J. B. Ream
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View article: Psyche Mission Description and Design Rationale
Psyche Mission Description and Design Rationale Open
The Psyche spacecraft launched on October 13, 2023 to journey to the asteroid of the same name. Psyche is the largest M-class asteroid and possibly the remanent core of an early differentiated planetesimal that was disrupted by collisions.…
View article: Initial checkout of the Psyche electric propulsion system
Initial checkout of the Psyche electric propulsion system Open
View article: Evidence for Magnetically‐Driven Accretion in the Distal Solar System
Evidence for Magnetically‐Driven Accretion in the Distal Solar System Open
Paleomagnetic measurements of meteorites indicate that magnetic fields existed in the inner solar nebula capable of driving accretion at rates similar to those observed for young stellar objects with protoplanetary disks. However, the fiel…
View article: Magnetic Field Modeling and Visualization of the Europa Clipper Spacecraft
Magnetic Field Modeling and Visualization of the Europa Clipper Spacecraft Open
The goal of NASA’s Europa Clipper Mission is to investigate the habitability of the subsurface ocean within the Jovian moon Europa using a suite of ten investigations. The Europa Clipper Magnetometer (ECM) and Plasma Instrument for Magneti…
View article: The Psyche Magnetometry Investigation
The Psyche Magnetometry Investigation Open
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 arou…
View article: The Magnetometer on the Psyche mission
The Magnetometer on the Psyche mission Open
The asteroid (16) Psyche is the target of the NASA Psyche mission, where the magnetometer is one of the three science instruments on board. Its purpose is to prove whether the asteroid formed from the core of a differentiated planetesimal.…
View article: Maximum Energies of Trapped Particles Around Magnetized Planets and Small Bodies
Maximum Energies of Trapped Particles Around Magnetized Planets and Small Bodies Open
Energetic charged particles trapped in planetary radiation belts are hazardous to spacecraft. Planned missions to iron‐rich asteroids with possible strong remanent magnetic fields require an assessment of trapped particles energies. Using …
View article: Magnetic gradiometry using frequency-domain filtering
Magnetic gradiometry using frequency-domain filtering Open
Accurate measurements of ambient planetary and interplanetary magnetic fields using spacecraft magnetometers typically require accounting for interfering magnetic fields generated by the flight system (FS). The most common method for remov…
View article: Propagation of Pi2 pulsations through the braking region in global MHD simulations
Propagation of Pi2 pulsations through the braking region in global MHD simulations Open
We investigate the propagation of Pi2 period pulsations from their origin in the plasma sheet through the braking region, the region where the fast flows are slowed as they approach the inner edge of the plasma sheet. Our approach is to us…