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NASA will target a DART at target Asteroid in upcoming deflection tests

Telescopes and spacecraft are already looking at the forest for potentially dangerous asteroids, but what can one do to actually deflect a dangerous object on its way to earth? On May 1, the audience of the [6459005] 6th International Academy of the Space Defense Planetary Defense Conference heard more than a dozen presentations related to an upcoming test to tie an asteroid and the potential follow-up mission that would see the results close. The upcoming mission, called Double Asteroid Redirection Test (DART), sends a spacecraft crashing into an object that is typical of the size of the asteroids that can pose a threat to the earth. According to NASA, nearly one-sixth of the known near-earth asteroids (NEA) are multi-body or binary systems, and DART will travel to such a system to perform its mission. Related: Pictures: Potentially dangerous asteroids Overall objectives of the mission &#821 1; which will carry out its crash test in about two years – are to measure what future tools that can successfully divert circulation of a potentially dangerous asteroid. The Mission is led by Johns Hopkins University Applied Physics Laboratory (JHU / APL) and managed by the Planetary Missions Program Office at the Marshall Space Flight Center for NASA's Planetary Defense Coordination Office . DART will travel to the binary asteroid system 65803 Didymos and slam into the smaller of the two objects, also known as Didymoon or Didymos B. The two stones can get another terrestrial visitor after DART. Space Agency suggests a mission…

Telescopes and spacecraft are already looking at the forest for potentially dangerous asteroids, but what can one do to actually deflect a dangerous object on its way to earth?

On May 1, the audience of the [6459005] 6th International Academy of the Space Defense Planetary Defense Conference heard more than a dozen presentations related to an upcoming test to tie an asteroid and the potential follow-up mission that would see the results close.

The upcoming mission, called Double Asteroid Redirection Test (DART), sends a spacecraft crashing into an object that is typical of the size of the asteroids that can pose a threat to the earth. According to NASA, nearly one-sixth of the known near-earth asteroids (NEA) are multi-body or binary systems, and DART will travel to such a system to perform its mission.

Related: Pictures: Potentially dangerous asteroids

Overall objectives of the mission &#821

1; which will carry out its crash test in about two years – are to measure what future tools that can successfully divert circulation of a potentially dangerous asteroid. The Mission is led by Johns Hopkins University Applied Physics Laboratory (JHU / APL) and managed by the Planetary Missions Program Office at the Marshall Space Flight Center for NASA’s Planetary Defense Coordination Office .

DART will travel to the binary asteroid system 65803 Didymos and slam into the smaller of the two objects, also known as Didymoon or Didymos B. The two stones can get another terrestrial visitor after DART. Space Agency suggests a mission called Hera to explore Didymos and, along with the first two European cubes to enter deep space, learn about the success of DART influence. [19659002] Didymos is approximately 2540 meters wide, and Didymoon measures 540 feet (165 m) above.

The mission’s launch window is now slated to open in July 2021 according to DART Project Manager Cheryl Reed. on May 1, as curre nt estimates suggest that the spacecraft will carry a mass of 1 244 kg. (555 kilos) and will reach a final speed of 14,900 km / h before entering Didymoon 2022.

The spacecraft uses the “kinetic percussion” technique to beat Didymoon and change the asteroid movement. (The probe will not use any explosives.)

Simulated image of the Didymos system, based on photometric light curve and radar data. The primary body is about half a mile (800 meters) in diameter and the moonlet, called Didymoon or Didymos B, is about 492 feet (150 meters) above.

(Image: © Naidu et al., AIDA Workshop, 2016 via NASA)

An element of this collision that several researchers touched on the conference was how much material was ejected from the asteroid after the space ship hit would contribute to increasing deflection – momentum enhancement factor, known as beta . Research groups work with 2D and 3D models to better understand how Didymon’s composition, surface material or DART’s impact angle would affect deflection.

The Hera mission will receive a final full financing decision in November 2019. If it gets the green light, Hera and its two cubes, APEX and Juventas, will make a series of measurements, observing the shape of the DART battle crater, Didymon’s mass, density and porosity of the asteroid and more.

Follow Doris Elin Salazar on Twitter @salazar_elin . Follow us on Twitter @Spacedotcom and on Facebook .

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