Bit of an odd one to ask here given I'm posting from Sussex and wasn't anywhere near Phoenix, but I've been trying to understand something similar that happened to me last year.
We had three lights moving in a loose triangle shape over the South Downs, completely silent, and I got some photos but they came out blurry and not much use. My question is - for those of you who actually witnessed the Phoenix sighting, did the lights maintain a fixed distance from each other or did the triangle shape sort of shift and reform? That's the thing that stuck with me from my experience, the formation kept changing slightly but never broke apart completely.
Also wondering if anyone tried a spirit box session nearby afterwards. I know that sounds like a stretch but I've read a few accounts where UAP sightings seem to leave some kind of residual energy in an area.