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National UFO Reporting Center Sighting Report
Occurred : 8/31/2017 10:00 (Entered as : 8/31/2017 10:00)
Reported: 8/31/2017 9:42:32 PM 21:42
Posted: 9/5/2017
Location: Grass Valley, CA
Shape: Circle
Duration: 30 seconds
I seen it twice in one night. Once with a witness bright orb traveling through the sky bright flash then disappeared. I also was taking to friend on phone.