Pulsating UFO zips by Chinese spacecraft Shenzhou-8, in front of the cameras

Nov. 14th, stunning footage of a pulsating disk shaped UFO, passing in high speed by the Chinese spacecraft SHENZHOU 8, while it undocks from TIANGONG 1 module.

YT: At about 2:34 / 2:35 not only does the object in question flash / pulsate, but below it there are 2 more flashes of light briefly that create a triangle.

YT: But there are doubts. The object had a consistent trajectory, and no maneuvering of the Chinese spacecraft were taking place. maybe space junk or an airy object such as an ice particle moving close to the camera? What do you think?