Hello i have done the necessary (remembered how to spell using never eat chips eat salad sandwiches and remain young-necessary) to recap i have done the calculations and we are ok it will miss us by approximately 1950.6 of our earth miles , the only caveat is that my workings out have been done with a six inch ruler and a small length of string and some inverted binoculars so im almost sure im correct however in the event i am wrong then i apologise (fingers crossed people) on a serious note however im hoping if this scenario does happen and it could well do, that i am asleep when it comes :)