Was scanning night sky hoping to take videos of meteors using Nikon D500/500mm telephoto lens. Observed bright object. With my finger on video button, I could only capture about 0.5 seconds of the object that was travelling at very high speed (velocity). Have observed the International Space Station (ISS) a number of times, even directly overhead; this object was not the ISS. The speed of this object was impressive. Subsequently, I edited the video from 16 MB to reduce the file size. I have attached the shortened portion of the video which is included in a powerpoint slide file. The original video data shows the video speed to be 30 frames per second. I used some very basic image filters on enlarged images of the object to get a better sense of the object profile. Frame 6 of the PPT slide file gives what appears to be the profile of the object. I am an amateur photographer and environmental scientist; just being curious about what I observed.