ISS, Tiangong, Satellites Over Puna

[TomK]

Paul - I saw the flashes as well. I don't believe it was an iridium flare. I suspect we both saw a large piece of tumbling space debris, the flashes were a little too random to be anything else in my opinion. I don't know for certain and will try and get confirmation, but two possibilities are debris from Fengyun 1C (a Chinese weather satellite they deliberately destroyed in an anti-satellite missile test), or the remains of a NASA Delta rocket. Both were roughly in that spot at around 19:40.

Edited: typo