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2013 Flagstaff

2013 IAA PDC Flagstaff

3rd IAA Planetary Defense Conference

Protecting our planet from impacts by asteroids and comets

Conference videos available at

2013 Conference abstracts, papers and presentations are available below

2013 Conference report is available

2013 Post Exercise report is available


High Country Conference Center, Flagstaff AZ, USA

The International Academy of Astronautics hold its third conference “Gathering for Impact!” from 15-19 April, 2013 in Flagstaff, Arizona, USA. 

  • Planetary Defense
  • Recent Progress & Plans 
  • NEO Discovery
  • NEO Characterization
  • Mitigation Techniques & Missions
  • Impact Effects that Inform Warning, Mitigation & Costs
  • Consequence Management & Education

The conference included an exercise where participants simulated the decision-making process for developing deflection and civil defense responses to a hypothetical asteroid threat.


Official Media Sponsor           



Print pdf version of the  program as of April 14, 2013

Planetary Defense Conference  program:

Sunday, April 14, 2013

Special  Session: Chelyabinsk Event                                          
Chair: David Morrison

First Scientific Session on the Chelyabinsk Bolide:
A special session on the Chelyabinsk event of February 15 will be held at the beginning of the Planetary Defense Conference in Flagstaff, AZ, April 14-19. In view of wide public and press interest in this unique meteor strike, this special session is open to the public as well as those registered at the Conference. It will be the first scientific analysis of what happened on February 15, and the implications for planetary defense generally. Organizers of the session are David Morrison, Mark Boslough, Clark Chapman, and Alan Harris. The program is held at the High Country Conference Center in Flagstaff.

1700             Conference Registration at Conference Center
1900             Special Session: Preliminary Look at the Chelyabinsk Event
1900             Opening Remarks, David Morrison, Session Chair

IAA-PDC13-10-01    A Geologic and Meteoritic Perspective of Impact Airbursts and
1910    Insights into the Chelyabinsk Event
    David Kring (Lunar and Planetary Institute)

IAA-PDC13-10-02    The Chelyabinsk Airburst: A Preliminary Overview of Observations
1935            Peter Brown (Western Ontario University)

IAA-PDC13-10-03    The Trajectory and Orbit of the Chelyabinsk Impactor
2005            Paul Chodas (JPL) & Steven Chesley (JPL)

IAA-PDC13-10-04    Computational Simulations of Chelyabinsk and Tunguska Airbursts
2025            Mark Boslough

IAA-PDC13-10-05     A Two-Week Field Study of the Chelyabinsk Impact
2050            Peter Jenniskens (SETI Institute), Olga P. Popova (IDG RAS), Vadislav
V. Emel'yanenko & Anna Kartashova (Inst. of Astronomy RAS), Evgeny Biryukov
(South Ural State Univ. Chelyabinsk), Sergey Khaibrakhmanov & Alexandr Dudorov
(Chelyabinsk State University), & Dmitriy Glazachev (IDG RAS)

2110            Panel Discussion and Audience Q&A
                     Alan Harris, Chair

Day 1 Monday, April 15, 2013

0700       Breakfast
0700       Registration
0810       Morning speakers upload and check presentations
0900      Welcoming Remarks and Technical Comments, Bill Ailor
0910      Welcoming Remarks and Technical Comments, Richard Tremayne-Smith
0920      Welcome address, William Grabe, NAU Vice-President for Research
0930      IAA and Planetary Defense, Jean-Michel Contant, IAA Secretary General
0940      Concluding Remarks and Logistic Instructions, David Trilling
0945      Break

Monday, April 15, 2013, 1000-1200
Session 1: Background                                                         
Session Chair: Paul Miller

IAA-PDC13-01-01    Historical Perspectives on Planetary Defense
(abst.) (pres.)
1000            David Morrison

IAA-PDC13-01-02    United Nations recommendations for an international response to the NEO impact
1020        Threat
                    Sergio Camacho

IAA-PDC13-01-03    The NEO Precursor Services of ESA's Space Situational Awareness Programme
(abst.) (pres.)
1040            Detlef Koschny

IAA-PDC13-01-04    On The National Program of Counteraction Space Threats
(abst.) (pres.)
1100            Boris Shustov

IAA-PDC13-01-05    NASA's Near Earth Object Program and Activities
1120            Lindley Johnson

IAA-PDC13-01-06    Neoshield:  Progress Towards an International NEO Mitigation Program
(abst.) (pres.)
1140            Alan Harris (DLR)

1245            Afternoon speakers upload and check presentations    

Monday, April 15, 2013, 1315-1515
Session 2: Discovering NEOs - The State of the Art                  
Session Chairs: Robert Jedicke and Alan Fitzsimmons

IAA-PDC13-02-01    Source Regions for Near Earth Objects
1315            Mikael Granvik

IAA-PDC13-02-02    Near-Earth Object Survey Summary - The Minor Planet Center Perspective
(abst.) (pres.)
1330            Timothy Spahr

IAA-PDC13-02-03    The NEO Surveys
(abst.) (pres.)
1350            Don Yeomans

IAA-PDC13-02-04    Existing and Expected Near-Earth Object Follow-up Capabilities
(abst.) (pres.)
1410            Eileen Ryan

