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--(65803) Didymos and Dimorphos --discovery and notes:

Primary discovered1996 Apr 11from Kitt Peak Observatory, Arizona, USAby Spacewatch Program.Alternate designation(s):1996 GT.Permanent number assigned 2003 Sep 10.

Named 2004 Jul 13 for the Greek word for "twin" [MPC052326].

Companion discovered2003 Nov 20 by P. Pravec, L. A. M. Benner, M. C. Nolan, P. Kusnirak, D. Pray, J. D. Giorgini, R. F. Jurgens, S. J. Ostro, J.-L. Margot, C. Magri, A. Grauer, and S. Larsonusinglightcurve observations from Ondrejov Observatory, Czech Republic; Jet Propulsion Laboratory; National Astronomy and Ionosphere Center; Ondrejov Observatory, Czech Republic; Greene, Rhode Island, USA; University of California, Los Angeles, California, USA; University of Maine at Farmington, Maine, USA; University of Arkansas at Little Rock, Arkansas, USA; University of Arizona, Arizona, USA.Announced2003 Nov 28 [P03b].Permanent designation I Dimorphos, assigned 2020 Jun 23; named for the Greek word for “having two forms” [MPEC2020M83].

Shape model published [N20b].

--Links, more technical:

• IAUC 8244.
• Binary NEA (65803) 1996 GT.
• 65803 (1996 GT) Planning.

--Links, less technical:

--Links to ADS abstracts:

• Galvez, A., Carnelli, I., Fontaine, M., & Corral Van Damme, C. 2012, European Planetary Science Congress 2012Asteroid Impact Mission (aim) & Deflection Assessment: AN Opportunity to Understand Impact Dynamics and Modelling
• Fang, Julia & Margot, Jean-Luc 2012, The Astronomical JournalThe Role of Kozai Cycles in Near-Earth Binary Asteroids
• Fang, Julia & Margot, Jean-Luc 2012, The Astronomical JournalBinary Asteroid Encounters with Terrestrial Planets: Timescales and Effects
• Fang, Julia & Margot, Jean-Luc 2012, The Astronomical JournalNear-Earth Binaries and Triples: Origin and Evolution of Spin-Orbital Properties
• Benner, Lance A. M., Margot, J., Nolan, M. C., Giorgini, J. D., Brozovic, M., Scheeres, D. J., Magri, C., & Ostro, S. J. 2010, Bulletin of the American Astronomical SocietyRadar Imaging and a Physical Model of Binary Asteroid 65803 Didymos
• Pravec, Petr & Scheirich, P. 2010, Bulletin of the American Astronomical SocietyBinary System Candidates for Detection of BYORP
• Scheirich, P. & Pravec, P. 2009, IcarusModeling of lightcurves of binary asteroids
• Bellerose, J. & Yano, H. 2009, Lunar and Planetary Science ConferenceRequirements and Constraints for Exploration of Binary Asteroid Systems: From Didymos to Hektor
• Cook, Amanda, Bellerose, J., Rozitis, B., Yamaguchi, T., Mester, C., Murdoch, N., & Marchis, F. 2008, Bulletin of the American Astronomical SocietyDidymos Explorer: A Mission Concept for Visiting a Binary Asteroid
• Györgyey Ries, J., Varadi, F., Barker, E. S., & Shelus, P. J. 2006, New Horizons in Astronomy: Frank N. Bash SymposiumPhotometry of Near Earth Asteroids at McDonald Observatory
• Kitazato, K., Abe, M., Nishihara, S., Sarugaku, Y., Kuroda, D., Kinoshita, D., & Ip, W.-H. 2006, 36th COSPAR Scientific AssemblyGround-based observations of near-Earth asteroid mission targets
• Ries, J. G., Barker, E. S., Varadi, F., & Shelus, P. J. 2004, Bulletin of the American Astronomical SocietyR-Band Photometry of Potentially Hazardous Asteroids at McDonald Observatory
• Kitazato, K., Abe, M., Mito, H., Tarusawa, K., Soyano, T., Nishihara, S., & Sarugaku, Y. 2004, Lunar and Planetary Science ConferencePhotometric Behaviour Dependent on Solar Phase Angle and Physical Characteristics of Binary Near-Earth-Asteroid (65803) 1996 GT
• Pravec, P., Benner, L. A. M., Nolan, M. C., Kusnirak, P., Pray, D., Giorgini, J. D., Jurgens, R. F., Ostro, S. J., Margot, J.-L., Magri, C., Grauer, A., & Larson, S. 2003, International Astronomical Union Circular(65803) 1996 GT
• Brownlee, J. W., Hergenrother, C. W., Larson, S. M., & Marsden, B. G. 1998, Minor Planet Circulars1996 GT
• Alday, A., Moore, K., Tranilla, M., Goggia, T., Razo, V., Sylva, A., Ota, M., Fricke, G., Becker, J., Africano, J., Sydney, P., Nishimoto, D., O'Connell, D., Kervin, P., Kraszewski, B., Soo Hoo, V., Montani, J., Scotti, J. V., & Williams, G. V. 1996, Minor Planet Circulars1996 GT

©2003-2014, 2021by Wm. Robert Johnston.
Last modified9 October 2021.
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