I was jogging at approximately 9:03 p.M. (+/-2 minutes) as i saw a flying object. the object was oval like an egg, but a bit more rounded on his lateral extremes. it had two windows, from which lights were seen. the windows were located at the front, under the middle radius of the object. the form of them were very characteristically, at the sides of the windows towards the middle the 2 sides were angled, and the side towards the outline was one round. it was dark by that time. i noticed the object, because i was in the right field of view, when it flied from north to south at the horizon in a straight line. it was at least four times faster than a domestic airplane. i was shocked when i saw it, because i interpreted it at the first glance like a ufo, because it is well-known that no airplane can flight at such an accelerated speed. i stopped running when i saw it. the crucial point of my observation, what made me sure to have seen a ufo, is the following: after 1 and a half second it vanished, while it flew. i believe the object accelerated that much that it was impossible to follow it with eyes, because his direction was vienna. i stared at the point i saw it for 2 minutes, because i was so impressed of my experience. i was astonished, because i had a personal proof that ufos are a real phenomenon.