2012 LZ1
2012 LZ1 is an asteroid classified as near-Earth object and potentially hazardous asteroid of the Amor group, approximately 1 km (0.62 mi) in diameter. It passed within 5.4 million kilometers (14 lunar distances) of Earth on 14 June 2012. It was discovered during the night of 10–11 June 2012 by astronomer Robert H. McNaught and his colleagues using the 0.5-meter Uppsala Southern Schmidt Telescope at the Siding Spring Observatory in Australia, just four days before its closest approach to Earth.
Radar image of 2012 LZ1 by the Arecibo Observatory in 2012 | |
| Discovery | |
|---|---|
| Discovered by | Robert H. McNaught |
| Discovery site | Siding Spring Survey |
| Discovery date | 10 June 2012 |
| Designations | |
MPC designation | 2012 LZ1 |
Minor planet category |
|
| Orbital characteristics | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 2 | |
| Aphelion | 4.0667 AU (608.37 Gm) (Q) |
| Perihelion | 1.0492 AU (156.96 Gm) (q) |
Semi-major axis | 2.5579 AU (382.66 Gm) (a) |
| Eccentricity | 0.58984 (e) |
Orbital period (sidereal) | 4.09 yr (1494.3 d) |
Mean anomaly | 312.53° (M) |
Mean motion | 0° 14m 27.312s / day (n) |
| Inclination | 26.102° (i) |
Longitude of ascending node | 264.53° (Ω) |
| 14.241° (ω) | |
| Earth MOID | 0.043164 AU (6.4572 Gm) |
| Jupiter MOID | 1.1348 AU (169.76 Gm) |
| Physical characteristics | |
| Dimensions | ~1 km |
Synodic rotation period | 12.87 h (0.536 d) |
Sidereal rotation period | 10–15 hr |
| 0.02–0.04 | |
| 19.9 | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.