Aten asteroids

(33342) 1998 WT24 ((33342) 1998 WT₂₄, also written (33342) 1998 WT24) is an Aten asteroid located in Venus' zone of influence that has frequent close encounters with Mercury, Venus, and Earth. It is also one of the best studied potentially hazardous asteroids. ...more on Wikipedia about "(33342) 1998 WT24"

(also written (66391) 1999 KW4) is an Aten and Mercury-crosser asteroid discovered by LINEAR in 1999. It is interesting for two reasons. ...more on Wikipedia about "(66391) 1999 KW4"

(99907) 1989 VA is an Aten_asteroid located in Venus' zone of influence that has frequent close encounters with the Earth. It was discovered on November 2, 1989 by C. S. and E. M. Shoemaker at Mount Palomar and was the eighth Aten asteroid discovered. ...more on Wikipedia about "(99907) 1989 VA"

(also written 1998 DK36) is possibly the first Apohele asteroid (asteroid that is always closer to the Sun than Earth) detected. It was discovered by David J. Tholen, but is now considered lost and does not appear in authoritative catalogs. While its orbital elements have not been well established, its aphelion (farthest distance from Sun) was determined to be less than the Earth's distance to the Sun. Therefore, it has a claim to title "first Apohele detected", if not "first Apohele confirmed", which goes to . ...more on Wikipedia about "1998 DK36"

An asteroid discovered by LINEAR in January of 2000, 2000 BD19 (2000 BD₁₉, also written 2000 BD19) was soon after located by DANEOPS on Palomar plates from February 10, 1997. This allowed a reasonably precise orbit determination, and as a result it was spotted again on February 27, 2001 and January 21, 2002. 2000 BD19 has the closest perihelion of any known asteroid (as of July 2004), at 0.092 AU —38% of Mercury's orbital radius. That and its high eccentricity (0.895) and inclination (25.7°), seem to indicate an inactive or extinct comet. It hasn't been caught displaying cometary activity so far. ...more on Wikipedia about "2000 BD19"

Asteroid ( also written 2002 AA29) is a near-Earth asteroid discovered in January 2002 by the LINEAR asteroid survey. The asteroid follows a " horseshoe orbit" that makes it come near the Earth every 95 years as it follows Earth's orbit around the Sun and will, in nearly 600 years, appear to orbit the planet. It measures about 60 metres across. ...more on Wikipedia about "2002 AA29"

Discovered February 11, 2003, by the Lincoln Near-Earth Asteroid Research project's station at Socorro, New Mexico, (also written 2003 CP20), was the first asteroid known to have an orbit entirely within that of Earth. Together with , which has an even smaller orbit, it forms a subclass of Aten asteroids, known as Apoheles. takes slightly over 233 days to orbit the Sun. is a Venus-crosser asteroid, but does not get as close to the Sun as Mercury. With a diameter of about 2 km, it is the larger of the two known Apoheles and is one of the larger Aten asteroids. ...more on Wikipedia about "2003 CP20"

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(also written 2003 YN107) is a very small Near-Earth object. It was discovered by the Lincoln Near Earth Asteroid Research (LINEAR) system in orbit around the Sun on December 20, 2003. Its diameter is approximately 10 to 30 metres, which technically makes it a meteoroid rather than an asteroid (which are arbitrarily considered to have a diameter of 50 m or bigger). is on NASA's Earth Close Approach list, and is estimated to miss the Earth by 0.0599 AU. ...more on Wikipedia about "2003 YN107"

2004 FH is a near-Earth asteroid that was discovered on March 15, 2004 by the NASA-funded LINEAR asteroid survey. The object is roughly 30 metres in diameter and passed just 43,000 km above the Earth's surface on March 18, 2004 at 22:08 UTC; making it the second closest approach to Earth ever recorded at the time (see the diagram below). For comparison, geostationary satellites orbit Earth at 35,790 km. ...more on Wikipedia about "2004 FH"

(also written 2004 FU162) is a meteoroid which passed within about one Earth radius of the surface of the Earth at 15:35 UTC on March 31 2004, or 2.02 Earth radii from the centre of the Earth. This set a record for the closest known approach to date. The discovery was not announced until August 22, 2004. ...more on Wikipedia about "2004 FU162"

(also written 2004 JG6) is an unusual asteroid. ...more on Wikipedia about "2004 JG6"

2062 Aten is an asteroid that was discovered at the Palomar Mountain Observatory by Eleanor F. Helin, who is now the principal scientist for the NEAT (Near-Earth Asteroid Tracking) project. Aten was the first asteroid found to have a semi-major orbital axis of less than one astronomical unit. A new category of asteroids was thus created, the Atens, of which 16 are known and numbered, and some 212 awaiting numbering as of July 2004, ranging from (99907) 1989 VA to 2004 MD6. ...more on Wikipedia about "2062 Aten"

The asteroid 2100 Ra-Shalom was discovered in 1978 by Eleanor F. Helin. It was the second asteroid in the Aten class, after the discovery of 2062 Aten in 1976, also by Helin. The Atens have a semi-major axis of less than 1 AU; of the Atens, Ra-Shalom is one of the asteroids with the smallest semi-major axes: just 0.832 AU. ...more on Wikipedia about "2100 Ra-Shalom"

3554 Amun is an M-type Aten asteroid and Venus-crosser. It was discovered on 4 March, 1986 by Carolyn and Eugene Shoemaker at Mount Palomar Observatory. Its estimated diameter is 2.5 kilometres, making it one of the smallest known M-type asteroids. ...more on Wikipedia about "3554 Amun"

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3753 Cruithne (English crew-een'-ya; Modern Irish "crih-na") is an asteroid in orbit around the Sun. It is sometimes described as Earth's "second moon", though this is technically incorrect: its orbit has unusual properties when viewed in relation to the orbit of the Earth (see below), but it is not a satellite of the Earth. ...more on Wikipedia about "3753 Cruithne"

99942 Apophis (previously better known by its provisional designation ) is a Near-Earth asteroid that caused a brief period of concern in December 2004 because initial observations indicated a relatively large probability that it would strike the Earth in 2029. However, additional observations provided improved predictions that eliminated the possibility of an impact on Earth or the Moon in 2029. A future impact on April 13, 2036, is still possible, keeping the asteroid at level 1 on the Torino impact hazard scale as of December 2005, with an estimated impact-probability of 1 in 6,250. ...more on Wikipedia about "99942 Apophis"

The Aten asteroids are a group of near-Earth asteroids, named after the first of the group to be discovered ( 2062 Aten, discovered January 7 1976 by Eleanor F. Helin). They have semi-major axes of less than one astronomical unit, placing them inside the orbit of Earth. ...more on Wikipedia about "Aten asteroid"

This is a list of all numbered Aten asteroids as of June 2005. See also Aten asteroids (category) for a list of all Aten asteroids that have articles. ...more on Wikipedia about "List of numbered Aten asteroids"

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