Summer 1984, Cigar Shaped Craft seen in Nottingham U.K.

I originally sent the text below to an english based UFO site approx 10-12 years after my sighting (but got no interest). I wont change anything i said then to how i remember it now. i am slso unsure about the month or the exact date, but after reading my account you should be able to figure out the exact date.
 Description: During the opening ceromony of the L.A. olympics(on T.V.).myself and my mother went outside to check on our dog,and we witnessed a cigar shaped craft approx. 150 feet in length,it had about 5 or 6 type of portholes,with silloetted humanish type beings at the portholes.it seemed to hover about 30 feet above a neighbours house(with no sound).the neighbours house was about 150 yards away from us,and i can remember our dog barking at it.and then in what seemed a second later,there was no craft and our dog was no longer barking,and we found her asleep in the lounge.this is something that i will never forget,but i`ve always thought something else happened that night,it always seemed strange that one moment the craft was there and the next moment,nothing...in the blink of a eye.
End  Additionaly, i can remember arguing with my mum as to who should run upstairs and get my camera....she only recently reminded me of this.
Witness indicates that date of sighting is approximate.  PD