Results 41 to 50 of about 440 (144)
The Planetary Science JournalAsteroid impacts potentially represent a substantial threat to humanity, but one that we can plan for and mitigate. To design an effective asteroid mitigation mission, however, it is important to have as detailed knowledge of the asteroid threat as ...
Angela M. Stickle +12 more
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The Astronomical JournalWe report on the ephemeris development for Menoetius, the satellite of Patroclus. Our data set consisted of ground–based and Hubble Space Telescope relative astrometry, as well as 42 lightcurves from the mutual events seasons in 2007, 2012, and 2017/2018.
Marina Brozović +7 more
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JIF (Jurnal Ilmu Fisika)Asteroids have various shapes (mostly irregular) and physical characteristics. Space missions to asteroids are becoming frequent, and a global mapping scheme is applied to collect the asteroids’ physical properties. Depending on the mission purposes, the
La Fatsa Fauzia, Dermawan Budi
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Dimorphos’s Orbit Period Change and Attitude Perturbation due to Its Reshaping after the DART Impact
The Planetary Science JournalOn 2022 September 26 (UTC), NASA's Double Asteroid Redirection Test (DART) mission achieved a successful impact on Dimorphos, the secondary component of the near-Earth binary asteroid system (65803) Didymos. Subsequent ground-based observations suggest a
Ryota Nakano +19 more
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The Astrophysical JournalIn this work, we apply a soft-sphere discrete element method (SSDEM) within the PKDGRAV N -body integrator to investigate the formation of planetesimal systems through the gravitational collapse of clouds of superparticles. Previously published numerical
Jackson T. Barnes +2 more
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High-speed Boulders and the Debris Field in DART Ejecta
The Planetary Science JournalOn 2022 September 26 the Double Asteroid Redirection Test (DART) spacecraft collided with Dimorphos, the moon of the near-Earth asteroid 65803 Didymos, in a full-scale demonstration of a kinetic impactor concept.
Tony L. Farnham +46 more
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Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB
The Planetary Science JournalWe report radar, photometric, and visible-wavelength spectrophotometry observations of NEA 2018 EB obtained in 2018. The radar campaign started at Goldstone (8560 MHz, 3.5 cm) on April 7, and it was followed by more extensive observations from October 5 ...
Marina Brozović +19 more
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Weywot, an Unusually Low-albedo Satellite in the Trans-Neptunian Region
The Astrophysical Journal LettersWeywot is the largest satellite of the candidate dwarf planet Quaoar, which also hosts a remarkable ring system located beyond its Roche limit—a configuration that challenges conventional understanding of ring dynamics.
Estela Fernández-Valenzuela +42 more
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Synchronous Rotation in the (120347) Salacia–Actaea System
The Planetary Science JournalWe report on roughly 16 yr of photometric monitoring of the trans-Neptunian binary system (120347) Salacia–Actaea, which provides significant evidence that Salacia and Actaea are tidally locked to the mutual orbital period in a fully synchronous ...
Cameron Collyer +10 more
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A Change of the Rotation Period of Asteroid (65803) Didymos Caused by the DART Impact
The Planetary Science JournalOn 2022 September 26, the NASA Double Asteroid Redirection Test (DART) spacecraft impacted Dimorphos, the secondary component of the binary asteroid (65803) Didymos. This experiment tested the kinetic impactor technology for diverting dangerous asteroids.
Josef Ďurech +5 more
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