechnology_demonstrator
Status
active
Type
spacecraft

Details

Description
Psyche is a solar-electric interplanetary spacecraft built around a Maxar chassis and integrated and operated by NASA’s Jet Propulsion Laboratory. Two cross-shaped five-panel solar arrays cover about 75 m² and were designed to provide 21 kW near Earth, falling to about 2.3 kW at the asteroid’s greatest solar distance. Four xenon Hall thrusters provide primary propulsion, with one operating at a time. After its Mars gravity assist, Psyche began nearly continuous thrusting on 28 September 2026; JPL plans approximately 90% thrust duty through its expected summer 2029 arrival. Thruster power will decrease as available sunlight falls. Twelve nitrogen cold-gas thrusters provide additional momentum management and support deployment, safe-mode and other operations when the main electric propulsion is unavailable.
First Flight Year
2,023
Manufacturer
Operator
Propulsion Configurations
  • Entries
    • Count
      4
      Placement
      spacecraft
      Propulsion System
      Role
      main
      Variant Notes
      Four SPT-140 Hall thrusters; one active at a time, up to 240 mN per NASA Psyche documentation.
    Name
    Psyche main solar-electric propulsion
    Notes
    NASA documents four SPT-140 Hall-effect thrusters using xenon; only one thruster operates at a time. The separately described nitrogen cold-gas system remains outside this packet because its exact canonical identity is unresolved.
Spacecraft Specs
Launch Mass
…
Reusability
expendable

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Creation Time
July 29, 2026 at 10:14:49 UTC
Updated Time
October 29, 2026 at 15:50:02 UTC