7th IAA Planetary Defense Conference 2021

Vienna, Austria
IAA Planetary Defense Conference 202126-30 April 2021
Intro PDC 2021
7th IAA Planetary Defense Conference

Conference report is available here: Conference report

Final Program is available here: Final Program

On-line WebEx Conference

Hosted by the United Nations Office for Outer Space Affairs, in cooperation with the European Space Agency


In consideration of the prevailing circumstances, the PDC organizers have decided that the 2021 PDC will be conducted virtually.
Please note that participation will be limited to the maximum number of selected applicants as per capacity of the online platform.
Registration to the conference is now closed as the maximum number of participants has been reached.

PDC 2021

Final Program is available:

Final Program

The International Academy of Astronautics will hold its 7th conference  on April 26-30, 2021. The bi-annual conference brings together world experts to discuss the threat to Earth posed by asteroids and comets and actions that might be taken to deflect a threatening object.

  • Highlight/Spotlight topic areas
  • Key International and Policy Developments
  • Advancements in Near Earth Object (NEO) Discovery
  • New NEO Characterization Results
  • Deflection & Disruption Modeling and Testing
  • Mission & Campaign Design
  • Impact Management & Consequences
  • Disaster Management & Response
  • Public Education and Communication
  • The Decision to Act: Political, Legal, Social and Economic Aspects

Working language

The working language of the Conference will be English. All participants are required to have good English language skills.

Registration to the conference is now closed as the maximum number of participants has been reached.

The conference will include a hypothetical NEO/Earth impact event scenario that will be part of the conference (similar to what was done at the 2013, 2015, 2017 & 2019 conferences). Conference attendees may also use the hypothetical scenario as their topic for papers and presentations.

Although this scenario is realistic in many ways, it is completely fictional and does NOT describe an actual potential asteroid impact.

  • Pre-Registration
    1 Sept 2020
  • Abstract Submission Date
    1 Sept 2020 to 31 Jan 2021
  • Paper Submission Date
    16 April 2021

PDC 2021 Call for Papers  (pdf version leaflet)

Conference Agenda
Agenda is in Central European Summer Time (CEST | UTC+2)

This is the introduction for DAY 1: Highlights.

Session 1: Hera

  Monday, April 26, 2021
  12:00 PM - 1:00 PM


Dr. Patrick Michel
Director Of Research
Observatoire De La Côte D'azur, Cnrs

The ESA Hera mission: planetary defense and science return

Mr Michael Küppers
Esa/European Space Astronomy Centre

The measurement goals and payload of the Hera mission to Dimorphos

Mr Francesco Topputo
Politecnico Di Milano

Milani Cubesat

Mr. Ozgur Karatekin
Royal Observatory Of Belgium

Juventas CubeSat For the HERA Mission

Abstract Submission


Session Chair

Mariella Graziano
Executive Director
GMV Aerospace and Defence


Monica Lazzarin


Richard Moissl
ESA-PDO Mitigation Activities Coordinator

Session 2: Hayabusa2

  Monday, April 26, 2021
  1:15 PM - 5:30 PM


Mr. Yuichi Tsuda
Japan Aerospace Exploration Agency

Summary of Hayabusa2 Mission

Mr. Masahiko Arakawa
Kobe University

Artificial impact crater on Ryugu formed in the gravity dominated regime

Mr. Seiji Sugita
University Of Tokyo

Physical properties of Ryugu revealed by proximity observations with Hayabusa2 science instruments

Mr Tatsuaki Okada

Thermal Imaging to Reveal the Highly Porous Nature of C-type Asteroid Ryugu in Hayabusa2 Mission

Abstract Submission


M. Hirabayashi
Auburn University

Hayabusa2 Extended Mission to rendezvous with Asteroid 1998 KY26: Investigations of an extremely small fast rotator for planetary defense

Session Chair

Makoto Yoshikawa
Associate Professor
Japan Aerospace Exploration Agency (JAXA)

Session 3: DART

  Monday, April 26, 2021
  5:45 PM - 6:45 PM


Mr. Thomas Statler
Program Scientist
NASA Headquarters

Intro: PD and PDCO context, Mission Overview & Timeline

Mrs. Elisabetta Dotto
INAF - Osservatorio Astronomico Di Roma

Spacecraft and technology, SmartNav & terminal approach, data to be returned by DART and LICIACube

Dr. Andy Rivkin
The Johns Hopkins University Applied Physics Laboratory

Pre- and Post-Impact Observations, Potentially Dectectable Dynamical Effects

Mr Andrew Cheng

DART "Legacy": Determination of beta, data archive, feeding forward to other missions/efforts

