Skip Navigation

Hypothetical Impact Scenarios

The following scenarios are hypothetical simulations developed in support of tabletop asteroid threat exercises. They do not describe real-world events.
Name Description
PDC 2021 Planetary Defense Conference Exercise 2021
PDC 2019 Planetary Defense Conference Exercise 2019
PDC 2019c Planetary Defense Conference 2019 - Comet Scenario
PDC 2017 Planetary Defense Conference Exercise 2017
PDC 2015 Planetary Defense Conference Exercise 2015
FEMA 2016 Summary Report on TTX#3: Near Earth Object Impact Tabletop Exercise
FEMA 2014 Summary Report on TTX#2: Tabletop Exercise for Asteroid Impact Event
FEMA 2013 Tabletop Exercise for Short Warning Near Earth Object Impact Event