UFO Sighting in East Amwell Township, New Jersey on 2017-06-01 22:45:00 - Slow moving satellite looking object, sudden large flash then the object accelerated to a tremendous speed

I was walking my dogs in the backyard around 10:45 pm. i was star gazing as it was a very clear night. i observed an object moving from south to north that appeared to be a satellite. as i was observing the object it gave off a tremendous flash. continuing in it's original straight line trajectory it began to accelerate exponentially and disappeared within a couple of seconds. i was startled and excited by the acceleration at what i assume was a very high altitude.