NOAA Space Weather Prediction Center (SWPC): Intelligence Source Guide
SWPC publishes the operational space weather picture as open JSON and text: solar wind at the L1 point, geomagnetic indices,...
SWPC publishes the operational space weather picture as open JSON and text: solar wind at the L1 point, geomagnetic indices,...
Airframes.io aggregates decoded aircraft datalink messages - ACARS, VDL Mode 2, HFDL and satellite AERO - from a volunteer receiver...
A callsign is a licensed identity broadcast in the clear. Few identifiers are simultaneously regulated, globally unique and publicly indexed....
An IMEI identifies a handset, not a person and not a phone number. Confusing device identity with subscriber identity is...
A cell identifier is not a location. It is a piece of network infrastructure with a coverage footprint, and confusing...
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...
Signals intelligence is a state function with a warrant behind it. For everyone else, the discipline still matters, because you...
The spectrum is a public utility with a public map. Licences, allocations and open receiver networks let you characterise the...
Imagery shows you the object. Measurement and signature intelligence tells you what the object is doing, how hot it is...
A cargo operator with three aircraft filed forty-one flights in a month, all into the same two airports, all with...
Aircraft over a whole region started reporting navigation integrity failures within the same hour. No one announced anything. The spectrum...
A satellite manoeuvred twice in one week and ended up station-keeping four kilometres from another operator's communications bird. Nothing was...