Re: Asteroid impact with Earth 2019?
It will be interesting as Asteroids like this get scrutinized to see if the orbit changes dramatically from the predicted orbits over a period of 20 or so years... Thus making hazordous objects no longer hazordous and non-hazordous objects suddenly hazordous.
In otherwords, with what degree of accuracy can we really predict where objects of this type will be in 20 years? Do we need continuous observation or can we log an object's existance, determine that it is no threatening, and then allow ourselves the luxury to forget about it.
Scott