Asteroid 99942 Apophis
Apophis is the Greek name of the Ancient Egyptian god Apep, "the Destroyer", who dwells in the eternal darkness of the Duat (underworld) and tries to destroy the Sun during its nightly passage.
|
This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.
| Alternate designation | 2004 MN4 |
| Classification | Aten, NEO, PHA |
Osculating Orbital Elements
| Epoch | 2453431,5 |
| Semi major axis | 0,9224 AU |
| Period [Julian yrs] | 0,886 Julian years |
| Inclination | 3,331 ° |
| Eccentricity | 0,1911 |
| Lon. of ascending node | 204,473 ° |
| Argument of perihelion | 126,384 ° |
| Passage of perihelion | 2004-Sep-28.672795 |
| Aphelion distance | 1,0986 AU |
| Mean anomaly | 171,708 ° |
Physical Data
| Absolute magnitude (H) | 19,204 |
| Magnitude Slope (G) | 0,15 |
| Spectral class | n.a. |
Discovery Circumstances
| Discoverer | Roy A. Tucker, David J. Tholen, and Fabrizio Bernardi |
| Discovered | 2004-06-19 |
Data File
| Data File Name | 99942_Apophis.aed |
| Data File Date | 2006-07-19 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
|
|
Home