Asteroid 16 Psyche: Shape, Features, and Global Map

@article{Shepard2021Asteroid1P,
  title={Asteroid 16 Psyche: Shape, Features, and Global Map},
  author={Michael K. Shepard and Katherine de Kleer and Saverio Cambioni and Patrick A. Taylor and Anne K. Virkki and Edgard G. R{\'i}vera-Valentin and Carolina Rodriguez S{\'a}nchez-Vahamonde and Luisa Fernanda Zambrano-Marin and Christopher Magri and David Dunham and John Moore and Maria Camarca},
  journal={The Planetary Science Journal},
  year={2021},
  volume={2}
}
We develop a shape model of asteroid 16 Psyche using observations acquired in a wide range of wavelengths: Arecibo S-band delay-Doppler imaging, Atacama Large Millimeter Array (ALMA) plane-of-sky imaging, adaptive optics (AO) images from Keck and the Very Large Telescope (VLT), and a recent stellar occultation. Our shape model has dimensions 278 (−4/+8 km) × 238(−4/+6 km) × 171 km (−1/+5 km), an effective spherical diameter D eff = 222-1/+4 km, and a spin axis (ecliptic lon, lat) of (36°, −8… 

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The asteroid (16) Psyche is the largest of the M-type asteroids, which have been hypothesized to be the cores of disrupted planetesimals and the parent bodies of the iron meteorites. While recent

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