sc0ttyd
It seems that life is imitating art.
https://en.wikipedia.org/wiki/Lunar_Landing_Research_Vehicle
The information published is not constant: it is published only when a plane takes off or lands.
The information is not a person's whereabouts - it is that of a vehicle
It could be argued that taking a flight in a private jet is just as much an example of what you term a public event as being at a sports event is, since private jets are required by law to broadcast their exact id and location whenever they are in flight.
https://dataprivacymanager.net/who-does-the-eu-gdpr-apply-to...
Haven't Tokamak Energy in the UK done better than this already back in 2019 with their 24T magnet based on similar HTS tape technology?
https://www.tokamakenergy.co.uk/tokamak-energy-exceeds-targe...