Live · — aircraft now

Open ADS-B data
a global network
born in Italy

More than 3,000 receivers around the world send us ADS-B and Mode-S directly, with multilateration of our own — military aircraft included. Non-profit, unfiltered.

Explore the map → Research
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What we collect

Global ADS-B coverage

Feed from 3,000+ receivers that send to us first-hand, across Europe, the Americas, Asia and Oceania, plus adsb.lol and theairtraffic.com.

aircraft.json · 0.2s

Our own MLAT

Multilateration on aircraft without full ADS-B transponders, military included. Our own server, 1,856 synchronised receivers.

mlat-server · port 30100

Mode-S BDS50/BDS60

True Air Speed, magnetic heading and Mach number via Mode-S Comm-B. Used to reconstruct upper-troposphere wind profiles.

Mode-S EHS · BDS50 · BDS60

Ongoing research

From airspace to science

All projects →
Meteorology Ongoing

Upper-troposphere wind measurement from aircraft in flight

Commercial aircraft are distributed meteorological sensors at altitude. By extracting wind components from Mode-S messages (BDS50/BDS60) and comparing them against ERA5 reanalysis and IASI satellite profiles, we are validating the quality of avionics data as an independent meteorological source.

Method
W = Vground − Vair
Validation
ERA5 · IASI (MetOp)
Typical RMSE
6.5–7.4 m/s (u, v)
Mode-S vs ERA5
Bias u +0.21 m/s
Bias v +1.77 m/s
RMSE u 7.38 m/s
RMSE v 6.57 m/s
Jun 23, 2025

Contribute

Join the network

Data quality depends on network density. A Raspberry Pi and an RTL-SDR antenna are all you need to add coverage to your area. Total cost under €30.

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