Scientists estimate that the DART impact displaced more than a thousand tons of dusty rock into space. Photo: Europa Press
The impact of the DART spacecraft that changed orbit From asteroid Dimorphos More than a thousand have been displaced tons From pebble To enough room to fill 6 or 7 freight train cars.
Ago boat outer space Arrow (Double Asteroid Reorientation Test) of Container deliberately collided with Lunar asteroid Dimorphos On September 26 – changing its orbit in 33 minutes – the research team was studying Ramifications How can this technique be used Planetary defense In the future, if needed. This involved a more detailed analysis of the “ballistics” – many tons asteroid rock displaced and met outer space by impact – whose recoil greatly increased thrust Arrow against Dimorphic.
continuity Notes of advanced bombers allowed for equipment From Research They better understand what boat outer space Arrow I got a place Effect. Team members Arrow offered a Preliminary explanation of the results obtained during Autumn meeting affiliate American Geophysical Union in Chicago.
What can we learn from Dart mission which is part of a job worldwide affiliate Container To understand asteroids and others small bodies we’ve got Solar SystemTom Statler, a scientist at Dart program at headquarters Container in Washingtonand one of the speakers at the briefing. effect with asteroid It was just the beginning. Now we use observations to study what these objects are made of and how they were formed, as well as how they were formed defend our planet In the case of a asteroid We’re heading on our way.”
a The basic age From this effort are the details Scientific analysis Based on engineering After, after Effect from the first data proof Globalism From technology From Planetary defense. In the weeks following the impact, the scientists focused on measuring impulse transmission affiliate collision From Arrow with him Asteroid target At a rate of approximately 22,530 kilometers per hour.
Scientists calculate that Effect From Arrow moved over into space A ton of dusty rock, enough to fill six or seven railway cars. The team uses this data – as well as new information about Composition of the asteroid moon and properties ejaculateobtained from Telescopic notes and photos Italian CubeSat Light take pictures From asteroids (Liciacube), which he introduced Italian Space Agency (ASI) – to see how much you have moved asteroid initial impact Arrow And how much it was due to backtracking.
said Andy Rifkin, co-leader of equipment From Research Arrow In the Lab From Johns Hopkins Applied Physics (APL). Study the ejaculation produced In the kinetic effect – All of them are derived from Dimorphic– is an essential way to obtain more information about the nature of its surface.”
Observations made before and after Effect reveal it Dimorphic so is it asteroid Larger Didymusthey have one similar constitution It consists of same articlethat have been linked to Normal chondritesimilar to the most common type of meteor that Effect against Earth. These measurements also made use of ballistics Dimorphicwhich dominated the light reflected from the system in the days after the collision. So far, the Telescopic photos From the system Didymus Show how pressure affiliate solar radiation The stream of projectiles extended into a stream-like tail Kite Tens of thousands of kilometers.
The ejected material helped move the asteroid
Putting all these pieces together and making assumptions Didymus s Dimorphic They have the same thing densitiesWhen , the team calculates that the impulse has moved Arrow collided Dimorphic It was approximately 3.6 times larger than if it were asteroid It would have simply sucked the ship in and not produced any projectile, indicating that the projectile contributed to move the asteroid over ship.
Accurate prediction of momentum transfer is crucial for planning ahead The kinetic impact taskif necessary, incl Determine the size of the spacecraft shocking and quantitative estimate necessary time for to guarantee What a little deviation Change your path to Potentially dangerous.
“Momentum transfer is one of the most important things we can measure, because it’s the information we need mission development collider that He is distracted by a threatening asteroidsaid Andy Cheng, head of the research team Arrow From Johns Hopkins APL. Understanding how the impact of a spacecraft will change the momentum of a spacecraft asteroid It is the key to file design strategy From mitigation for a scenario Planetary defense“.
Neither Dimorphic Neither Didymus I assume Risk some to Earth before or after a controlled collision Arrow with Dimorphic.
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