2013 LX28
Near-Earth asteroid and quasi-satellite
From Wikipedia, the free encyclopedia
2013 LX28, is an asteroid, classified as near-Earth object of the Apollo group that is a temporary quasi-satellite of the Earth, the third known Earth quasi-satellite.[6][7]
| Discovery | |
|---|---|
| Discovered by | Pan-STARRS |
| Discovery date | 12 June 2013 |
| Designations | |
| 2013 LX28 | |
| Orbital characteristics[2][3][4] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 1 | |
| Aphelion | 1.4543719 AU (217.57094 Gm) |
| Perihelion | 0.5488609 AU (82.10842 Gm) |
| 1.00161641 AU (149.839682 Gm) | |
| Eccentricity | 0.4520249 |
| 1.00 yr (366.14 d) | |
| 61.458811° | |
| 0° 58m 59.602s /day | |
| Inclination | 49.97420° |
| 76.679354° | |
| 345.77666° | |
| Earth MOID | 0.373137 AU (55.8205 Gm) |
| Jupiter MOID | 3.8786 AU (580.23 Gm) |
| Physical characteristics | |
| Dimensions | 130–300 m[a][5] |
| 21.7[2] | |
Discovery, orbit and physical properties
2013 LX28 was discovered on 12 June 2013 by the Pan-STARRS survey, and its discovery was announced in a Minor Planets Electronic Circular on 15 June.[8] As of September 2014, it has been observed 26 times with a data-arc span of 349 days. It is an Apollo asteroid and its semi-major axis (1.0016 AU) is very similar to that of the Earth. It has relatively high orbital eccentricity (0.4521) and high orbital inclination (49.9761°). With an absolute magnitude of 21.7, it has a diameter in the range 130–300 m (for an assumed albedo range of 0.04–0.20).[2]
Quasi-satellite dynamical state and orbital evolution
See also
Notes
- ^ This is assuming an albedo of 0.20–0.04.
