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Solved: U-Shaped Contrail near San Francisco [NASA502 Survey, again]
Several tweets about this today: I'm assuming these are near real-time, as people tweet from their phones. That would put this one at around 12:50 PDT (UTC-7) 19:50 UTC. It appears to be looking due south, from...
Aug 14, 2014
Skydentify - What is that Thing in the Sky?