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Session Proposal: Close encounters in the Earth-Moon System: Apophis, 2024 YR4, and the future of Planetary Defense (AGU25)

P006
Close encounters in the Earth-Moon System: Apophis, 2024 YR4, and the future of Planetary Defense

Session ID#: 248431

Session Description:
On 27 January 2025, near-Earth asteroid (NEA) 2024 YR4 reached a record Torino Scale impact rating of 3 before additional observations ruled out an Earth impact in 2032. A >1% impact probability remains, though, with the Moon. On 13 April 2029, (99942) Apophis will pass within geosynchronous orbit, offering a once-in-7kyr opportunity for investigations into Earth’s gravitational influence on asteroid properties and collaborative observations with ground and space assets, including NASA’s Apophis Explorer, ESA’s RAMSES, and JAXA’s DESTINY+. These encounters highlight growing public interest in asteroid hazards and scientific opportunities that will be amplified by next generation asteroid surveys. This session invites abstracts focused on NEA observations, modeling of dynamical or physical evolution, mission concepts, and planetary defense applications. We especially welcome interdisciplinary contributions that bridge science, engineering, and policy to address the evolving landscape of planetary defense in the context of increasing detection rates and upcoming close encounters.
Co-Sponsor(s):
  • SY - Science and Society
Index Terms:

4339 Disaster mitigation [NATURAL HAZARDS]
6035 Orbital and rotational dynamics [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6055 Surfaces [PLANETARY SCIENCES: COMETS AND SMALL BODIES]
6205 Asteroids [PLANETARY SCIENCES: SOLAR SYSTEM OBJECTS]
Primary Convener:  Ronald-Louis Ballouz, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
Conveners:  Edgard G. Rivera-Valentin, Applied Physics Laboratory Johns Hopkins, Laurel, United States, Dawn Graninger, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States and Andrew Rivkin, JHU/APL, Laurel, United States
 
Tidally-driven seismicity as a mechanism for Near-Earth Asteroid Surface Refreshing (1859314)
Ronald-Louis Ballouz1, Daniella N DellaGiustina2, Kevin John Walsh3, Veronica J Bray2, Angela G Marusiak2, Isaac Saedi-Marghmaleki2, Samuel Bailey2 and Bray, Veronica, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (2)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (3)Southwest Research Institute Boulder, Boulder, United States
 
OSIRIS Apophis Explorer STIRring Apophis - Applications to Planetary Defense. (Invited) (1866205)
Michael C Nolan1, Daniella N DellaGiustina1, Anjani Polit1, Dathon R Golish1, Edgard G. Rivera-Valentin2, Michael C. Moreau3, Beau Bierhaus4 and The OSIRIS-APEX Team, (1)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (2)Applied Physics Laboratory Johns Hopkins, Laurel, United States, (3)NASA Goddard Space Flight Center, Greenbelt, United States, (4)Lockheed Martin, Littleton, United States
 
The Estimated Brightness of a Potential Lunar Impact by 2024 YR4 (1867884)
Patrick King, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
 
TERP RAPTOR: A 12U CubeSat Flyby Mission to Asteroid Apophis (1886644)
Adrienne Rudolph1, Sean Philips1, Chinthan Prasad2, Kruti Bhingradiya1, Cameron Storey1, Brent Barbee1, Mary Bowden3, David Akin1, Lori M Feaga4, Jarred Young1, Paul A Bernhardt5 and Yunghsin Chen6, (1)University of Maryland College Park, Aerospace Engineering, College Park, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (3)University of Maryland College Park, Aerospace Engineering, College Park, MD, United States, (4)University of Maryland, College Park, MD, United States, (5)University of Alaska Fairbanks, Fairbanks, AK, United States, (6)US Naval Research Laboratory, Washington D.C, United States
 
Capturing a Near-Earth Asteroid for Research, Space Enterprise, and Planetary Defense (1894499)
Leonard Vance1, Erik Asphaug2 and Jekan Thangavelautham1, (1)University of Arizona, Aerospace and Mechanical Engineering, Tucson, United States, (2)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States
 
A simulation pipeline for modeling impact processed asteroids during an atmospheric airburst (1898186)
Sean Stokes1,2, Jason Pearl1, Veronika Korneyeva1, Kathryn Kumamoto1, J. Michael Owen1, Cody Raskin1 and Javid Bayandor2, (1)Lawrence Livermore National Laboratory, Livermore, United States, (2)CRASH Lab, University at Buffalo - The State University of New York, Department of Mechanical and Aerospace Engineering, Buffalo, United States
 
Analyzing Potential Science Return of Both Lunar Collision and Flyby for 2024 YR4 Close Approach in 2032 (1912794)
Paula do Vale Pereira1, T'ana Joseph2, Ossyris Bury3 and Micah Boudreau3, (1)University of Central Florida, Orlando, FL, United States, (2)University of Maryland Baltimore County, Baltimore, United States, (3)University of Central Florida, Orlando, United States
 
An OSIRIS-APEX extended mission to 2024 YR4 (1928301)
Michael C Nolan1, Daniella N DellaGiustina1, Anjani Polit1, Alec Mudek2, Kenneth M Getzandanner2, Scott D. Guzewich2, Michael C. Moreau2 and Amy Simon2, (1)University of Arizona, Lunar and Planetary Laboratory, Tucson, United States, (2)NASA Goddard Space Flight Center, Greenbelt, United States
 
