The 737-based AWACS replacement, with a fixed radar bar instead of a rotating disc. Live E-7 Wedgetail positions.
No E-7 Wedgetail is transmitting ADS-B at the moment.
Military aircraft are not obliged to broadcast, so this happens regularly. The count refreshes every thirty seconds.
Nothing of this type is up right now.
The Wedgetail does the same job as the E-3 with a quarter of the crew and a radar that does not move. Instead of a rotating disc it carries a fixed dorsal bar housing an electronically scanned array, which can look in several directions at once and has no mechanical parts to wear out.
Australia developed it first and has flown it operationally for over a decade, including deployments to Europe. The United Kingdom, Turkey and South Korea also operate the type, and NATO has selected it as its E-3 replacement.
The fleet is small — well under thirty airframes worldwide — so this page will usually show none or one. When an Australian or British aircraft is working over Europe it tends to stay up for a long time.
Its radar is electronically scanned, steering the beam without moving the antenna. That means it can look in several directions effectively at once, and there is no mechanical rotation to maintain or fail.
Australia, Turkey and South Korea operate it now; the United Kingdom is introducing it, and NATO has selected it to replace the E-3 fleet from around 2031.
It is newer, needs far fewer crew and has a more capable radar, on an airframe that is still in production and therefore supportable. The E-3 carries more people and more workstations, which mattered more in an era before data links did the sharing.