2004 YD 5
Asteroid 2004 YD 5 |
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Properties of the orbit ( animation ) | |
Orbit type | Apollo type |
Major semi-axis | 2.274 AU |
eccentricity | 0.783 |
Perihelion - aphelion | 0.494 AU - 4.052 AU |
Inclination of the orbit plane | 3.60 ° |
Sidereal period | 3.43 a |
Physical Properties | |
Medium diameter | approx. 5 m |
Absolute brightness | 29.26 mag |
history | |
Explorer | Stan Pope |
Date of discovery | December 21, 2004 |
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. |
2004 YD 5 is an asteroid from the Apollo-type , which was discovered on December 21 of 2004. It has a diameter of about 5 meters and was only spotted at a distance of 35,000 kilometers when it passed near the earth.
YD 5 was discovered in 2004 by Stan Pope of the University of Arizona , who determined through orbital calculations that the closest approach to earth had already taken place on December 19th without being noticed .
Web links
- Visitors from space crept up unnoticed. On: Wissenschaft.de from December 24, 2004
- Small Asteroid Passes Between Satellites and Earth. On: space.com