5 ms·

Actually, that's pretty good! Can you estimate the lag time (for you)?

teraflop 14y ago
In the US at least, the FAA's official data feed (ASDI) is delayed by at least 5 minutes. The undelayed data is only given out on an as-needed basis (e.g. to airline operators) and can't be redistributed to the general public.
- caudicus 14y ago
  I stumbled into the about section, and in there they mention they're using a fleet of 500 volunteer ADS-B receivers networked to a central server, and they actually just pick up on planes with ADS-B transponders (more common in Europe than the US, it seems) - http://www.flightradar24.com/about http://www.flightradar24.com/about - so it looks like they're not aggregating official/moderated data feeds or anything.
  - chmars 14y ago
    FlightRadar24 nevertheless follows the FAA 5-minute rule. In other countries, there is even a delay of 10 or 15 minutes. In Switzerland, the federal aviation authorities tried to impose a delay as well. After a wave of protest pointing out the absurdity of such security through obscurity – you can see aircraft in the sky after all! -, a delay is no longer necessary and you can check in real time which aircraft is flying over your head at the moment (if equipped with ADS-B).
    - cjrp 14y ago
      I'm not sure it follows the 5-minute rule for non-FAA data. I've watched, for example, an Emirates A380 go over my flat (near Heathrow) almost exactly as it's passing on the FlightRadar24 map.
  - cjrp 14y ago
    They recently added FAA data to the US map (go to Settings on the left and tick "Show FAA traffic").
aes256 14y ago
Near London, UK here. Almost exactly realtime for me. Mind-blowing accuracy actually. Sky is clear out so I just looked out my window, saw two planes going in opposite directions. Looked at the site, and there they were. Really cool!
- davidw 14y ago
  You could hack a tablet app to find out which way the tablet is oriented, and using the flight data, annotate the image from the camera with the phone information.

In the US at least, the FAA's official data feed (ASDI) is delayed by at least 5 minutes. The undelayed data is only given out on an as-needed basis (e.g. to airline operators) and can't be redistributed to the general public.

caudicus 14y ago
I stumbled into the about section, and in there they mention they're using a fleet of 500 volunteer ADS-B receivers networked to a central server, and they actually just pick up on planes with ADS-B transponders (more common in Europe than the US, it seems) - http://www.flightradar24.com/about http://www.flightradar24.com/about - so it looks like they're not aggregating official/moderated data feeds or anything.
- chmars 14y ago
  FlightRadar24 nevertheless follows the FAA 5-minute rule. In other countries, there is even a delay of 10 or 15 minutes. In Switzerland, the federal aviation authorities tried to impose a delay as well. After a wave of protest pointing out the absurdity of such security through obscurity – you can see aircraft in the sky after all! -, a delay is no longer necessary and you can check in real time which aircraft is flying over your head at the moment (if equipped with ADS-B).
  - cjrp 14y ago
    I'm not sure it follows the 5-minute rule for non-FAA data. I've watched, for example, an Emirates A380 go over my flat (near Heathrow) almost exactly as it's passing on the FlightRadar24 map.
- cjrp 14y ago
  They recently added FAA data to the US map (go to Settings on the left and tick "Show FAA traffic").

aes256 14y ago

Near London, UK here. Almost exactly realtime for me. Mind-blowing accuracy actually. Sky is clear out so I just looked out my window, saw two planes going in opposite directions. Looked at the site, and there they were. Really cool!

davidw 14y ago
You could hack a tablet app to find out which way the tablet is oriented, and using the flight data, annotate the image from the camera with the phone information.