Planetary Defense Conference Exercise - 2015

The 2015 PDC Hypothetical Asteroid Impact Scenario, Update 7: August 27, 2022

• Day 5 Update 3 Press Release
• Day 5 Update 3 Press Briefing Charts
• Day 5 Update 3 Physical & Infrastructure Effects Briefing

Day 5 Update 3 Images

• Impact footprint for the asteroid fragment of 2015 PDC, based on the recent radar measurements from NASA’s Goldstone station. The footprint is about 20 km long and 5 km wide and centered over the city of Dhaka, captial of Bangladesh.

• First radar images of the fragment of asteroid 2015 PDC heading for impact with the Earth on Sept. 3, 2022. The object is about 80 meters in size.

Day 5 Update 3 Notes

• Impact will occur at about 9:50 am local time.

• The fragment will enter the atmosphere at 16 km/s at an angle of 36 degrees from horizontal, releasing about 18 Megatons of energy, but a crater-forming impact is very unlikely.

• The object will almost certainly explode in the atmosphere as an airburst, much like the Tunguska explosion of 1908.