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The 2014 KCG Meteor Outburst: Clues to a Parent BodyThe Kappa Cygnid (KCG) meteor shower exhibited unusually high activity in 2014, producing ten times the typical number of meteors. The shower was detected in both radar and optical systems and meteoroids associated with the outburst spanned at least five decades in mass. In total, the Canadian Meteor Orbit Radar, European Network, and NASA All Sky and Southern Ontario Meteor Network produced thousands of KCG meteor trajectories. Using these data, we have undertaken a new and improved characterization of the dynamics of this little-studied, variable meteor shower. The Cygnids have a di use radiant and a significant spread in orbital characteristics, with multiple resonances appearing to play a role in the shower dynamics. We conducted a new search for parent bodies and found that several known asteroids are orbitally similar to the KCGs. N-body simulations show that the two best parent body candidates readily transfer meteoroids to the Earth in recent centuries, but neither produces an exact match to the KCG radiant, velocity, and solar longitude. We nevertheless identify asteroid 2001 MG1 as a promising parent body candidate.
Document ID
20150016190
Acquisition Source
Marshall Space Flight Center
Document Type
Abstract
Authors
Moorhead, Althea V.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Brown, Peter G.
(University of Western Ontario London, Ontario, Canada)
Spurny, Pavel
(Ondrejov Observatory Czechoslovakia)
Cooke, William J.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Date Acquired
August 19, 2015
Publication Date
May 3, 2015
Subject Category
Earth Resources And Remote Sensing
Astronomy
Report/Patent Number
M15-4444
Report Number: M15-4444
Meeting Information
Meeting: 2015 Meeting of the AAS Division on Dynamical Astronomy
Location: Pasadena, CA
Country: United States
Start Date: May 3, 2015
End Date: May 7, 2015
Sponsors: California Inst. of Tech., American Astronautical Society
Distribution Limits
Public
Copyright
Public Use Permitted.
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