IAA-PDC13-02-05    Asteroid Terrestrial-impact Last Alert System – ATLAS
(abst.) (pres.)
1430            John Tonry

IAA-PDC13-02-06    NEOCAM: The Near-Earth Object CAMera
(abst.) (pres.)
1445            Amy Mainzer

IAA-PDC13-02-07    The Sentinel Space Telescope – Overview and Status
(abst.) (pres.)
1500            Ed Lu

1515            Break

Monday, April 15, 2013, 1545-1820
Session 3: NEO Physical Characterization                                
Session Chairs: Alan Harris (DLR) and Line Drube

IAA-PDC13-03-01    Looking into asteroid interiors by astronomical observations
1545            David Polishook

IAA-PDC13-03-02    Ground-based Optical Observations of NEO Fly-bys
1610            Nicholas Moskovitz

IAA-PDC13-03-03    What do we know about asteroid interiors? What matters for mitigation?
1630            Keith Holsapple

IAA-PDC13-03-04    The Strength of Small Rubble Pile Asteroids
1655            Dan Scheeres

IAA-PDC13-03-05    The YORP Effect on Rubble Piles: How Centrifugal Reshaping of Small Aggregates Kills the YORP Cycle
1715            Tom Statler
IAA-PDC13-03-06    Relevance of Asteroid Shape and Rotational Properties to Impact
1735            Mitigation Strategies
                    Ivan Debono

IAA-PDC13-03-07    Nuclear Deflection of PHOs as function of burst height, yield, and composition
1755            Catherine Plesko

1820            End Day 1    
1830            Welcome reception

Day 2  Tuesday, April 16, 2013

0700            Breakfast
0800            Registration
0810            Morning speakers upload and check presentations

Tuesday, April 16, 2013, 0830-1820
Session 3: Continued (NEO Physical Characterization)      
Session Chairs: Alan Harris (DLR) and Line Drube

IAA-PDC13-03-08    Physical Properties of Near-Earth Objects From Radar Observations
0830            Lance Benner

IAA-PDC13-03-09    Explore NEOs: The Warm Spitzer Near Earth Object Characterization Survey
0855            David Trilling

IAA-PDC13-03-10    Orbital and Absolute Magnitude Distribution of Hazardous Objects
0915            Vacheslav Emel’yanenko

IAA-PDC13-03-11    2011 AG5
(abst.) (pres.)
0935            Paul Chodas

1000            Break

Tuesday, April 16, 2013, 1030-1230
Session 4: Mitigation Techniques & Missions                          
Session Chairs: Bong Wie, Ian Carnelli, Mariella Graziano, Brent Barbee

IAA-PDC13-04-01    The ISIS Mission Concept: an Impactor for Surface and Interior Science
(abst.) (pres.)
1030            Steve Chesley

IAA-PDC13-04-02    Closed Loop Terminal Guidance Navigation for a Kinetic Impactor Spacecraft
(abst.) (pres.)
1050            Shyam Bhaskaran

IAA-PDC13-04-03    Numerical Study of the Asteroid Deflection Efficiency of the Kinetic Impactor
(abst.) (pres.)
1110            Approach in the NEOShield Project
                     Martin Jutzi

IAA-PDC13-04-04    Momentum transfer via direct impact: Experimental measurements
(abst.) (pres.)
1130            Kevin Housen

IAA-PDC13-04-05    Overview of Collisional-Threat Mitigation Activities at Lawrence Livermore
(abst.) (pres.)
1150            National Laboratory
                    Paul Miller

IAA-PDC13-04-06    GPU Accelerated 3-D Modeling and Simulation of a Blended Kinetic Impact
(abst.) (pres.)
1210            and Nuclear Subsurface Explosion
                     Brian Kaplinger

1230            Lunch        Jim Green or John Grunsfeld, NASA

1345            Afternoon speakers upload and check presentations

IAA-PDC13-04-07    Conceptual Design of a Flight Validation Mission for a Hypervelocity Asteroid
(abst.) (pres.)
1400            Intercept Vehicle
                     Brent Barbee

IAA-PDC13-04-08    Target selection and Mission Design Tradeoffs for a HAIV (Hypervelocity Asteroid
(abst.) (pres.)
1420            Intercept Vehicle) Flight Validation Mission
                     Sam Wagner

IAA-PDC13-04-09    Mission Opportunities for the Flight Validation of the Kinetic Impactor Concept
(abst.) (pres.)
1440            for Asteroid Deflection
                     Sonia Hernandez

IAA-PDC13-04-10    AIDA: Asteroid Impact & Deflection Assessment
(abst.) (pres.)
1500            Andy Cheng

IAA-PDC13-04-11    BEAST: Low-Cost Demonstration Mission for Binary Asteroid Orbit Modification
(abst.) (pres.)
1520            Jesus Gil-Fernandez

1540            Break

IAA-PDC13-04-12    Human Expeditions to Near-Earth Asteroids: Implications for Exploration, Resource Utilization, Science, and Planetary Defence
(abst.) (pres.)
 1610                    Paul Abell

IAA-PDC13-04-13    The Near-Earth Object Human Space Flight Accessible Targets Study:  an ongoing effort to identify Near-Earth Asteroid Destinations for Human Explorers
 (abst.) (pres.)
1630                    Brent Barbee

