This appears to be the FBI surveillance plane John Wiseman tracked using a BeagleBone black, an RTL-SDR dongle, dump1090 and PlanePlotter https://twitter.com/l

This appears to be the FBI surveillance plane John Wiseman tracked using a BeagleBone black, an RTL-SDR dongle, dump1090 and PlanePlotter https://twitter.com/lemonodor/status/605825895295651840 https://twitter.com/lemonodor/status/605825895295651840 http://arstechnica.com/tech-policy/2015/06/how-i-tracked-fbi-aerial-surveillance/ http://arstechnica.com/tech-policy/2015/06/how-i-tracked-fbi... Correction: The FBI plane is not the primary focus of this article, but it is mentioned: "Occasionally, [Persistent Surveillance's] Cessna has had to share airspace with an FBI airplane. Last year, two days after the Freddie Gray riots began, the FBI flew over Baltimore for five days—actions that were discovered when local aviation enthusiasts noticed a plane’s strange flight orbits on a public website that tracks radar data. According to information and footage released this summer by the FBI, its plane wasn’t doing the sort of wide-area motion imaging that Persistent Surveillance does but instead was zooming in on specific targets. McNutt says the FBI doesn’t coordinate its flights with him, and he doesn’t know what the agency is investigating; however, when his plane is in the air at the same time as the FBI’s, air traffic controllers insist that McNutt’s plane remain at a lower altitude than the federal craft."