All this excitement and publicity about #ADSB and bots that publish locations to Mastodon is great.

There is a pretty good set of bots called “Advisory Circular” which detects when planes are circling an area. Typically these are surveillance flights, keeping urban people oppressed with loud rotor noises at night, but there are other fun things that pop up sometimes.

List of Twitter bots (currently at 22 bots):
https://mobile.twitter.com/i/lists/1263724487435890688

Code:
https://gitlab.com/jjwiseman/advisory-circular/

#C4ADS #ADSBExchange