ISS Distance Tracker

The International Space Station orbits Earth approximately 16 times per day at an altitude of 400–450 kilometers. Because it operates in low Earth orbit, it passes over—or within close range of...every location on Earth multiple times daily. The station experiences 16 sunrises and 16 sunsets in a 24-hour period. This extension calculates the real-time ground distance between your geolocation and the ISS, updating continuously as the station moves. When the ISS passes within 800 kilometers of your position ...when it is potentially visible overhead or executing a close flyby ...the extension sends a notification.