2017 BS5

2017 BS₅ has a low-eccentricity orbit with a semi-major axis only slightly larger than that of Earth. It orbits the Sun at a distance of 1.008–1.023 AU once every 1.02 years (374 days). Its orbit has an eccentricity of 0.01 and an inclination of 11° with respect to the ecliptic.^[1] It has an Earth minimum orbital intersection distance of 0.007 AU (1,050,000 km), which corresponds to 2.7 lunar distances.^[1] The body is too small to be classified as a potentially hazardous asteroid.

On 23 July 2017, it passed by within 3.15 lunar distances.^[4] Seen from the Earth it passed straight north to south from Draco south into Scorpio. With its 1.023 year orbit it has a synodic period of 43 years with the Earth, so it will flyby the Earth every 43 years or so. JPL Small-Body Database's simulator show the previous flyby in July 1973 and next one will be in July 2061.

• MPEC 2017-B69 : 2017 BS5
• 2017 BS5 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation
• 2017 BS5 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters