OSIRIS Live Tracking: How the Flight, Satellite and Ship Layers Work

Open OSIRIS during a busy afternoon and the first thing you notice is the sky. Thousands of aircraft cross the globe at once, each one a small moving point with a route behind it. The flight and satellite layers are the two most people come for, so here is how they work, where the data comes from, and what to realistically expect from them.

The flight layer: 10,000+ aircraft, live

OSIRIS plots more than 10,000 aircraft at any given moment. Almost every airliner constantly broadcasts its position, altitude, speed, and identity through a system called ADS-B. Ground receivers — many of them run by hobbyists — pick those broadcasts up and share them with public tracking networks. OSIRIS pulls from that public ecosystem and draws the results on its 3D globe.

Click a plane and you get the basics: the flight, where it left, where it is going, and how far along it is. Over the North Atlantic at night you will see the organised tracks flights follow between North America and Europe. Over Europe and the US East Coast in the morning, the map nearly fills in. If you have used a flight tracker before, this is the same underlying data — the difference is that in OSIRIS it shares a map with everything else, which is the whole idea described on our OSIRIS homepage guide.

Honest limits apply. Coverage depends on receiver networks, so remote ocean stretches and some regions show gaps even though planes are there. Some aircraft — military flights, some private jets — block or limit their public data. And there is always a small delay between a plane moving and the map knowing.

The satellite layer: around 2,000 objects overhead

Above the planes sits the satellite layer, tracking roughly 2,000 satellites in real orbits. Space agencies and tracking networks publish orbital data publicly, and OSIRIS propagates those orbits across the globe so you can watch constellations sweep past.

It is genuinely striking the first time. Communications constellations form neat shells. Weather and Earth-observation satellites cross over the poles. You start to understand why astronomers and regulators talk so much about orbital crowding — up there is busy, and this layer makes it visible in a way a table of numbers never does.

Ships below, weather around

Zoom down instead of up and the maritime layer does for the sea what ADS-B does for the sky. Ships broadcast their positions over AIS, and OSIRIS plots them, so the English Channel, the Strait of Malacca, and the big port approaches glow with traffic. Paired with the weather layer, you can watch a storm system move over a shipping lane in something close to real time — one of those combinations that makes a single combined map more useful than five separate sites.

The quake and wildfire layers sit in the same view, which is why people had the tool open during recent breaking stories: one glance tells you what is flying, sailing, burning, or shaking near a place in the news. Our RECON tools guide covers the lookup side of the app, and if you have not opened the tool yet, the access page takes you to the official live demo — it is free and runs in the browser.

How to get more from the layers

• Toggle ruthlessly. All layers at once is a light show. Two or three at a time is information.
• Pair layers with the news feed. See a story, find the place, then check flights, ships, and quakes around it.
• Remember the delay. "Live" public data means seconds to minutes old, and coverage gaps are normal. Never treat the map as a safety tool.

None of this data is secret, and none of it is new on its own. What OSIRIS did was put it on one globe, in one tab, free — and that turned out to be enough to make half the internet stop and look.

A note on the earthquake and fire layers

Two layers deserve a quick mention because readers ask about them most after flights. Earthquake markers come from public geological monitoring, so a quake appears once a survey has detected and published it — usually fast, sometimes with a location that gets refined over the following hour. Wildfire points come from satellite heat detection, which means a "fire" marker is a heat signature a satellite spotted on a pass overhead, not a crew standing at the scene. Both layers are excellent for awareness and neither is an emergency tool. Used with that in mind, they turn a headline like "quake near the coast" into something you can actually picture.