2012 EG5 is an Apollo near-Earth asteroid with an estimated diameter of 47 meters (154 ft).[3] The asteroid was discovered on March 13, 2012. The asteroid came within 0.001539 AU (230,200 km; 143,100 mi) of Earth during its closest approach on April 1, 2012,[2] just over half the distance between Earth and the moon's orbit. It was briefly listed on the Sentry Risk Table with a 1 in 2,778,000 chance of an impact in 2107.[3] It was removed from the Sentry Risk Table on 1 April 2012.[4]

2012 EG₅

The orbit of the asteroid 2012 EG5 during its flyby on April 1, 2012. The asteroids path is shown by the blue line.
Discovery[1]
Discovered by	Pan-STARRS
Discovery site	Haleakala Observatory, Haleakalā, Hawaii
Discovery date	March 13, 2012
Designations
MPC designation	2012 EG5
Alternative designations	MPO 230288
Minor planet category	Apollo NEO
Orbital characteristics[2]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 3[1]
Observation arc	21[1] d
Aphelion	3.31229 AU (495.512 Gm)
Perihelion	0.98483 AU (147.328 Gm)
Semi-major axis	2.14856 AU (321.420 Gm)
Eccentricity	0.54163
Orbital period (sidereal)	3.15 yr (1150.32 d) 3.15 yr
Mean anomaly	256.02°
Mean motion	0° 18m 46.512s /day[1]
Inclination	3.02915°
Longitude of ascending node	192.919°
Argument of perihelion	16.002°
Earth MOID	0.0000309134 AU (4,624.58 km)[2]
Mercury MOID	0.54576 AU (81,645,000 km)[1]
Jupiter MOID	1.64413 AU (245.958 Gm)[1]
Physical characteristics
Sidereal rotation period	0.29240 hr[2]
Absolute magnitude (H)	24.3[2]

References

External links

• 2012 EG5 at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• 2012 EG5 at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• 2012 EG5 at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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