We picked up three
Google Project Loon balloons around 240nm east of Sydney this morning
(HBAL259, HBAL260 and HBAL265), indicated by the short straight lines on the right of the image.
These are the new generation ADS-B ballons, transmitting position data and are currently at 65,000ft.
They have dropped back to MODE S only at times.
Updated position on HBAL260 - the purple lines are all of today's flights, so you can see the full path of the balloons. We will now need to
add a balloon icon to our ASD-B setup. You can go to
http://adsb.16right.com/ Live Radar to track the balloons, and they have appeared
on FlightRadar24 when operating full ADS-B.
1058L Update