IAA-PDC13-04-14    Asteroid Retrieval Mission Concept - Trailblazing Our Future in Space and Helping  to Protect Us From Earth Impactors
(abst.) (pres.)
                     Daniel Mazanek

IAA-PDC13-04-15    OSIRIS-REx Techniques Applied to Earth-Crossing Object Deflection
(abst.) (pres.)
1710            Ron Mink

IAA-PDC13-04-16    Trajectory and Mission Design for the Origins Spectral Interpretation Resource Identification Security Regolith Explorer (OSIRIS-REx) Asteroid Sample Return Mission
(abst.) (pres.)
1730              Mark Beckman

IAA-PDC13-04-17    MARCOPOLO-R: ESA Sample Return Mission to 2008 EV5 (A Potentially Hazardous Asteroid)
(abst.) (pres.)
1750               Antonella Barucci

1810            End day 2    

Day 3  Wednesday, April 17, 2013

0810            Speakers upload and check presentations

Wednesday, April 17, 0830-1250
Session 4: Continued (Mitigation Techniques & Missions)              
Session Chairs: Bong Wie, Ian Carnelli, Mariella Graziano, Brent Barbee

IAA-PDC13-04-18    Performance and Derived Requirements of a Gravity Tractor Serving as a
0830            Precursor to a Kinetic Impactor within the NEOSHIELD Study Framework    
                    Julie Bellerose

IAA-PDC13-04-19    Development of an Asteroid Mission Design Software Tool for Planetary Defense
0850            George Vardaxis

IAA-PDC13-04-20    APOPHIS Express, a unique opportunity for a human visit to a NEO in 2029
0910            Jean-Yves Prado

IAA-PDC13-04-21    Experimental Characterization of the Thrust Induced By Laser Ablation on an Asteroid
0930            Alison Gibbings

IAA-PDC13-04-22    Light-Touch2: A Laser-Based Solution for the Deflection, Manipulation and
0950            Exploitation of Small Asteroids
                     Maximiliano Vasile

IAA-PDC13-04-23    Preliminary Development and Validation of Optical Navigation and Guidance Laws
1010            for Intercepting a Small Target Asteroid
                    Matt Hawkins

1030            Break

IAA-PDC13-04-24    Uncertainty Quantification in Impulsive Deflection Scenarios
(abst.) (pres.)
1100            Joe Wasem

IAA-PDC13-04-25    Lower Limits on NEO Deflection Velocities from Vapor and Blow-Off Momentum
1120            Kirsten Howley

IAA-PDC13-04-26    Hazardous Near-Earth Asteroid Mitigation Campaign Planning Based on Uncertain
(abst.) (pres.)
1140             Information on Fundamental Asteroid Characteristics
                    Yohei Sugimoto

IAA-PDC13-04-27    Catching a Rolling Stone: Dynamics and Control of a Spacecraft and an Asteroid
(abst.) (pres.)
1200            Carlos Roithmayr

IAA-PDC13-04-28    Optical Navigation and Fuel-Efficient Orbit Control Around an Irregular-Shaped Asteroid
1220            Tim Winkler

1240            Close of Session 4

All Day:  Tours
    Meteor Crater    

Evening:  Public Event

1900    Cline Library auditorium on the campus of Northern Arizona University

Bill Nye the Science Guy, Planetary Society CEO, internationally known speaker, comedian, author, scientist, and media personality will give a presentation guaranteed to please people of all ages as he talks about the importance of protecting the planet from dangerous asteroids.

Geoff Notkin and Steve Arnold, the  Science Channel's Meteorite Men, who travel all over the world, and with all kinds of gear to recovery meteorites. They will tell stories of their expeditions and what we learn about the Universe from the meteorites they recover.

The public session will be hosted by The Planetary Society's Planetary Radio Live, with plans to post the entire session online, including questions from the audience, and to air excerpts on Planetary Radio.  The evening session is free to all and is sponsored by NASA and The Planetary Society.

Day 4 Thursday, April 18, 2013                                                                                                         

0700            Breakfast
0800            Registration
0810            Morning speakers upload and check presentations

Session 5: Impact Effects that inform Warning, Mitigation, & Costs  
Thursday, April 18, 0830-1230
Session Chairs: Mark Boslough, Alan Harris (US), Clark Chapman

IAA-PDC13-05-01    Aerial and Surface Effects of Cosmic Airbursts: Recent Events and
(abst.) (pres.)
0830            Geological Archives
                    Marie-Agnes  Courty

IAA-PDC13-05-02    High Velocity Impact Generated Air Blast
(abst.) (pres.)
0845            Charles Needham

IAA-PDC13-05-03    The NEA Impact that Created Meteor Crater, Arizona
(abst.) (pres.)
0900            David Kring

IAA-PDC13-05-04    Tsunami from Plume-Forming Collisional Airbursts
(abst.) (pres.)
0925            Mark Boslough

IAA-PDC13-05-05    Atmospheric and Water-Surface effects of small Impacts
0940            Galen Gisler

IAA-PDC13-05-06    Assessment of Threat of Small Impacts
1005            Vladimir Svetsov

1020            Break

IAA-PDC13-05-07    Calculating damage from asteroid impacts
(abst.) (pres.)
1050            H. Jay Melosh

