Статья

The Double Asteroid Redirection Test (DART): Planetary Defense Investigations and Requirements

A. S. RivkinJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]N. L. ChabotJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]A. M. StickleJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]Cristina A. ThomasNorthern Arizona University, Department of Astronomy and Planetary Science, P.O. Box 6010, Flagstaff, AZ 86011, USAD. C. RichardsonDepartment of Astronomy, University of Maryland, College Park, MD 20742-2421, USAO. S. BarnouinJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]Eugene G. FahnestockJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USAC. M. ErnstJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]A. F. ChengJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]Steven R. ChesleyJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USAShantanu P. NaiduJet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USAThomas S. StatlerBrent W. BarbeeNASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USAHarrison AgrusaDepartment of Astronomy, University of Maryland, College Park, MD 20742-2421, USANicholas MoskovitzLowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001, USAR. T. DalyJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]Petr PravecAstronomical Institute, Academy of Sciences of the Czech Republic, Fričova 1, Ondřejov CZ-25165, Czech RepublicP. ScheirichAstronomical Institute, Academy of Sciences of the Czech Republic, Fričova 1, Ondřejov CZ-25165, Czech RepublicE. DottoINAF Osservatorio Astronomico di Roma, Via Frascati 33, 00078, Monte Porzio Catone, Roma, ItalyVincenzo Della CorteINAF Istituto di Astrofisica e Planetologia Spaziali, Via Fosso del Cavaliere 100, 00133, Roma, ItalyPatrick MichelUniversité Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, Lagrange Laboratory, FranceM. KüppersEuropean Space Astronomy Centre, European Space Agency, Urbanización Villafranca del Castillo, Villanueva de la Cañada, E-28692 Madrid, SpainJustin AtchisonJohns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Road, Laurel, MD, 20723, USA; [email protected]Masatoshi HirabayashiAerospace Engineering, Auburn University, Auburn, AL, 36849, USA

2021en

ABI

Аннотация

Abstract The Double Asteroid Redirection Test (DART) is a Planetary Defense mission, designed to demonstrate the kinetic impactor technique on (65803) Didymos I Dimorphos, the secondary of the (65803) Didymos system. DART has four level 1 requirements to meet in order to declare mission success: (1) impact Dimorphos between 2022 September 25 and October 2, (2) cause at least a 73 s change in its binary orbit period via the impact, (3) measure the change in binary period to an uncertainty of 7.3 s or less, and (4) measure the momentum transfer efficiency ( β ) of the impact and characterize the resulting effects of the impact. The data necessary to achieve these requirements will be obtained and analyzed by the DART Investigation Team. We discuss the rationales for the data to be gathered, the analyses to be undertaken, and how mission success will be achieved.

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Идентификаторы

DOI: 10.3847/psj/ac063e

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar