@DJC, I think it would be very useful if you actually observe the ISS flying overhead, so you know what we are talking about.
Tonight, from 10:13PM to 10:19PM there will be an excellent ISS transit over Hamilton, Ontario, Canada (which you said was your location).
It will start out as a dim moving light in the southwest, and gradually brighten and seem to speed up as it gets closer, and higher in the sky. at around 10:16 it will be nearly overhead, at 80° above the horizon. Then it will seem to descend as it moves towards the horizon, getting dimmer, and setting in the north east.
It's a great opportunity to get some perspective on this discussion, and you only get viewing opportunities like this every few weeks, so I highly encourage you to watch it tonight.
https://spotthestation.nasa.gov/sig...ada®ion=Ontario&city=Hamilton#.V5j3NJMrLmE
Tonight, from 10:13PM to 10:19PM there will be an excellent ISS transit over Hamilton, Ontario, Canada (which you said was your location).
It will start out as a dim moving light in the southwest, and gradually brighten and seem to speed up as it gets closer, and higher in the sky. at around 10:16 it will be nearly overhead, at 80° above the horizon. Then it will seem to descend as it moves towards the horizon, getting dimmer, and setting in the north east.
It's a great opportunity to get some perspective on this discussion, and you only get viewing opportunities like this every few weeks, so I highly encourage you to watch it tonight.
https://spotthestation.nasa.gov/sig...ada®ion=Ontario&city=Hamilton#.V5j3NJMrLmE