IAA-PDC13-05-08    Flux of Impacts in Jupiter: From super bolides to large-scale meteorites
(abst.) (pres.)
1115            R. Hueso

IAA-PDC13-05-09    The value of enhanced NEO surveys
(abst.) (pres.)
1130            Alan Harris (USA)

IAA-PDC13-05-10    Infrastructure Consequence Analysis of Destructive Events
(abst.) (pres.)
1145            Barbara Jennings

IAA-PDC13-05-11    NEO Disaster Response and Recovery in the Context of Other Natural Hazards
(abst.) (pres.)
1210            Clark R. Chapman

1230            Lunch        Robert J. Fenton, Jr., FEMA

1345            Afternoon speakers upload and check presentations

Session 6: Consequence Management & Education                            Thursday, April 18, 1400-1640
Session Chairs: Victoria Friedensen, Dave Baiocchi, A.C. Charania, Nahum Melamed, Ray Williamson

IAA-PDC13-06-01    A Communications Plan for an International Response to a Threatening NEO
(abst.) (pres.)
1400            Leonard David

IAA-PDC13-06-02    How Scientists And Prophets Have To Collaborate To Face A NEO Threat
(abst.) (pres.)
1420            Jacques Arnould

IAA-PDC13-06-03    Assessing the Full Spectrum of Communication Needs for Potentially Hazardous NEOs
(abst.) (pres.)
1440            Margaret Race

IAA-PDC13-06-04    Do’s and Don’ts of Communicating Effectively about NEO Hazards
(abst.) (pres.)
1500            Linda Billings

IAA-PDC13-06-05    A Decision Analysis Approach For Risk Management Of Near Earth Objects
(abst.) (pres.)
1520            Robert Lee

IAA-PDC13-06-06    Organizational vulnerability of a crisis organization in the context of an asteroid impact: methodology and tools to identify its weak points and promote its resilience
1540                               Emmanuel Garbolino

IAA-PDC13-06-07    Possible Roles for the U.S. Geological Survey in Impact Hazard Analysis and Response
(abst.) (pres.)
1600            Lazio Kestay

IAA-PDC13-06-08    IGMASS – Planetary Market of Knowledge Without Linguistic, National or Cultural Borders
1620            Efim Malitikov

1640            Break

Introduction to Session 7                            Thursday, April 18, 1710-1800
Session Chairs: Debbie Lewis, LtCol. Peter Garretson, L.A. Lewis

1710            Scenario Briefing        Don Yeomans
1730            First injects                  Debbie Lewis
1800            End of day 4    

Day 4 evening:     Conference Banquet with a few words from a special guest: Carolyn Shoemaker

1900            Cocktail
1930            Banquet

Day 5 Friday, April 19, 2013

0700            Breakfast
0800            Registration
0825            Welcoming Remarks        Bill Ailor

Session 7: Mitigation Response and Disaster Management Exercise
Friday, April 18, 0830-1230
Session Chairs: Debbie Lewis, LtCol. Peter Garretson, L.A. Lewis

0830            Start of exercise        Debbie Lewis

1030            Group Reports        All

1130            Exercise Debrief        Debbie Lewis

1230            Lunch

Session 8: Panel Session & Discussion: Preparing the White Paper
Friday, April 18, 1345-1530
Moderator: William Ailor and Session Chairs representing each Session

1345            Summary from Session Chairs & Discussion        Bill Ailor

1500            Final Remarks – Conclusions & announcement of 2015 venue

1530            End of Conference    


Poster Session

IAA-PDC13-01-01P    Neodys: Recent Past, Present And Future Of Impact Monitoring Activities
            F. Bernardi, F.  Spoto, D. Farnocchia and A. Milani

IAA-PDC13-01-02P    A New Business Plan For Planetary Defense
            M. Boslough

IAA-PDC13-02-01P    A Sensitive Search for NEOs with the Dark Energy Camera
            L. Allen, D. Trilling, T. Axelrod, C. Fuentes, D. James, F. Valdes, B. Burt, A. Earle,
D. Herrera, S. Larson, E. Christensen, A. Gibbs, M. Trueblood, M. Brown

IAA-PDC13-02-02P    The Shoemaker NEO Grant Program A Resource For Observers
    B. Betts

IAA-PDC13-02-03P    The Dark Energy Camera Near Earth Asteroid survey: Simulations and object linking
    B. Burt, A. Earle, C. Fuentes, D. Trilling, L. Allen

IAA-PDC13-02-04P    Status of the Catalina Sky Survey
    E. Christensen, S. Larson, A. Boattini , A. Gibbs, A. Grauer, R. Hill, J. Johnson, R. Kowalski, R. McNaught, F. Shelly

IAA-PDC13-02-05P    Inventorying The Number Of Potential Impactors In The Inner Solar System In The Diameter Range 10m To 100m With Interplanetary Spacecraft
    G.L. Delzanno, H.R. Lai, C.T. Russell

IAA-PDC13-02-06P    Optimizing A Wide Survey For Neos
    G. Drolshagen, D. Koschny, T. Albin, L. Cibin, M. Chiarini

IAA-PDC13-02-07P    Searching for the most dangerous near Earth asteroids in archival STEREO data
    C. Fuentes, D. Trilling, M. Knight

