[cjbprime]

Oh cool, thanks! TCAS is much more capable than I expected, I thought it was more like a decentralized coin-toss consensus algorithm.

An aside:

> 3.10.1.1 The ACAS algorithms operate in a cycle repeated nominally once per second. At the beginning of the cycle, surveillance reports are used to update the tracks of all intruders and to initiate new tracks as required. Each intruder is then represented by a current estimate of its range, range rate, altitude, altitude rate, and perhaps, its bearing. Own aircraft altitude and altitude rate estimates are also updated.

Words that should probably never appear in technical specifications: "perhaps".