Session Chair

Dawn Graninger
Staff Physicist
Johns Hopkins University Applied Physics Laboratory


Andy Rivkin
The Johns Hopkins University Applied Physics Laboratory

Session 4: OSIRIS-REx

  Monday, April 26, 2021
  7:00 PM - 8:00 PM


Ms. Amy Simon
Senior Scientist

Overview and Highlights of the OSIRIS-REx Mission

Mr. Ronald Ballouz
Postdoctoral Researcher
University of Arizona

Constraining the strength of 100-m scale asteroids through craters on Bennu's boulders and NEO population estimates

Beau Bierhaus
Lockheed Martin Space

Bennu craters in the context of planetary defense

Mr. Michael Nolan
Research Professor
University Of Arizona

Observations of Bennu’s increasing rotation rate, YORP, and implications for Bennu’s evolution

Session Chair

Terik Daly
Senior Professional Staff
Johns Hopkins University Applied Physics Laboratory


Christian Koeberl
University Of Vienna

This is the introduction for DAY 2: Discovery and Characterization

Session 5a: NEO Discovery

  Tuesday, April 27, 2021
  12:00 PM - 1:00 PM


Mr. Andrey Shugarov
Institute Of Astronomy, Russian Academy Of Sciences

System of Observation of Daytime Asteroids (SODA)

Abstract Submission


Dr. Seitaro Urakawa
Senior Researcher
Japan Spaceguard Association


Abstract Submission


Mr Fabrizio Bernardi
Project Manager

New NEODyS Tools for the EU funded NEOROCKS Project: Observations support and Priority Lists

Abstract Submission


Mr. Luca Conversi
ESA's NEO Coordination Centre Manager


Abstract Submission


Mr Igor Molotov
Small Innovation Enterprise «KIAM Ballistics-service»

Asteroid survey and follow up observations with small telescopes in framework of ISON network

Abstract Submission


Session Chair

Luca Conversi
ESA's NEO Coordination Centre Manager


Kelly Fast
Near-Earth Object Observations Program Manager


Alan Harris
Senior Scientist (retired)

This is the introduction for DAY 3: Testing and Mission Planning

Session 7a: Deflection & Disruption Testing

  Wednesday, April 28, 2021
  12:00 PM - 1:00 PM


Dr. Sabina Raducan
University Of Bern

Cratering processes on rubble-pile asteroids: insights from laboratory experiments and numerical models

Abstract Submission


Dr. Robert Luther
Research Assistant
Museum Für Naturkunde Berlin

Kinetic Impactor Technique: Benchmark and Validation Studies with iSALE and SPH

Abstract Submission


Mr Ryota Nakano
Graduate Research Assistant
Auburn University

NASA/Double Asteroid Redirection Test: Orbital perturbation by the ejecta-collision driven reshaping of Didymos after the impact event

Abstract Submission


Mr. Patrick King
Staff Physicist
Johns Hopkins University Applied Physics Laboratory

Late-time Nuclear Disruption in the PDC 2021 Scenario

Abstract Submission


Dr. Nicholas Gentile
Lawrence Livermore

An Overview of Numerical Radiation Transport Techniques in Asteroid Deflection Modeling

Abstract Submission


Session Chair

Patrick Michel
Director Of Research
Observatoire De La Côte D'azur, Cnrs


Angela Stickle
Johns Hopkins Applied Physics Laboratory


Megan Syal
Staff Physicist
Lawrence Livermore National Laboratory
Conference Program
General information on the program
About PDC 2021
Learn more about the PDC 2021.

Media are encouraged to register for this on-line Conference, following registration link below. Media contact list of persons for 2021 IAA PDC.

Call For Papers

Find the leaflet including topic areas for papers...

Data Submission

Find the submission process including templates and authors guidelines

IAA Publications

Publications related to the conference


Registration link


Information to apply for sponsorship...


Application for Scholarship

under construction

Past Conferences

List of past conferences...

Primary Sponsors
The primary sponsors of the conference
Secondary Sponsors
The secondary sponsors of the conference
PDC supporters
Past Conferences
PDC 2021 Speakers
Learn speakers of the PDC 2021.
Gerhard Drolshagen
Drolshagen Gerhard
University of Oldenburg
William H. Ailor
Ailor William H.
Jean-Michel Contant
Contant Jean-Michel
IAA Secretary General
IAA Member Basic Sciences Section
Koschny Detlef
European Space Agency
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