IAA-PDC13-02-08P    The NEOWISE Survey of the Near-Earth Asteroids
    T. Grav, A. Mainzer, J. Bauer, R. Cutri, J. Masiero

IAA-PDC13-02-09P    Population Of NEAs And Survey Completion
    A.W. Harris

IAA-PDC13-02-10P    The Astrometry Algorithm Used At The Klet Observatory
    M. Honkova, M. Tichy, J. Ticha, M. Kocer

IAA-PDC13-02-11P    Detecting sub-kilometer NEOs with ATLAS & PS2
    R. Jedicke, E. Schunova, P. Veres, L. Denneau, R.J. Wainscoat, J. Tonry

IAA-PDC13-02-12P    Discovery of Human Exploration Candidates with Sentinel
    R. Linfield, H. Reitsema, Ed Lu, M. Buie

IAA-PDC13-02-13P    Potentially Hazardous Long-Period Comets:  Warning Times
    L. Phelps, D.C. Boice

IAA-PDC13-02-14P    Lincoln Near Earth Asteroid Research Program: 2013 and Beyond
    R. Y. Shah, D. Woods, E. Pearce, J. Scott Stuart, G. Stokes

IAA-PDC13-02-15P    A Concept of Cost-Saving Space System Designed For The Detection of NEO’s
    A. Shugarov, B. Shustov, M. Martynov, V. Kudryashov

IAA-PDC13-02-16P    Resonant Returns and Possible Collisions of Asteroids with the Earth
            L.L. Sokolov, T.P. Borisova, N.A. Petrov, A.A. Vasiliev

IAA-PDC13-02-17P    Study Of Celestial Bodies Motion Presenting Impact Risk With The Earth
            I. Stroe, MI. Piso, A. Craifaleanu

IAA-PDC13-02-18P    The Gaia ground-based follow-up network Gaia-FUN-SSO
            W. Thuillot, D. Bancelin, P. Tanga, J. Hestroffer, D. Berthier, B. Carry, P. David,
P. Rocher, and the Gaia-FUN-SSO team

IAA-PDC13-02-19P    Inaccuracies Affecting The Calculation Of Orbital Elements
    M. Tichy, M. Honkova, J. Ticha(1), M. Kocer

IAA-PDC13-02-20P    The pilot Warm Spitzer Near Earth Object Discovery Survey: Probing the size
    D. Trilling, M. Delbo, J. Emery, G. Fazio, C. Fuentes, A. Harris, J. Hora,
M. Mommert, M. Mueller, H. Smith

IAA-PDC13-02-20P    A Space Mission To Detect Imminent Earth Impactors
    G.B. Valsecchi, E. Perozzi, A. Rossi

IAA-PDC13-02-21P    Automatic Detection of Asteroids and Meteoroids – Wide Field Survey
    P. Vereš, J. Tóth, R. Jedicke, J. Tonry, L. Denneau, R. Wainscoat, L. Kornoš, J. Šilha

IAA-PDC13-02-22P    The Pan-STARRS1 search for Near-Earth Asteroids — present status and future plans
    R. Wainscoat, L. Denneau, R. Jedicke, P. Veres, B. Bolin

IAA-PDC13-02-23P    Prospects for detection of Potentially Hazardous Asteroids in the sweet spots
    R. Wainscoat, L. Denneau, R. Jedicke, P. Veres, B. Bolin

IAA-PDC13-02-24P    A Large Optical Arecibo for NEO Discovery
    D. Steel, H. Steel

IAA-PDC13-02-25P    Triangulation of Near Earth Objects by Earth Based Observers
    S. Eggl

IAA-PDC13-02-26P    Spacewatch Followup Observations of Hazardous Near-Earth Objects
    R. S. McMillan, T. H. Bressi, J. V. Scotti, J. A. Larsen, M. L. Perry

IAA-PDC13-02-27P    NEO Monitoring Using the World's Largest Schmidt-Camera
    B. Stecklum

IAA-PDC13-02-28P    Offers on Creation of the International Planetary Defence System “Citadel”
    V.V. Adushkin

IAA-PDC13-02-29P     Charming Asteroids & Comets
    D. Scheld

IAA-PDC13-02-30P    Basic Asteroid Explorer (BAsE)
    W. Wittholt

IAA-PDC13-03-01P    The Need For NEO Close Mapping and Characterization
    B. Archinal, R. Kirk, K. Edmundson, M. Rosiek, L. Gaddis, A. Nefian, T. Fong,
R. Beyer, J. Bellerose

IAA-PDC13-03-02P    Framework to Assess the Micrometeoroid Flux Increase Due to Nuclear Surface Asteroid Deflection and the Threat Posed to Space Assets
    E. Aretskin-Hariton, K. Abercromby

IAA-PDC13-03-03P    Low Cost Characterization of Seismic Attenuation in Potentially Hazardous Asteroids
    E. Asphaug

IAA-PDC13-03-04P    Orbit Propagation of Asteroid (99942) Apophis From Recent Observations
    D. Bancelin, D. Hestroffer, W. Thuillot

IAA-PDC13-03-05P    Short Term Impact Risk Assessment for Asteroid 2011 Ag5
    D. Bancelin, P. Pravec, M. Nolan

IAA-PDC13-03-06P    Dynamical evolution and physical properties of six NEAs
    M. Birlan, A. Nedelcu, M. Popescu

