Streetcap1: "I do not think this is a glitch on the camera lens. The detail on this object is fantastic even without close up, if they are aware of the SOHO Satellite then maybe this is their way of saying hello. The craft is maybe a couple of miles from the Camera."
It seems there's a lot of UFO activity near the sun again. Some days earlier, on September 27, 2015, Helioviewer recorded a giant spherical object passing near the sun at extreme speed.
The object seems to be twice the size of the Earth. (Second video).