Results 61 to 70 of about 1,091 (163)

Pre-impact Thermophysical Properties and the Yarkovsky Effect of NASA DART Target (65803) Didymos

The Planetary Science Journal
The NASA Double Asteroid Redirection Test (DART) spacecraft impacted the secondary body of the binary asteroid (65803) Didymos on 2022 September 26 and altered its orbit about the primary body.
Benjamin Rozitis, Simon F. Green, Samuel L. Jackson, Colin Snodgrass, Cyrielle Opitom, Thomas G. Müller, Ulrich C. Kolb, Steven R. Chesley, R. Terik Daly, Cristina A. Thomas, Andrew S. Rivkin   +10 more
doaj   +1 more source

Direct N-body Simulations of Satellite Formation around Small Asteroids: Insights from DART’s Encounter with the Didymos System

The Planetary Science Journal
We explore binary asteroid formation by spin-up and rotational disruption considering the NASA DART mission's encounter with the Didymos–Dimorphos binary, which was the first small binary visited by a spacecraft.
Harrison F. Agrusa, Yun Zhang, Derek C. Richardson, Petr Pravec, Matija Ćuk, Patrick Michel, Ronald-Louis Ballouz, Seth A. Jacobson, Daniel J. Scheeres, Kevin Walsh, Olivier Barnouin, R. Terik Daly, Eric Palmer, Maurizio Pajola, Alice Lucchetti, Filippo Tusberti, Joseph V. DeMartini, Fabio Ferrari, Alex J. Meyer, Sabina D. Raducan, Paul Sánchez   +20 more
doaj   +1 more source

Precise Orbit Determination of Mars-crossing Asteroids

The Astronomical Journal
This study investigates the orbit determination of the Mars-crossing asteroids (MCAs) with a focus on the possibility of detecting their Yarkovsky signals. We analyze the influences of force model uncertainties on MCA orbits, including the uncertainty of
Xin Liu, Xi-Yun Hou, Jun Yao, Shanhong Liu, Roberto Armellin, Qingbo Gan, Zhitao Yang   +6 more
doaj   +1 more source

Gauss-Radau Small-body Simulator (GRSS): An Open-source Library for Planetary Defense

The Planetary Science Journal
We present GRSS , a small-body propagation and orbit determination library specifically designed for planetary defense applications. GRSS is an end-to-end, open-source software tool that begins with optical observations obtained from the Minor Planet ...
Rahil Makadia, Davide Farnocchia, Steven R. Chesley, Siegfried Eggl   +3 more
doaj   +1 more source

Surface Ages for the Sample Return Asteroids Bennu, Ryugu, and Itokawa

The Planetary Science Journal
The OSIRIS-REx, Hayabusa2, and Hayabusa missions have returned samples from three near-Earth asteroids (NEAs), namely Bennu, Ryugu, and Itokawa, respectively.
William F. Bottke, Alex J. Meyer, David Vokrouhlický, David Nesvorný, Edward B. Bierhaus, Daniella N. DellaGiustina, Rachael Hoover, Harold C. Connolly, Dante S. Lauretta   +8 more
doaj   +1 more source

Radar and Optical Observations and Physical Modeling of Binary Near-Earth Asteroid 2018 EB

The Planetary Science Journal
We 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, Lance A. M. Benner, Shantanu P. Naidu, Nicholas Moskovitz, Jon D. Giorgini, Anne K. Virkki, Sean E. Marshall, Lord R. Dover, Agata Rożek, Stephen C. Lowry, Brian D. Warner, Patrick A. Taylor, Edgard G. Rivera-Valentin, Timothy A. Lister, Joseph P. Chatelain, Michael W. Busch, Christopher Magri, Joseph S. Jao, Lawrence G. Snedeker, Kenneth J. Lawrence   +19 more
doaj   +1 more source

On the Title of Moriarty's 'Dynamics of an Asteroid'

, 2013
We propose an explanation of the title of Prof. James Moriarty's treatise_Dynamics of an Asteroid_, a scientific work mentioned by Sherlock Holmes in_The Valley of Fear_ and prominently featured in Guy Ritchie's 2011 film_Sherlock Holmes: A Game of Shadows_. Our views on the subject differ from those expressed in Isaac Asimov's "The Ultimate Crime".
openaire   +2 more sources

Asteroid Spectral Dynamics Optimization

Asteroid surface spectra vary with time, space, and environmental factors. These spectral variations reflect surface material composition, space weathering processes, rotational effects, and impact events. This paper proposes an optimization algorithm inspired by asteroid spectral variations, named Asteroid Spectral Dynamics Optimization (ASDO).
openaire   +2 more sources

Asteroid sample return missions are critical for understanding our Solar System. [PDF]

Nat Commun
Bates H.
europepmc   +1 more source

Contact dynamics investigation towards microgravity experiment for asteroid-related scenarios. [PDF]

Multibody Syst Dyn
Vaghi S, Fodde I, Panicucci P, Cremasco A, Ferrari F.   +4 more
europepmc   +1 more source