IAA-PDC13-03-07P    Hazard Assessment for 101955 (1999 Rq36), the OSIRIS-REx Mission Target
    S.R. Chesley, D. Farnocchia, P.W. Chodas, D. Vokrouhlicky, F. Spoto, A. Milani,
G.B. Valsecchi

IAA-PDC13-03-08P    NEOshield - The Physical Properties of the Most Frequent Impactors
    L. Drube, A. W. Harris, A. Barucci, M. Fulchignoni, D. Perna

IAA-PDC13-03-09P    Scaling Near Earth Asteroid Characterization Rates
    M. Elvis, C. Beeson, JL. Galache

IAA-PDC13-03-10P    Yarkovsky Driven Impact Predictions: Apophis And 1950 DA
    D. Farnocchia, S. R. Chesley, P. W. Chodas, A. Milani

IAA-PDC13-03-11P    Choosing NEO Mission Targets Current Knowledge and Future Earth-Based Observation Opportunities
    A. Fitzsimmons, A. W. Harris, S. Eggl, D. Perna

IAA-PDC13-03-12P    Tangential Yorp Effect
    O. Golubov, Y. N. Krugly

IAA-PDC13-03-13P    Physical Properties of Meteoroids According to Middle and Upper Atmosphere Radar Measurements
    M. Gritsevich, J. Kero, J. Virtanen, C. Szasz, T. Nakamura, J. Peltoniemi, D. Koschny

IAA-PDC13-03-14P    The Physical Nature of Small Earth-Approaching Asteroids
    W. K. Hartmann, O. Popova

IAA-PDC13-03-15P    Apophis 2029 Mission, CNES Engineering Study
    E. Hinglais, L. Lopes, JY. Prado, Apophis Mission Science group, CNES team

IAA-PDC13-03-16P    The Role of Radar Astronomy in Assessing and Mitigating the Asteroid Impact Hazard
    JL. Margot

IAA-PDC13-03-17P    Assessments of blast deflection of asteroids
    S.A. Meshcheryakov, Yu. M. Lipnitsky

IAA-PDC13-03-18P    Constraints on Densities of Small Neos from Radiation Pressure Detections
    M. Micheli, D. J. Tholen, G. T. Elliott

IAA-PDC13-03-19P    A new program to determine asteroid thermal properties
    C. R. Nugent, A. Mainzer, J. Masiero, T. Grav, J. Bauer

IAA-PDC13-03-20P    Distribution Of Spin-Axis Longitudes For NEAs and MBAs
    D. Oszkiewicz, S. Breiter, T. Michałowski, E. Bowell, L. Wasserman, K. Muinonen,
A. Marciniak

IAA-PDC13-03-21P    The metric spaces and its applications for NEO Characterization
    Peng Zhang, Junfeng Li, Chen Yang, Hongwei Yang

IAA-PDC13-03-22P    Laboratory Spectrometry of Meteorite Samples at Visible to Near-Infrared Wavelengths
    H. Pentikäinen, A. Penttilä, K. Muinonen, T. Hakala, J. Peltoniemi, M. Gritsevich

IAA-PDC13-03-23P    Requirements For Mitigation Precursor Reconnaissance, A Study From The Neoshield Project
    D. Perna, MA. Barucci, D. Bancelin, M. Birlan, S. Eggl, S. Fornasier, M. Fulchignoni, D. Hestroffer, W. Thuillot, A. W. Harris, L. Drube

IAA-PDC13-03-24P    Physical Characterization Studies of Potentially Hazardous Near-Earth Objects
    E. V. Ryan, W. H. Ryan

IAA-PDC13-03-25P    Proper Elements, Asteroid Families, Resonances and the Origin of Near Earth Asteroids
    F. Spoto, A. Milani, Z. Knežević, A. Cellino, B. Novaković, F.Bernardi

IAA-PDC13-03-26P    Forthcoming GAIA Observations Of The Earth Dynamical Environment
    P. Tanga, D. Hestroffer, W. Thuillot, A. Dell’Oro, A. Ivantsov

IAA-PDC13-03-27P    The number of meter-sized near Earth asteroids as estimated from lunar crater data
    D. E. Trilling, N. Barlow, K. Ververelli

IAA-PDC13-03-28P    Keyhole Features
    G. B. Valsecchi, F. Bernardi, F. Spoto, A. Chessa

IAA-PDC13-03-29P    Recommendations for Modeling Fragments Distribution Based on Empirical Study of Meteorites
    V. Vinnikov, M. Gritsevich

IAA-PDC13-03-30P    Modeling Near-Earth-Object Surface Properties Using the Radar Scattering Parameters
    A. Virkki, K. Muinonen, A. Penttilä

IAA-PDC13-03-31P    Asteroid Lightcurve Phase-Shift from Photometric Surface Properties
    O. Wilkman, K. Muinonen

IAA-PDC13-03-32P    Keyhole-Distribution
    W. Wittholt

IAA-PDC13-04-01P    Effects of Collisons on the Granular Surfaces of Small Asteroids
    A. Campo Bagatin, R. A. Alemañ, P. G. Benavidez, D. C. Richardson

IAA-PDC13-04-02P    Ballasted Solar Sail Gravity Tractors For Neo Diversion
    J. A. Carroll

