You do not know those based on that data array. The only possible way to figure it out would be if somewhere inside the data array, there was an object whose physical size you knew.
I like to ask, "How big is an Imperial Star Destroyer" (Star Wars) ? It the original films, it is shown to be huge -- supposedly 1.6 kilometers long, with over 35000 people as staff / crew. You can get some idea by looking at how large other objects are as they go past it. But the real answer is something on the order of 1.5 meters for the model used in filming: the rest is due to perspective.
So unless you have external information or something of known size to compare to, you cannot tell whether what you are looking at is 1.5 millimeters or 1.5 meters or 1.5 kilometers...
