About Satelog

Satelog is a free, real-time 3D map of everything in Earth orbit: working satellites, space stations, rocket bodies, pieces of debris and objects that are not identified yet, about 30,000 in total.

Open the map   Browse the catalog

What you can do

• Watch the ISS, Tiangong, Starlink, GPS, weather and geostationary satellites move in real time.
• See orbit paths, direction of travel, day and night, city lights and the Moon.
• Find which satellites are above your location, or visible to the naked eye.
• Search and filter the whole catalog by name, country, orbit and launch year, then show your selection on the map.
• Share any object as a link or as a ready-made image.

Where the data comes from

Orbital elements and object details come from CelesTrak, which republishes the public catalog of the U.S. Space Force. Positions are computed in your browser with the standard SGP4 model, so they update every second without a server.

Earth imagery is Sentinel-2 cloudless by EOX IT Services GmbH (contains modified Copernicus Sentinel data), plus NASA Blue Marble and Black Marble via GIBS, and the Moon from LRO WAC via NASA Moon Trek. Full credits are shown at the bottom of the map.

How accurate is it

Positions are good for watching and learning, typically within a few kilometres for fresh data and worse for old elements. Satelog is not meant for navigation, collision avoidance or any safety decision.

Privacy

There are no accounts, no ads and no analytics. Satelog does not use cookies, so there is no cookie banner.

To work well, the site stores a few things on your own device and nowhere else:

• Settings you choose, such as the map style and marker type (local storage).
• Your place, a city you pick or your location if you press “Use my location”. It stays in your browser and is never sent to Satelog.
• Cached orbit data, so the map opens faster (browser database). It refreshes every couple of hours.

You can clear all of it in your browser settings at any time. Satelog’s own servers only serve the site and the orbit data.

Like any website that shows maps, Satelog loads some data from other services: Earth and Moon imagery from EOX and NASA, and orbit and catalog data from CelesTrak. Those services can see your IP address and browser type when your browser requests files from them, as described in their own policies.

Who makes it

Satelog is an independent project by Anton Kalik. Follow it on Instagram @satel.log. You can reuse the logo and brand kit to link to the site.