European Space Agency UFO

What is this strange object orbitting the Comet P67 during the European Space Agency ESA mission of 2014.

The agency does not say but again we ask what is it?

Credits/Attributions.

Images:

ESA European Space Agency

Music by:

Infraction

Title:

Cinematic Background Music by Infraction [No Copyright Music]
https://www.youtube.com/watch?v=HjcLlwp_IrY