OpenSky Network / ADS-B: Intelligence Source Guide
OpenSky Network is a non-profit, research-governed ADS-B and Mode S receiver network that publishes live aircraft state vectors and, for...
OpenSky Network is a non-profit, research-governed ADS-B and Mode S receiver network that publishes live aircraft state vectors and, for...
A callsign is a licensed identity broadcast in the clear. Few identifiers are simultaneously regulated, globally unique and publicly indexed....
An aircraft carries three identities at once: what is painted on the tail, what the transponder broadcasts, and who actually...
A ship can change its name, its flag and its owner in a week. The IMO number assigned at build...
Overhead imagery does not tell you what happened. It tells you what changed between two dates, and the analyst supplies...
A facility is where corporate paper meets physical reality. Registries tell you who claims the site; the ground truth tells...
Six decimal places is a doorstep. Two is a district. Precision in a coordinate is a decision about harm, not...
Ships are legally required to announce themselves. The interesting behaviour is what happens in the minutes after a vessel stops...
An aircraft broadcasts its identity and position to anyone with a twenty-dollar receiver. The intelligence is not in the position;...
Orbits are deterministic and observable. A satellite cannot hide its manoeuvres from anyone willing to do the arithmetic, and much...