From 45 seconds he shows about 20 seconds of it moving across the sky, and then he shows stills which he zooms in on:
He believes he's captured a triangular object and hypothesises that it's a space shuttle orbiting at 400km - the same altitude as the ISS.
It looks like a satellite to me, and maybe the apparently too large pixel size of it is as a result of reflection. But that's just a guess; this is not my area at all.
Footage was reportedly shot at 3pm on December 15th, 2018, in the Los Angeles area, with the object moving from west to east. The ISS was visible from there the day before and the day after, but not the 15th.
As a side-note: the comments section shows that his hypothesising hasn't gone down too well, with some believing he may have been compromised, and others saying they "felt him suspect from day one".
He also makes the faux pas of saying, right at the beginning of the video, that he's photographed "a contrail".
or a bird. i tried to find out where the moon was from the ground, but i'm horrible with these programs.. anyway the moon isnt very high in the sky. could be a bird, a plane...
the griffith observatory had a video that day (not of moon) but something flies by that looks the same.. not sure if it is a bird, small plane etc (i'm horrible iwth scale)
video will play just as the thing is flying across
the planes do go west to east (as video description says) around 3pm on dec 15th, but without a somewhat exact location and an exact time... we can't really confirm if it is a plane. Birds fly wherever they want and aren't on radar.
I'm not sure anyone can track satellites witout an exact time either.
Anyone see if it could have been a satellite? Couldn’t hear the audio for the video (in a public place right now) but it moved and looked a bit like a satellite. Not sure if tracking which satellites could have been in the sky at that point is possible or not. Also, being that it looked to be the only small light visible in the sky, the light pollution may have made seeing a satellite impossible