On the night of July 7, many witnesses reported a fireball on the DNF mobile app.
The reports were then cross-referenced with user-submitted locations and photos snapped by the DFN.
Mr Shober said: “The DFN was able to photographically image and video record a majority of the fireball’s atmospheric trajectory, including where it entered and exited the atmosphere, using many of the DFN cameras.
“Looking at all the data associated with the meteoroid we estimate that it had an initial mass of 60 kilograms when it first entered Earth’s atmosphere, but then lost about 20 kilograms before it exited back into space.
“The ‘weight loss’ happened when the meteor was burning up in the atmosphere, creating the spectacular light show that so many people saw that evening.