On july 26th at the misty mountain campground in townshend vt i witnessed a ufo which at first i believed to be either a satellite or the iss. i kept looking at it because i couldn't detect any flashing lights at all that would rule it out as a plane or other such vehicle. it's trajectory at first was extremely steady although as i kept an eye on it after about 1-2 minutes it began to stutter, as if it were stopping to pause mid-flight, and then speeding up almost to make up for it's lost time. as it was stuttering in this manner it also descended in altitude each time, at varying speeds. eventually it moved behind cloud cover and faded from my vision.