Every aircraft the Skydex volunteer receivers can hear at this moment, on one map of the world, together with the receivers themselves and the sky they have measured over the last 30 days.
313 receivers online, 41 countries, 20 of them with a station, 42,821 aircraft heard in the last 24 hours.
The aircraft are live positions from our own ingest, the same privacy-filtered snapshot every Skydex map draws. Private aircraft are on it as grey outlines carrying their class and nothing else: no hex, no registration, no callsign, because that is all the feed publishes about them.
The receivers are drawn on the 0.1° square their antenna sits in, about 11 by 7 km in central Europe, never on the antenna itself. It is the same grid as the coverage squares, so it says no more than the traffic a station hears already does. A receiver whose owner has not set a position is not on the map at all, and still feeds the network exactly the same.
The blue wash is the measured grid: 0.5° squares where an aircraft was actually heard over the last 30 days. Which antenna heard which square is not published either, so the wash belongs to the network and to no one station.
Receivers are feeding from: Argentina, Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Czechia, Denmark, Finland, France, Germany, Greece, Hungary, India, Indonesia, Ireland, Italy, Japan, Kazakhstan, Malaysia, Mexico, Netherlands, New Zealand, Norway, Philippines, Poland, Portugal, Saudia Arabia, Singapore, Slovakia, Slovenia, South Africa, South Korea, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, United Kingdom, United States of America.
This one answers where the whole network is at this second: every aircraft it hears and every antenna that hears them. tar1090 answers what is flying, and it does that better than anything we would write, but it measures from one configured point and knows nothing about who feeds it. The coverage grid answers where the network has ever heard, with 30 days of history instead of this second.
Coverage grid · Raw tar1090 · The ships network, live
Every dot on it is somebody’s receiver on somebody’s roof. Any ADS-B receiver works: readsb, dump1090, the ultrafeeder image, or the Mac app that needs no Raspberry Pi. A station that has been feeding anonymously can be claimed with its own stream id.