2013 ET is a
near-Earth asteroid that was first observed on March 3, 2013,
six days before its closest approach to
Earth
Earth is the third planet from the Sun and the only astronomical object known to harbor life. While large volumes of water can be found throughout the Solar System, only Earth sustains liquid surface water. About 71% of Earth's surfa ...
. It is estimated to be around wide.
The orbit of has been connected to 2013 ET extending the
observation arc
In observational astronomy, the observation arc (or arc length) of a Solar System body is the time period between its earliest and latest observations, used for tracing the body's path. It is usually given in days or years. The term is mostly use ...
to 11 years.
Its closest approach to Earth was on March 9, 2013 at 12:09 UT.
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury. In the English language, Mars is named for the Roman god of war. Mars is a terrestrial planet with a thin at ...
and Venus
Venus is the second planet from the Sun. It is sometimes called Earth's "sister" or "twin" planet as it is almost as large and has a similar composition. As an interior planet to Earth, Venus (like Mercury) appears in Earth's sky never f ...
.[ The asteroid was imaged by Goldstone ]radar
Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, we ...
on March 10, 2013.
See also
*List of asteroid close approaches to Earth in 2013
Below is the list of asteroid close approaches to Earth in 2013. This was the year of the Chelyabinsk impact, in addition to the other NEO flybys
Timeline of known close approaches less than one lunar distance from Earth in 2013
A list of know ...
* 2013 EC
* 2013 PJ10
* List of asteroid close approaches to Earth
This is a list of examples where an asteroid or meteoroid travels close to the Earth. Some are regarded as potentially hazardous objects if they are estimated to be large enough to cause regional devastation.
Near-Earth object detection techno ...
* List of Near-Earth asteroids by distance from Sun
This list contains many notable near-Earth asteroids organised by their average distance from the Sun, and includes the planets
A planet is a large, rounded astronomical body that is neither a star nor its remnant. The best available theory o ...
* Near-Earth Asteroid Tracking
Near-Earth Asteroid Tracking (NEAT) was a program run by NASA and the Jet Propulsion Laboratory, surveying the sky for near-Earth objects. NEAT was conducted from December 1995 until April 2007, at GEODSS on Hawaii (Haleakala-NEAT; 566), as we ...
References
External links
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