On the other hand, if it was created in an ephemeral event you have an absolute maximum of 300 nanoseconds to point your telescope at it :) (taking your number on faith)
They state that the particle differs from light by 1 cm every 220,000 years. Considering the age of the universe is about 14 billion years, that works out to 63636 cm. It takes light 2210 nanoseconds to cover that distance.
