2004 XP14
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- The correct title of this article is 2004 XP14. It features superscript or subscript characters that are substituted or omitted because of technical limitations.
| Discovery A | |
|---|---|
| Discoverer | LINEAR |
| Discovery date | December 10, 2004 |
| Alternate designations B |
|
| Category | Apollo |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.157407 |
| Semi-major axis (a) | 1.05733 AU |
| Perihelion (q) | 0.8909 AU |
| Aphelion (Q) | 1.2238 AU |
| Orbital period (P) | 397 d 3 h |
| Mean orbital speed | |
| Inclination (i) | 32.9294° |
| Longitude of the ascending node (Ω) |
|
| Argument of perihelion (ω) |
|
| Mean anomaly (M) | |
| Physical characteristics D | |
| Dimensions | 300-900 meters H |
| Mass | |
| Density | |
| Surface gravity | |
| Escape velocity | |
| Rotation period | |
| Spectral class | |
| Absolute magnitude | 19.29 |
| Albedo (geometric) | |
| Mean surface temperature |
|
2004 XP14 (also written 2004 XP14) is a near-Earth asteroid, first discovered on December 10, 2004, by the LINEAR project.
Although initially there were concerns that this asteroid might possibly impact Earth later the 21st century and thus merit special monitoring, further analysis of its orbit has since ruled out any such collision, at least in the foreseeable future.
The size of 2004 XP14 is not precisely known. Based on optical measurements, the object is from 300 to 900 meters in diameter.
Due to the proximity of its orbit to Earth and its estimated size, this object has been classified as a "Potentially Hazardous Asteroid" (PHA) by the Minor Planet Center in Cambridge, Massachusetts.
2004 XP14's closest pass by Earth was above the west coast of North America at 04:25 UTC on July 3, 2006.
The asteroid's distance from Earth's center of mass at that moment was 432,308 km (268,624 miles), 0.00289 AU, or just 1.1 times the Moon's average distance from Earth. It was observed immediately after this close approach by radar from three locations, from Goldstone in the Mojave Desert in the USA, from Sicily, and from Eupatoria, Ukraine, as well as optically from other observatories (see [1]).
[edit] External links
- Orbital elements and ephemeris for 2004 XP14 from MPC
