|
Discovery
|
|
|---|---|
| Discovered by | LINEAR (704) |
| Discovery date | October 5, 2002 |
|
Designations
|
|
| Minor planet category |
Apollo |
| Epoch 2011-Aug-27 (JD 2455800.5) JPL 56 |
|
| Aphelion | 2.8499 AU |
| Perihelion | 0.86573 AU |
| Semi-major axis | 1.8578 AU |
| Eccentricity | 0.53400 |
| Orbital period | 2.53 years |
| Mean anomaly | 152.36° (M) |
| Inclination | 4.9197° |
| Longitude of ascending node | 335.76° |
| Argument of perihelion | 125.59° |
|
Physical characteristics
|
|
| Dimensions | 270-590 meters H |
| Absolute magnitude (H) | 20.2[1] |
2002 TD66 (also written 2002 TD66) is a near-Earth asteroid, discovered on October 5, 2002, by the LINEAR project.[1] It was announced on October 7, 2002, and appeared later that day on the JPL current risk page.
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. In November 2006 there were 823 PHAs known. As of October 2011[update], there are 1261 PHAs known.[2] 2002 TD66 was removed from the Sentry Risk Table on October 10, 2002.[3] A Doppler observation[1] has helped produce a well known trajectory with a condition code (Uncertainty Parameter U) of 0.[1]
The size of 2002 TD66 is not precisely known. Based on its absolute magnitude (H) of 20.2,[1] the object is estimated to be between 270 and 590 meters in diameter.
On February 25, 2008, 2002 TD66 passed 0.04282 AU (6,406,000 km; 3,980,000 mi) from the Earth.[4] The asteroid also comes close to Venus, Mars, and dwarf planet Ceres.[4]
|
||||||||||||||||||||||
