The highly elongated X-type asteroid has a rotation period of 14.5 hours and measures approximately 0.7 kilometers in diameter. The gaint near-earth object named 163348 (2002 NN4) was discovered in July 2002 and is expected to approach the earth in June 2020. This means that its orbit is relatively close to Earth's orbit. * The moderation of comments is automated and not cleared manually by Copyright © 2020 The Indian Express [P] Ltd. All Rights Reserved Explained: What is 163348 (2002 NN4), the Asteroid that made a close approach to Earth? Based on its brightness and the way it reflects light, 2002 NN4 is Asteroids with a minimum orbit intersection distance (MOID) of about 0.05 (AU is the distance between the Earth and the Sun and is roughly 150 million km), which is about 7,480,000 km or less and an absolute magnitude (H) of 22 (smaller than about 150 m or 500 feet in diameter) or less are considered PHAs.Even so, it is not necessary that asteroids classified as PHAs will impact the Earth. 163348 (2002 NN4) Discovered 2002-Jul-09 by LINEAR at Socorro Reference: 20070926/Numbers.arc Last Updated: 2007-09-30 A Near-Earth Object (NEO), the asteroid is called 163348 (2002 NN4) and is classified as a Potentially Hazardous Asteroid (PHA).NEOs occasionally approach close to the Earth as they orbit the Sun, NASA’s Center for Near-Earth Object Study (CNEOS) determines the times and distances of these objects as and when their approach to the Earth is close.NASA defines NEOs as comets and asteroids nudged by the gravitational attraction of nearby planets into orbits which allows them to enter the Earth’s neighbourhood.
By monitoring these PHAs and updating their orbits as new observations become available, we can better predict the close-approach statistics and thus their Earth-impact threat,” NASA says.2002 NN4 was discovered in July 2002 and is expected to approach the Earth on June 6. Earlier this week, NASA announced that a giant asteroid is expected to pass Earth (at a safe distance) on June 6. The IAU Minor Planet Center records 578 observations used to determine its orbit. Over the years, scientists have suggested different ways to ward off such a hit, such as blowing up the asteroid before it reaches Earth, or deflecting it off its Earth-bound course by hitting it with a spacecraft. The asteroid is estimated to be between 250-570 meters in diameter, according to NASA’s Jet Propulsion Laboratory (JPL). NASA JPL has classified 2002 NN4 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2002 NN4 orbits the sun every 300 days (0.82 years), coming as close as 0.50 AU and reaching as far as 1.26 AU from the sun. The approximation is built for full-resolution desktop browsers. These objects are composed mostly of water ice with embedded dust particles.The scientific interest in comets and asteroids is largely due to their status as relatively unchanged remnant debris from the solar system formation process over 4.6 billion years ago. Numerous reports have suggested that the object known as 163348 (2002 NN4) is headed towards Earth, with the implication that humanity could be at risk. 2002 NN4 has 30 close approaches predicted in the coming decades: 163348 (2002 NN4) is a very small asteroid whose orbit could bring it in close proximity to Earth. By convention, a Solar System body is a NEO if its closest approach to the Sun i.e., perihelion is less than 1.3 astronomical units (AU). 163348 (2002 NN4) is a very small asteroid whose orbit could bring it in close proximity to Earth. 2002 NN4's orbit is determined by observations dating back to July 2, 2002. 2002 NN4's orbit is 0.01 AU from Earth's orbit at its closest point. It completes a rotation on its axis every 14.50 days. 2002 NN4 is a dark, sub-kilometer near-Earth object and potentially hazardous asteroid of the Aten group that flew by Earth on 6 June 2020. Further, no asteroid larger than 140 metre has a “significant” chance of hitting the Earth for the next 100 years, less than half of the estimated 25,000 NEOs that are 140 metres or larger in size have been found to date.This asteroid is classified as a PHA, which means the asteroid has the potential to make threatening close approaches to the Earth. The rotation of 2002 NN4 has been observed. NASA JPL has classified 2002 NN4 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth. The asteroid is estimated to be between 250-570 meters in diameter. The above comparison is an artistic rendering that uses available data on the diameter of 2002 NN4 to create an approximate landscape rendering. It was last officially observed on July 5, 2020.
The position of 163348 (2002 NN4) is indicated by a It was discovered by LINEAR at the Lincoln Laboratory's Experimental Test Site in New Mexico on 9 July 2002. What are Near-Earth Objects (NEOs), why are they studied? Therefore, these NEOs offer scientists clues about the chemical mixture from the planets formed.Significantly, among all the causes that will eventually cause the extinction of life on Earth, an asteroid hit is widely acknowledged as one of the likeliest. A Near-Earth Object (NEO), the asteroid is called 163348 (2002 NN4) and is classified as a Potentially Hazardous Asteroid (PHA). According to SpaceReference.org, 163348 (2002 NN4) is a 'very small' asteroid that has been classified by NASA as 'Potentially Hazardous' due to its predicated close pass with Earth. Given the name rock 163348 (2002 NN4), the space rock is believed to be travelling at a speed of 5.2 km a second or 11,200 miles per hour and will pass by near the Earth's orbit this week NASA’s Near-Earth Object Observations Program finds, tracks and characterises over 90 per cent of the predicted number of NEOs that are 140 metre or larger in size (larger than a small football stadium).NASA maintains that objects of this size and larger pose a risk to Earth of “the greatest concern” due to the level of devastation that the impact is capable of causing.
Shape, color, and texture of asteroid are imagined. 163348 (2002 nn4) Classification: Aten [ NEO, PHA ] SPK-ID: 2163348 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | … Asteroid 2002 NN4 (163348) is expected to whiz past Earth on Saturday, July 6, in what NASA has described as a near-Earth object (NEO) and a potentially hazardous asteroid (PHA). 2002 NN4 orbits the sun every 300 days (0.82 years), coming as close as 0.50 AU and reaching as far as 1.26 AU from the sun.
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