Thanks for sharing this earlier. It reminded me that I should give it a shot tonight. Conditions were great and I just tracked it in my scope for the first time ever, starting when it passed close to Arcturus and until it set. Awesome experience.
Passes tomorrow morning and Sunday morning should be very good.
Really bright ISS pass tonight peaking at 69 degrees. Starts at 20:52 and peaks at 20:56 shortly before it will disappear in Earth's shadow.
Time: Mon Sep 11 8:52 PM, Visible: 4 min, Max Height: 66°, Appears: 10° above SW, Disappears: 47° above ENE
Another opportunity tonight, rising around 20:05.