Results 1 to 10 of about 14,213 (267)

SVD-accelerated T-matrix Method for Simulation of Scattering by Electrically Large Sphere Clusters and ISAR Imaging of Asteroid-like Bodies

The Planetary Science Journal
China’s Tianwen-2 mission will carry a radar to detect the internal structure of the asteroid 469219 Kamoʻoalewa. The model of scattering from the asteroid is important for the mission.
Zhanyang Weng, Niutao Liu, Ya-Qiu Jin
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Near-Earth Objects (NEO) and other current space threats

Security and Defence Quarterly, 2020
Objectives The subject of the study are space threats – Near-Earth Objects (NEO) and Potentially Hazardous Asteroids (PHA). Methods The research methods employed in this article included the classic theoretical methods used in security sciences and a
Radosław Bielawski
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Pre-impact Albedo Map and Photometric Properties of the (65803) Didymos Asteroid Binary System from DART and Ground-based Data

The Planetary Science Journal
This study provides a pre-impact map of the albedo of the Double Asteroid Redirection Test (DART) target Dimorphos corrected for all the effects of viewing geometry, as well as an estimate of photometric roughness for the hemisphere imaged by DART. Other
B. J. Buratti, J. Pittichová, I. Mishra, J. K. Hillier, J. A. Mosher, S. R. Chesley, J. M. Sunshine, O. Barnouin, C. M. Ernst, R. T. Daly, J-Y Li, A. F. Cheng, A. S. Rivkin, J. Rizos   +13 more
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Colors and Dynamics of a Near-Sun Orbital Asteroid Family: 2021 PH27 and 2025 GN1

The Astrophysical Journal Letters
We observed the dynamically similar near-Sun asteroids 2021 PH27 and 2025 GN1 for their optical colors. These objects have the lowest known semimajor axes of any asteroids.
Scott S. Sheppard, Henry H. Hsieh, Petr Pokorný, David J. Tholen, Audrey Thirouin, Carlos Contreras, Marcelo D. Mora, Mauricio Martinez, Ivonne Toro   +8 more
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Keck and Gemini Characterization of Hayabusa2# Rendezvous Target 1998 KY26

The Astronomical Journal
Near-Earth object (NEO) 1998 KY _26 is a target of the Hayabusa2# spacecraft, which it will rendezvous with in 2031 July. The asteroid has been noted to rotate rapidly and has a large out-of-plane nongravitational acceleration.
Bryce T. Bolin, Christoffer Fremling, Matthew Belyakov, Jin Beniyama, Marco Delbo, Robert Jedicke, Ian Wong, Laura-May Abron, Keith S. Noll, Andrew W. Stephens   +9 more
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(523599) 2003 RM: The Asteroid that Wanted to be a Comet

The Planetary Science Journal, 2023
We report a statistically significant detection of nongravitational acceleration on the subkilometer near-Earth asteroid (523599) 2003 RM. Due to its orbit, 2003 RM experiences favorable observing apparitions every 5 yr.
Davide Farnocchia, Darryl Z. Seligman, Mikael Granvik, Olivier Hainaut, Karen J. Meech, Marco Micheli, Robert Weryk, Steven R. Chesley, Eric J. Christensen, Detlef Koschny, Jan T. Kleyna, Daniela Lazzaro, Michael Mommert, Richard J. Wainscoat   +13 more
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New Astronomical Observatory Design for the Detection and Tracking of Satellite Objects: The Satellite Robotic Observatory (SRO)

Remote Sensing
Robotic Astronomical Observatories (RAOs) have provided very good results in different research projects in astrophysics/astronomy. Their applications in the detection, tracking, and identification of near-Earth objects have contributed to the ...
Francisco Espartero, Javier Cubas, David Nespral, Santiago Pindado   +3 more
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The Second International Asteroid Warning Network Timing Campaign: 2005 LW3

The Planetary Science Journal, 2023
The Earth close approach of near-Earth asteroid 2005 LW3 on 2022 November 23 represented a good opportunity for a second observing campaign to test the timing accuracy of astrometric observation. With 82 participating stations, the International Asteroid
Davide Farnocchia, Vishnu Reddy, James M. Bauer, Elizabeth M. Warner, Marco Micheli, Matthew J. Payne, Tony Farnham, Michael S. Kelley, Miguel R. Alarcon, Paolo Bacci, Roberto Bacci, Mauro Bachini, Kevin Baillié, Giorgio Baj, Daniel Bamberger, Anatoly P. Barkov, Stefan Beck, Guido Betti, Enrico Biancalani, Bryce T. Bolin, David Briggs, Luca Buzzi, Haowen Cheng, Eric Christensen, Alessandro Coffano, Luca Conversi, Christophe Demeautis, Larry Denneau, Josselin Desmars, Anlaug A. Djupvik, Leonid Elenin, Paolo Fini, Tobias Felber, Randy Flynn, Gianni Galli, Mikael Granvik, Bill Gray, Zuri Gray, Luca Grazzini, Werner Hasubick, Tobias Hoffmann, Robert Holmes, Marco Iozzi, Alexander L. Ivanov, Viktor A. Ivanov, Natalya V. Ivanova, Cristóvão Jacques, Hai Jiang, Zheng Jinghui, Anni Kasikov, Myung-Jin Kim, Balaji Kumar, Hee-Jae Lee, Bin Li, Jing Liu, Javier Licandro, Tyler Linder, Vadim E. Lysenkov, Martina Maestripieri, Andrea Mantero, Vladimiro Marinello, Jennie McCormick, Darrel Moon, Alessandro Nastasi, James D. Neill, Guenther Neue, Artem O. Novichonok, Francisco Ocaña, Gianpaolo Pizzetti, Anton Pomazan, Josiah N. Purdum, Christophe Ratinaud, Dong-Goo Roh, Filipp D. Romanov, Nello Ruocco, Toni Santana-Ros, Toni Scarmato, Anastasia Schmalz, Sergei Schmalz, Miquel Serra-Ricart, Clay Sherrod, Nick Sioulas, Andrea Soffiantini, Giacomo Succi, David J. Tholen, Jeppe S. Thomsen, William Thuillot, Richard Wainscoat, Guy Wells, Robert Weryk, Nikolai A. Yakovenko, Hong-Suh Yim, Chengxing Zhai   +92 more
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Infrared Fluxes and Lightcurves of Near-Earth Objects: The Full Spitzer Sample

The Astronomical Journal
The IRAC camera on the Spitzer Space Telescope observed 2175 near-Earth objects (NEOs) during its Warm Mission phase, primarily in three large surveys, and also in a small number of a dedicated projects.
Joseph L. Hora, Alicia J. Allen, David E. Trilling, Howard A. Smith, Andrew McNeill   +4 more
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Stratified Evolution of Ryugu’s Regolith Revealed by Spectroscopic Analyses of Two Hayabusa2 Collected Particles

The Astrophysical Journal
We present Fourier transform infrared (FTIR) and Raman spectroscopic analyses of two particles (A0226 and C0242) returned from the C-type asteroid Ryugu by the Hayabusa2 mission.
M. Angrisani, X. Shehaj, E. Palomba, G. Pratesi, M. Romani, M. Cestelli Guidi, A. Longobardo, F. Dirri, M. D’Amore, T . Catelani   +9 more
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