As you may have heard, a new quasi-satellite of Earth has been discovered. The asteroid, named 2016 HO3, technically orbits the sun, but in a way that makes it circle the Earth as well. For more info you can check out
NASA's article on it.
Using orbital parameters for 2016 HO3 that I found (thanks, Wikipedia), I made a simulation of it in US
2, which I've included for download. If you want to see how the asteroid appears to orbit Earth, set Earth as the trail center in its advanced options (the no planets version is included because the trails get a bit cluttered if all of the planets are there).