IAA-PDC13-04-03P    Using Small Asteroids to Deflect Larger Dangerous Asteroids
    N. Eismont, M. Boyarsky, A Ledkov, R Nazirov, D Dunham, E Chumachenko,
K. Fedyaev

IAA-PDC13-04-04P    Deflection Missions for Asteroid 2011 AG5
    D. Grebow, D. Landau, S. Bhaskaran, P. Chodas, S. Chesley, D. Yeomans,
A. Petropoulos, J. Sims

IAA-PDC13-04-05P    The Ends of Small – Practical Engineering Constraints in the Design of Planetary Defence Missions
    J.T. Grundmann, J. Biele, M. Drobczyk, C. Lange, S. Montenegro, F. Nohka,
JC. Schröder, M. Wrasmann

IAA-PDC13-04-06P    You’ve Got 2 Years, 6 Months, 1 Week and 48 Hours - The Ongoing Engineering Adventure of Mascot
    J.T. Grundmann, V. Baturkin, J. Biele, A. Bellion, E. Canalias, L. Celotti, F. Cordero, M. Deleuze, R. Findlay, S. Fredon, C. Grimm, J. Hendrikse, F. Herrmann, T.-M. Ho, E. Jurado, C. Krause, R. Kroth, E. Ksenik, S. Kuss, C. Lange, M. Lange, M. Maier, L. Melac, O. Mierheim, P. Neugebauer, T. Okada, S. Reershemius, J. Reill, B. Schäfer, H.-J. Sedlmayr, K. Stohlmann,  N. Termtanasombat, S. Ulamec, M. Wrasmann,
T. Yoshimitsu, C. Ziach, T.van Zoest

IAA-PDC13-04-07P    Head-on impact mission for deflecting Apophis by multiple gravity assists
    Hongwei Yang, Yang Chen, Peng Zhang, Hexi Baoyin, Junfeng Li

IAA-PDC13-04-08P    Expeditious Response to a Short Warning NEO Impact Threat
    N. Melamed, J.P. McVey, J.P. Mayberry

IAA-PDC13-04-09P    Asteroid Deflection via Yarkovsky Effect Reduction
    G. Misra

IAA-PDC13-04-10P    A Simulated Asteroid Regolith Test Bed For Designs Of Passive, Self-Righting Landers
    N. Movshovitz, E. Asphaug

IAA-PDC13-04-11P    Assessment Of Efficiency For Contactless Redirection Of Asteroids Dangerously Approaching Earth By Ion Beam
    V.M. Murashko, V.A. Obukhov, V.G. Petukhov, G.A. Popov

IAA-PDC13-04-12P    A Kinetic Impactor Demonstration Mission Design Within the Neoshield Project
    N. Saks, M. Chapuy, J.L. Cano, M. Hagenfeldt, S. Eckersley

IAA-PDC13-04-13P    Engineering Estimations of Burst Impact on Near-Earth Asteroids
    V.S. Sazonov

IAA-PDC13-04-14P    Deflection of Asteroids and Comets Considered as an Agglomeration of Boulders
    G. Tancredi, A. Maciel, S. Nesmachnow, D. Frascarelli

IAA-PDC13-04-15P    Design and Optimization of Asteroid Deflection Strategy Using Gravity Tractor
    Zunhui Zhao, Shuai Wang, Haibin Shang, Dong Qiao, Pingyuan Cui

IAA-PDC13-04-16P    Deflecting Hazardous Asteroids from Collision with the Earth by using Small Asteroids
  D. Dunham, N. Eismont, M. Boyarsky, A. Ledkov, R. Nazirov, E. Chumachenko,
K. Fedyaev

IAA-PDC13-04-17P    Deflection of a Big NEO through Impact with a Small One
  Yuncai Wang, Shengping Gong

IAA-PDC13-05-01P    NEO Risk Assessment of the Potential Impact on Air Traffic Congestion over Airport Areas
    S. Dascalu

IAA-PDC13-05-02P    A Mathematical Model for Asteroidal Impact Casualties
    C. Maccone

IAA-PDC13-05-03P    NEOPROP: a NEO Propagator for Space Situational Awareness
    V. Zuccarelli, D. Bancelin, S. Weikert, W. Thuillot, D. Hestroffer, C. Yabar Valles

IAA-PDC13-05-04P    Debris dispersion following an atmospheric impact: Lessons from Jupiter
   A. Sánchez-Lavega, R. Hueso, S. Pérez-Hoyos, E. García-Melendo

IAA-PDC13-06-01P    NEO Threat Mitigation Software Tools within the NEOShield Project
    J. L. Cano, G. Bellei, J. Martín

IAA-PDC13-06-02P    Preparing the International Community for Active Planetary Defense
    E. Dahlstrom

IAA-PDC13-06-03P    Effective Algorithm for Forest Damage Detection Using High-Altitude Photogrammetric Imagery
    E. Honkavaara, P. Litkey, K. Nurminen, M. Gritsevich

IAA-PDC13-06-04P    Point to point sub-orbital transportation as an alternative rapid response to convey supplies to isolated stricken area after massive disaster
    Huai-Chien Chang

IAA-PDC13-06-05P    Education through involvement - Projects of SGAC’s NEO Project Group
    A. Karl

