Live satellite tracking
Check a satellite's position and plan your pass observation
Track the International Space Station (ISS), Starlink satellites, the Hubble Space Telescope and hundreds of other objects in orbit in real time. Choose your location on the map and see when they will pass above your home.
World map and pass planner
Loading satellite selection
Current position of Satellite on the world map
Loading the Protomaps world mapObserver location
Location requiredSearch for a place or enter exact coordinates. The selected location remains in this browser.
Upcoming passes
Waiting for locationSet an observer location to calculate passes for the selected satellite.
How does satellite tracking work?
The SkyLep satellite tracker lets you check where a selected satellite is and when you will be able to see its next pass from your location. You can track, among others, the International Space Station (ISS), Starlink satellites, the Hubble Telescope, and many other objects orbiting the Earth.
Where is the satellite?
After selecting an object, the map shows its current position above the Earth. The position is calculated based on data describing the satellite's orbit.
This does not mean that we receive a GPS signal directly from the object. The computer calculates its position based on the known orbit and the current time. This also allows us to predict where the satellite will be in a few minutes or hours.
When will the satellite pass over my location?
To check upcoming passes, select your town or enter the exact coordinates of your observation site. Below the world map, there is a module that calculates passes for your location.
The tracker will calculate when the satellite will appear above the horizon, when it will be highest in the sky, and when the pass will end. The result will be different for every location on Earth, so it is important to provide the correct location. The pass will be presented as a sky map with the object's path across the sky marked.
The higher the satellite is above the horizon, the easier it is usually to observe.
Is every satellite pass visible?
No. A satellite may pass over your location and still remain invisible.
Most satellites do not emit their own light. We see them because they reflect sunlight. The best conditions occur when it is already dark for the observer, but the satellite high above the Earth is still illuminated by the Sun.
Visibility is also affected by the height of the pass above the horizon, the brightness of the satellite itself, cloud cover, city lights, and obstacles such as buildings and trees.
Therefore, the forecast should be treated as information about when and where to look for a satellite in the sky, rather than as a guarantee that the object will definitely be visible.
How can you observe satellites?
In most cases, you do not need a telescope. Bright satellites can be seen with the naked eye as moving points of light. They do not blink like airplanes and usually move steadily across the sky.
Select the satellite you are interested in, set your observation location, and check the nearest pass. A few minutes before the specified time, go to a place with as wide a view of the sky as possible and look in the direction indicated by the tracker.