Stationary light hovering at great altitude during daylight hours and then accelerating to great speed in a westerly direction.Highmoor Dam is situated at Longditude 29°34'and South Latitude 29­°25'. While watching two eagles soaring overhead my wife noticed a silver object shining in the sky directly overhead. She pointed it out to me and asked what I thought it was. At first I thought it was sunlight reflecting off a geostationery satelite, although I had never seen this type of phenomena before. The altitude of the shining disc was estimated to be that of a satelite which is normaly seen in the night sky. We both viewed the stationery object for a few minutes before sighting it through a pair of binoculars. There was very little to add to the above explanation except that what I considered to be reflected light was seen to be closer due to the magnification. After about 15 minutes with absolutly no movement of the object I decided to capture it on video. I fitted a telephoto lens to the camera but battled to sight the object through the viewfinder. I had been out camping in the area for two weeks taking footage of the trip. It was at this moment when I needed the camera that the battery went flat, hence no video. It would not have been of much use anyway as all it would have shown was a dab of silver light against a blue background. We both continued to rick our necks looking directly above us at this object. Having seen all these spy movies on TV I then thought it was big brother looking in, so I pulled a couple of zap signs at it. My wife went into the tent for a few moments and when she came back out, asked if I could still see it. I was using the binoculars and could see it clearly. The next instant it started moving in a westerly direction picking up speed as it went. My wife asked me where to look. I did not take my eyes off the accelerating light, but said just follow the binoculars. The object moved through a 90° arc in approximatly 15 seconds where I lost sight of it behind some bushes at the back of our tent. I estimated its speed to be at least ten times faster than the satelites I have seen in the night sky. I d! on't kno w if we have anything on our planet than can hover at great altitude for the 30 minutes that I observed it and then accelerate to a guesstamate speed of some 270 000 km/p/h. I have always thought there might be ET's out there and if you cannot give some form of sane explanation to this one then I am convinced I saw a UFO.