I watched ISS go over Albany, GA around 8:20PM March 17. It got up to 87°, was in a sky not yet dark and appeared at -3.8, the brightest passage we'll see until next Sept when we get a -4.0. I am always amazed at how fast it goes.
The kinetic energy of 445 metric tons moving at 7.66 km/sec is 1.3x10^13 joules or about the same energy as in a mass of .2 grams.