In April 2029, asteroid Apophis will pass just 32,000 kilometres above Earth—inside the orbit of geostationary satellites—and NASA’s OSIRIS-APEX spacecraft will follow close behind to see what Earth’s gravity did to it - Space Daily
Source:Space Daily
Apophis will pass inside geostationary altitude in April 2029, giving OSIRIS-APEX a rare chance to inspect how Earth’s gravity changed it.