Very bright UFO filmed over San Leandro, California

On December 7, 2014, in the morning, a very bright unidentified light was filmed over San Leandro, California. What is it?

Witness report:

Looking se from our backyard in san leandro, ca. very bright light caught our attention and we both started watching it. in the beginning we thought it might be close, thought it might be hovering, but it was probably our own motion. an hour later it was much higher in the sky and appeared very far away, but still extremely bright. filmed on iphone x going between 0-6x digital zoom, camera gives it an odd donut appearance. checked on it frequently in-between, but filmed at 5:14am and 6:07am, then we had to leave.

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Source, 20th December 2018