Janus Apophis Pathfinder: Demonstrating Rapid Response and an Innovative Mission Model for Early Planetary Defense and Scientific Characterization of (99942) Apophis (1929776)
Prof. James F Bell III, PhD1, Daniel Jay Scheeres2, Beau Bierhaus3, Laura Champion4, Melissa Six4, David Thomas5 and Lon Levin6, (1)Arizona State University, Tempe, AZ, United States, (2)University of Colorado Boulder, Ann and H.J. Smead Department of Aerospace Engineering Sciences, Boulder, CO, United States, (3)Lockheed Martin, Littleton, United States, (4)Lockheed Martin Corporation, Littleton, United States, (5)Arizona State University, Tempe, United States, (6)Sky Seven Ventures, New York, United States
 
JWST as a Planetary Defense Asset: The Case of 2024 YR4 (1957746)
Andrew Rivkin1, Eric MacLennan2, Bryan Holler3, Thomas Müller4, Julien de Wit5, Artem Burdanov5, Maxime Devogele6, Petr Pravec7, Marco Micheli6, Cristina Thomas8, Davide Farnocchia9, Allison K Glantzberg10, Luca Conversi11, Jessie Dotson12, Lorien Wheeler13, Stefanie N Milam14 and Heidi B Hammel15, (1)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (2)University of Helsinki, Helsinki, Finland, (3)Space Telescope Science Institute, Baltimore, United States, (4)Max Planck Insitute for Extraterrestrial Physics, Garching, Germany, (5)Massachusetts Institute of Technology, Cambridge, United States, (6)ESA NEOCC, Frascati, Italy, (7)Astronomical Institute, Academy of Sciences of the Czech Republic, Ondrejov, Czech Republic, (8)Northern Arizona University, Astronomy and Planetary Science, Flagstaff, United States, (9)NASA Jet Propulsion Laboratory, Pasadena, United States, (10)Applied Physics Laboratory Johns Hopkins, Laurel, United States, (11)NEOCC, Frascati, Italy, (12)NASA Ames Research Center, Moffett Field, United States, (13)NASA Ames Research Center, Moffett Field, CA, United States, (14)NASA Goddard Space Flight Center, Astrochemistry Laboratory, Greenbelt, United States, (15)Association of Universities for Research in Astronomy, Washington D.C., United States
 
A Space Traffic Management (STM) Approach for the (99942) Apophis 2029 Earth flyby. (1968078)
Eliud Bonilla, Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States
 
A New Method to Determine Mutual Orbit Parameters and Density of Near-Earth Binary Asteroids (1971755)
Aaron Deleon1, Christopher Magri2, Sean Marshall3, Tracy M Becker4 and Flaviane Venditti3, (1)University of Texas at San Antonio, San Antonio, TX, United States, (2)University of Maine at Farmington, Farmington, United States, (3)Florida Space Institute, Orlando, United States, (4)Southwest Research Institute, San Antonio, United States
 
Turning Rocks into Rockets: Using In-Situ Reaction Mass to Redirect Asteroids (1978275)
Demyan Lantukh1, Aaron Applegate2 and Vyacheslav Lebedev1, (1)AstroForge, Seal Beach, United States, (2)University of Alabama in Huntsville, Huntsville, United States
 
Reconnaissance and Mitigation Mission Options for Asteroid 2024 YR4 (1989754)
Brent Barbee1, Justin Atchison2, Rylie Bull2, Wendy K Caldwell3, Paul W Chodas4, Davide Farnocchia5, Dawn Graninger6, Megan Harwell7, Patrick King8, Joshua R Lyzhoft1, Ron Mink9, Catherine S Plesko10 and Adrienne Rudolph9, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)Johns Hopkins University Applied Physics Laboratory, Laurel, United States, (3)Los Alamos National Laboratory, X-Computational Physics Division, Los Alamos, NM, United States, (4)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States, (5)NASA Jet Propulsion Laboratory, Pasadena, United States, (6)Johns Hopkins University Applied Physics Laboratory, Laurel, MD, United States, (7)Los Alamos National Laboratory, Los Alamos, United States, (8)University of Virginia Main Campus, Charlottesville, VA, United States, (9)NASA Goddard Space Flight Center, Greenbelt, United States, (10)Los Alamos National Laboratory, Los Alamos, NM, United States
 
The radio science experiment of the ESA RAMSES proposed mission to the asteroid 99942 Apophis (1992404)
Marco Zannoni1,2, Riccardo Lasagni Manghi1, Edoardo Gramigna1, Federico Scalera1, Sébastien Le Maistre3 and Paolo Tortora1,2, (1)University of Bologna, Department of Industrial Engineering, Forlì, Italy, (2)University of Bologna, Centro Interdipartimentale di Ricerca Industriale Aerospaziale, Forlì, Italy, (3)Royal Observatory of Belgium, Brussels, Belgium
 
Investigating Hypothetical Mitigation of Asteroid 2024 YR4 via Intentional Robust Disruption (2000515)
Brin Bailey1, Alexander N. Cohen2, Sasha Egan3, Philip Lubin4, Ruitao Xu4, Mark Boslough5, Darrel Robertson6 and Elizabeth A. Silber7, (1)University of California Santa Barbara, Santa Barbara, United States, (2)UCSB, Santa Barbara, United States, (3)New Mexico Institute of Mining and Technology, Energetic Materials Research and Testing Center, Socorro, United States, (4)University of California Santa Barbara, Physics, Santa Barbara, United States, (5)University of New Mexico, Albuquerque, NM, United States, (6)NASA Ames Research Center, Moffett Field, United States, (7)Sandia National Laboratories, Geophysical Detection Programs, Albuquerque, United States
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