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]
![]() 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 | |
2012 EG5 | |
MPO 230288 | |
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) |
2.14856 AU (321.420 Gm) | |
Eccentricity | 0.54163 |
3.15 yr (1150.32 d) 3.15 yr | |
256.02° | |
0° 18m 46.512s /day[1] | |
Inclination | 3.02915° |
192.919° | |
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 | |
0.29240 hr[2] | |
24.3[2] | |
References
edit- ^ a b c d e f "2012 EG5". Minor Planet Center. Retrieved 16 August 2017.
- ^ a b c d e "(2012 EG5)". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 3601275. Retrieved 20 August 2017.
- ^ a b "WayBack Machine archive from 27 March 2012". Wayback Machine. 5 August 2006. Archived from the original on 27 March 2012. Retrieved 1 March 2013.
- ^ "Date/Time Removed". NASA/JPL Near-Earth Object Program Office. Archived from the original on 2 June 2002.
External links
edit- 2012 EG5 at NeoDyS-2, Near Earth Objects—Dynamic Site
- 2012 EG5 at ESA–space situational awareness
- 2012 EG5 at the JPL Small-Body Database