Confirmed and named “2021PDC,” an obvious fictitious name by the Minor Planet Center, the simulated asteroid is estimated to be 35 million miles (57 million kilometers) from Earth at that time, and orbit calculations have determined it to have a 5% (1 in 20 chance) of impacting Earth on or around Oct. 20, 2021, six months from its discovery date.įor more detailed information on Day 1’s developments, visit: ĭay 2 Summary (April 27): Day two of the exercise hypothetically fast forwards to May 2, 2021, where astronomers have spent the previous week working to refine 2021PDC’s orbit and impact probability.
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