2012 FC71
| Discovery | |
|---|---|
| Discovered by |
Mt. Lemmon Survey A. Boattini (unofficial credits) |
| Discovery date | 31 March 2012 |
| Designations | |
| MPC designation | 2012 FC71 |
|
NEO · Aten Earth crosser |
|
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter : 5 · 7 | |
| Observation arc | 21 days |
| Aphelion | 1.0750 AU |
| Perihelion | 0.9008 AU |
| 0.9879 AU | |
| Eccentricity | 0.0882 |
| 0.98 yr (359 days) | |
| 150.11° | |
| 1° 0m 13.68s / day | |
| Inclination | 4.9430° |
| 38.142° | |
| 348.30° | |
| Earth MOID | 0.0566 AU · 22.1 LD |
| Physical characteristics | |
| Dimensions | 20–40 m |
| 25.2 | |
2012 FC71, also written 2012 FC71, is a small asteroid trapped in a Kozai resonance with the Earth.
It was first observed on March 31, 2012, by Andrea Boattini observing for the Mt. Lemmon Survey. Its orbit is characterized by low eccentricity (0.088), low inclination (4.97º) and a semi-major axis of 0.9895 AU; It is an Aten asteroid but also an Earth crosser. As of May 11, 2013 its orbit is based on 35 observations spanning a data-arc of 21 days.
2012 FC71 is locked in a Kozai resonance and as such it has a very slow orbital evolution and it will remain relatively unperturbed for hundreds of thousands of years. It had a close encounter with the Earth on April 18, 2012 at 0.076 AU and it had next one on about May 17, 2013 at 0.0581 AU.
It may have been originated within the Venus-Earth-Mars region or in the main asteroid belt like other Near-Earth Objects, then transition to Amor-class asteroid before entering Earth's co-orbital region.
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