ISS and satellite pass alerts in your calendar
Subscribe once and every visible pass of the space station, Tiangong and bright Starlink satellites over your city appears in your calendar, with a reminder 10 minutes before. 1,051 cities, 21,742 passes in the current 8-night window, updated every 6 hours.
How it works
- Subscribe adds a live calendar: new passes appear and old ones drop off as orbits are recomputed every 6 hours.
- Download imports the current 8 nights once; it will not update.
- Times are computed from CelesTrak orbit data with the same rules as our city pages: the satellite is sunlit, your sky is dark (Sun 6° or more below the horizon) and it is at least 10° up.
Example: New York feed (20 events right now).
Questions
How do I get ISS pass alerts?
Subscribe to your city's calendar here. Each visible pass becomes an event with a reminder 10 minutes before, and the feed updates itself every 6 hours.
Which passes are included?
Every visible ISS and Tiangong pass, and Starlink passes we estimate at magnitude 4 or brighter, for the next 8 nights.
Does it work with Google Calendar and iPhone?
Yes. 'Subscribe' opens your phone or computer's calendar app (Apple Calendar, Outlook); the Google button adds it to Google Calendar. Google refreshes subscribed calendars on its own schedule, often every few hours.
Do you need my location?
No. You pick a city; nothing is sent to us.