Pictured are scientists conducted simulations as if it were a real world emergency
The joint NASA-FEMA exercises included representatives of several other federal agencies, including the Departments of Defense and State. Lindley Johnson, NASA's Planetary Defense Officer, said: 'Each time we participate in an exercise of this nature, we learn more about who the key players are in a disaster event, and who needs to know what information.' This showed the asteroid was much smaller than previously thought, thus reducing the expected region of damage from the impact.Īt this point, astronomers were able to narrow the impact region to be centered near the border of Germany, the Czech Republic, and Austria, and determined the asteroid had a 99 percent probability of impacting within this region. 2021PDC was now an estimated 3.9 million miles from Earth, which was close enough for Goldstone Solar System Radar to detect and analyze 2021PDC and significantly refine the asteroid's size and physical characteristics.
The failure of the exercise lies with our inability to send a spacecraft to the asteroid months before impactĭay FOUR of simulation - October 14, 2021: The final day of the hypothetical asteroid impact exercise, Day 4, fast forwarded to October 14 - just six days before impact.
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