Results 121 to 130 of about 821,143 (284)

Dimorphos’s Orbit Period Change and Attitude Perturbation due to Its Reshaping after the DART Impact

The Planetary Science Journal
On 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, Masatoshi Hirabayashi, Sabina D. Raducan, Petr Pravec, Shantanu P. Naidu, Harrison F. Agrusa, Steven Chesley, Fabio Ferrari, Martin Jutzi, Colby C. Merrill, Alex J. Meyer, Patrick Michel, Derek C. Richardson, Paul Sánchez, Peter Scheirich, Stephen R. Schwartz, Yun Zhang, Adriano Campo Bagatin, Po-Yen Liu, Andrew F. Cheng   +19 more
doaj   +1 more source

Potential of VIS‐IR imaging spectroscopy and SEM‐EDS and EMPA to map the mineralogical composition of NWA 7317 (CR6)

Meteoritics &Planetary Science, Volume 61, Issue 6, Page 1026-1044, June 2026.
Abstract Asteroid compositional analysis relies on comparing reflectance spectra with laboratory data from well‐characterized meteorites. To advance this comparison, we performed a comprehensive laboratory analysis on a slab of the Northwest Africa (NWA) 7317—CR6 carbonaceous chondrite.
Simone Pascucci, Tiberio Cuppone, Martina Casalini, Simone De Angelis, Antonio Lettino, Angelo Palombo, Eliana La Francesca, Gianrico Filacchione, Maria Cristina De Sanctis, Anna Galiano, Giovanni Pratesi   +10 more
wiley   +1 more source

Considering Contact Forces during the Formation of Planetesimals by Gravitational Collapse: Mutual Orbits, Spin States, and Shapes

The Astrophysical Journal
In 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, Stephen R. Schwartz, Seth A. Jacobson   +2 more
doaj   +1 more source

Long term nonlinear propagation of uncertainties in perturbed geocentric dynamics using automatic domain splitting

, 2014
Current approaches to uncertainty propagation in astrodynamics mainly refer tolinearized models or Monte Carlo simulations. Naive linear methods fail in nonlinear dynamics, whereas Monte Carlo simulations tend to be computationallyintensive. Differential
Makino, Kyoko, Wittig, A, Bernelli-Zazzera, Franco, Zazzera, FB, Di Lizia, Pierluigi, Wittig, Alexander, Makino, K, Armellin, Roberto, Armellin, R, Berz, M., Di Lizia, P, WITTIG, ALEXANDER NICOLAUS, Makino, K., Berz, M, BERNELLI ZAZZERA, FRANCO, Berz, Martin, Zazzera, Franco Bernelli   +16 more
core  

Dynamics of Satellites in Binary Near-Earth Asteroid Systems: A Study Based on Radar Observations [PDF]

, 2015
In the past 15 years, three previously unrecognized sub-populations ofnear-Earth asteroids (NEAs) have been discovered. About 15% of NEAsare binaries, at least 10% of NEAs are contact binaries, and dozensof asteroid pairs have been identified. Numerous
Naidu, Shantanu
core  

Characteristics and large bulk density of the C-type main-belt triple asteroid (93) Minerva [PDF]

, 2013
From a set of adaptive optics (AO) observations collected with the W.M. Keck telescope between August and September 2009, we derived the orbital parameters of the most recently discovered satellites of the large C-type asteroid (93) Minerva.
Durech, J., Enriquez, J.E., T.J. Dupuy, J. Strajnic, F. Marchis, Dupuy, T.J., Dalba, P.A., J. Ďurech, J. Berthier, Harris, A. W., Stockton, A., J.P. Emery, Strajnic, J., Marchis, F., Emery, J.P., Melbourne, J., J. Melbourne, A. Stockton, Fassnacht, C. D., F. Vachier, P.A. Dalba, H. Bouy, Dalba, P. A., C.D. Fassnacht, Bouy, H., Fassnacht, C.D., Harris, A.W., Berthier, J., A.W. Harris, Vachier, F., Emery, J. P., Dupuy, T. J., J.E. Enriquez, Enríquez, J. A.   +33 more
core   +1 more source

A satellite orbit drift in binary near-Earth asteroids (66391) 1999 KW4 and (88710) 2001 SL9 -- Indication of the BYORP effect [PDF]

, 2019
P. Scheirich, Petr Pravec, P. Kušnirák, K. Hornoch, Jay W. McMahon, Daniel J. Scheeres, D. Čapek, Donald P. Pray, H. Kučáková, A. Galád, J. Vraštil, Yu. N. Krugly, Nicholas Moskovitz, Louis Avner, B. A. Skiff, R. S. McMillan, Jeffrey A. Larsen, Melissa J. Brucker, A. F. Tubbiolo, Walt Cooney, J. Gross, D. Terrell, О. Бурхонов, K. E. Ergashev, Sh. A. Ehgamberdiev, Petr Fatka, Russell I. Durkee, Eva Lilly Schunova, R. Inasaridze, V. Ayvazian, G. V. Kapanadze, N. M. Gaftonyuk, Juan A. Sanchez, V. Reddy, L. McGraw, Michael S. P. Kelley, I. Molotov   +36 more
openalex   +1 more source

Effect of non-sphericity of gravitational field of the asteroid on the its satellites orbits evolution

, 2015
Lately it has become possible to sufficiently precise definition of the physical and geometric characteristics of asteroid systems using radar observations (http://echo.jpl.nasa.gov/~lance/binary.neas.html), which allowed calculating the asymmetry of
Troianskyi, V. V.
core  

Italian CubeSats for Moon and Asteroid Imaging [PDF]

, 2022
In the last decades, small satellites have consolidated their role in support to implement space missions in a fast cheap and effective way. Space science is one of the areas where Cubesat can be used to complement the investigations performed by the ...
Lombardo, M., Impresario, G., Dotto, E., Simonetti, S., Pirrotta, S., Di Tana, V., Zinzi, A., Zannoni, M., Capannolo, A., Gai, I., Zanotti, G., Amoroso, M., Miglioretti, F., Cotugno, B., Della Corte, V.   +14 more
core  

High-speed Boulders and the Debris Field in DART Ejecta

The Planetary Science Journal
On 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, Jessica M. Sunshine, Masatoshi Hirabayashi, Carolyn M. Ernst, R. Terik Daly, Harrison F. Agrusa, Olivier S. Barnouin, Jian-Yang Li, Kathryn M. Kumamoto, Megan Bruck Syal, Sean E. Wiggins, Evan Bjonnes, Angela M. Stickle, Sabina D. Raducan, Andrew F. Cheng, David A. Glenar, Ramin Lolachi, Timothy J. Stubbs, Eugene G. Fahnstock, Marilena Amoroso, Ivano Bertini, John R. Brucato, Andrea Capannolo, Gabriele Cremonese, Massimo Dall’Ora, Vincenzo Della Corte, J. D. P. Deshapriya, Elisabetta Dotto, Igor Gai, Pedro H. Hasselmann, Simone Ieva, Gabriele Impresario, Stavro L. Ivanovski, Michèle Lavagna, Alice Lucchetti, Francesco Marzari, Elena Mazzotta Epifani, Dario Modenini, Maurizio Pajola, Pasquale Palumbo, Simone Pirrotta, Giovanni Poggiali, Alessandro Rossi, Paolo Tortora, Marco Zannoni, Giovanni Zanotti, Angelo Zinzi   +46 more
doaj   +1 more source