ISS Detector VS Heavens Above

Highly recommend downloading the free ISS Detector app for iPhone/Android: http://issdetector.com/. Source: about 2 years ago

How did you know it was going to appear? I use the great free app called ISS Detector (issdetector.com). Source: about 2 years ago

Consider a phone app called ISS Detector. It shows you where to look in the sky, will sing an alarm before it happens, and reports projected brightness for the viewing. Again, late springtime has the best dance card. For reasons. Someone from the Astronomy department could chime in to augment and correct all this hearsay. Source: over 2 years ago

The Heavens Above site will give predictions of satellite passes based on location and time, and will predict brightness as well. For example, here's a guess at the 501 location for last night (you might have to set the date yourself). Looks like the SL-16 R/B satellite or the Resurs 01 rocket stage are good candidates; they're about the right time and direction. If you knew time, location, and/or direction more... Source: 11 months ago

Heavens-Above (multiple platforms, lists satellites). Source: over 2 years ago

Also worth noting: https://heavens-above.com/main.aspx But this has a much nicer UI/UX! The street view rendering is particularly impressive. - Source: Hacker News / about 3 years ago

I have seen planes where they look like just flashes of lights until you get into a really dark place and can see the lights that are always on. I think they fly at higher altitudes for faster, more efficient travel. There are a couple of ways to check into this, though. Heavens-Above tracks satellites and flightradar24 has a playback function for times going back a week. Source: about 3 years ago