IAA-PDC13-06-06P    The Need for Local Emergency Management Stakeholders in Near Earth Object
Consequence Management
J. L. Rozdilsky

IAA-PDC13-06-07P    Klet Observatory and Lessons Learnt From NEO Public Outreach and Education
        J. Ticha, M. Tichy, M. Kocer, M. Honkova

IAA-PDC13-06-08P    International Forecasting Service of Areas and Consequences of Falling of Dangerous Celestial Bodies
    VV. Adushkin, VR. Bolov, VA. Deryugin, AV. Zaitsev, MA. Kozlov, VI. Larionov, NA. Makhutov, VA. Puchkov, SA. Sukhanov, SP. Sushchev, AA. Taranov, VA. Shor

IAA-PDC13-06-09P    Near Echelon to Protect the Earth Against Hazardous Space Objects
    VG. Degtyar


Program Committee


  William Ailor                          The Aerospace Corporation

  Richard Tremayne-Smith      Oos


V. Adimurthy

 ISRO/Department of Space

Dave Baiocchi

 RAND Corporation

Brent Barbee

 NASA Goddard Space Flight Center

Edmund Beshore

 University of Arizona

Bruce Betts

 The Planetary Society

Mark Boslough

 Sandia National Laboratory

Juan‐Luis Cano

 Deimos Space

Ian Carnelli

 European Space Agency

Clark Chapman

 Southwest Research Institute

A.C. Charania

 SpaceWorks Commercial

Jean‐Michel Contant

 International Academy of Astronautics

Richard Crowther

Rutherford Appleton Laboratory

Alan Fitzsimmons

 Queen’s University, Belfast

Mariella Graziano


Pedro J. Gutiérrez

 Instituto de Astrofísica de Andalucía ‐ CSIC

Alan Harris

 German Space Agency (DLR)

Alan W. Harris

 Space Science Institute

Dario Izzo

 European Space Agency

Rob Jedicke

 University of Hawaii

Lindley Johnson

 NEO Observation Program Executive

Tom Jones

 Astronaut,  Member B612 Foundation

Alex Karl

 Space Generation Advisory Council

Michael Khan


Detlef Koschny

 European Space Agency

Debbie Lewis

 Creative Resilience Ltd.

Nahum Melamed

 The Aerospace Corporation

Patrick Michel

 Côte d'Azur Observatory

David Morrison

 NASA Lunar Science Institute

Marius Piso

 Romanian Space Agency

Dorin Prunariu

 Romanian Space Agency

Boris Shustov

 Institute of Astronomy,  Russian Academy of Sciences

Michael Simpson

 Secure World Foundation

David Trilling

 Northern Arizona University

Giovanni Valsecchi


Karel van der Hucht

 International Astronomical Union

Frans von der Dunk

 University of Nebraska‐Lincoln

Brian Weeden

 Secure World Foundation

Bong Wie

 Iowa State University

Don Yeomans

 Manager,  NASA Near Earth Object Program Scientist

Local Organizing Committee

David Trilling
Kirsten L. Slaughter-Rice


Call for Papers

The theme for the 2013 IAA Planetary Defense Conference the conference was “Gathering for Impact!”

Call for Papers (pdf print version)

Papers were solicited in the following areas:
Planetary Defense – Recent Progress & Plans 

  • Current national and international funded activities that support planetary defense
  •  Program status and plans (e.g., NASA’s NEO program, ESA’s SSA program)
  •  Current international agreements and coordination activities

NEO Discovery

  •   Discovery statistics and projections (ground-based & space-based)
  •  The status of next generation surveys (e.g., PanSTARRS and LSST)
  •   Advancements in utilizing archival and historical data   

NEO Characterization

  •   Lessons learned from recent discoveries and close approaches
  •   Orbital refinements including non-gravitational effects and keyholes
  •   Physical characterization that informs mitigation

Mitigation Techniques & Missions

  • Space technologies for asteroid deflection/disruption (e.g., new concepts, kinetic impactor GNC, astrodynamics, etc.)
  • Flight validation/demonstration missions for planetary defense technologies
  • Robotic and human NEO exploration mission planning and design (e.g., OSIRIS-REx, Hayabusa 2, etc.)

Impact Effects that Inform Warning, Mitigation & Costs

  • Information from the geological record and recent history
  • Consequences of ocean and land impacts
  • Economic costs of impacts

Consequence Management & Education

  • Policy or legal analysis that will affect or inform future mitigation plans
  • Educating the public and the media on NEO detection, impact effects, mitigation missions, impact warnings
  • Strategies for developing disaster response plans across international borders
  • Lessons learned from regional and international disasters (e.g.: Fukushima, Chernobyl, Hurricane Katrina) that provide insights for planetary defense

The conference included an exercise where participants simulated the decision-making process for developing deflection and civil defense responses to a hypothetical asteroid threat.

Participants developed a set of actionable recommendations that will help to improve our ability to successfully defend Earth from possible impacts and prepare for unexpected NEO-related disasters. 


Student Competition:

The aim of the student competition is to help promote academic work and informed political debate by enhancing research and general understanding essential for sound decision making on NEO impact threats in years to come.

Submit an Abstract:

Abstract submission is now closed.
(To submit an abstract, please pre-register first. After pre-registration you will access the abstract submittal form.)

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