Asteroid DA14 misses Earth in close fly-by | Science | homework-help.us
The 45 meter asteroid DA14 will pass closer to Earth than Bill Nye and I did a (one hour) webcast including guest JPL's Paul Chodas. An asteroid, called DA14, will come within miles of Earth on Feb. It will safely miss, but scientists urge we make plans to. This does not rule out an impact at some future date, but for now we're safe. The homework-help.us article even comes right out and says "NASA confirms L'asteroide DA14 non colpirà la Terra «Query Online | March 13,
Their observations were reported to the NASA funded Minor Planet Center, operated by the Smithsonian Astrophysical Observatory for the International Astronomical Union, where all observations from observatories worldwide are combined to maintain the database on all known asteroids and comets in our solar system.
Asteroid Makes Close Call: 2012 DA14 to Pass Earth Feb. 15
How many asteroids are out there similar in size to asteroid DA14? Scientists believe there are approximatelynear-Earth asteroids the size of DA Of those, less than one percent have been discovered. How many times do asteroids the size of DA14 fly this close? Is there a chance that asteroid DA14 will collide with one or more satellites? There is very little chance that asteroid DA14 will impact a satellite or spacecraft. There are almost no satellites orbiting at the distance at which the asteroid will pass.
The gravitational influence upon Earth and its inhabitants by the flyby of asteroid DA14 will be infinitesimally small. What would happen if DA14 were to impact Earth? Asteroid DA14 will not impact Earth, but if another asteroid of a size similar to that of DA14 about feet across were to impact Earth, it would release approximately 2.
A comparison to the impact potential of an asteroid the size of DA14 could be made to the impact of a near-Earth object that occurred in in Tuguska, Siberia. Can I see the asteroid during its close approach? Asteroid DA14 is small, so even though it will make a close flyby of Earth, the asteroid's apparent magnitude is expected to peak at about only 7. To view the asteroid, you will need a good pair of binoculars, or even better, a moderately powered telescope.
During the closest approach, and dependant on local weather, the asteroid will be visible from parts of Europe, Africa and Asia. The asteroid will appear to be moving relatively quickly as it crosses the sky from the south to the north.
As there is no chance of impact, there is nothing that needs to be done about the asteroid. However, the flyby of DA14 is a great opportunity for science.
Due to the asteroid's small size, the radar images generated are expected to be no more than a few pixels across.
It will also be observed by numerous optical observatories worldwide to attempt to determine its spin rate and composition. NASA has several ongoing programs regarding asteroid discovery and science.
The network of projects supported by this program, commonly called "Spaceguard," discovers these objects, characterizes a subset of them and plots their orbits to determine if any could be potentially hazardous to our planet.
All observations from observatories worldwide are sent to the NASA funded Minor Planet Center, operated by the Smithsonian Astrophysical Observatory for the International Astronomical Union, where they are combined to maintain the database on all known asteroids and comets in our solar system.
The NEOO Program Office performs more precise orbit determination on the objects, and predicts whether any will become an impact hazard to the Earth, or any other planet in the solar system.
The antenna is one of only two facilities capable of imaging asteroids with radar. The Arecibo radar is about 20 times more sensitive, can see about one-third of the sky, and can detect asteroids about twice as far away. Goldstone is fully steerable, can see about 80 percent of the sky, can track objects several times longer per day, and can image asteroids at finer spatial resolution.
NASA has also started several basic research and technology demonstration projects to better understand the nature of asteroids and how they might best be deflected from an Earth impacting trajectory, or to develop the space technology required to do this. This development work includes improved Solar Electric Propulsion SEP systems that could push or pull an asteroid for an extended time, and close proximity operations and grappling mechanisms to work in and around asteroids and manipulate their surfaces.
This technology will also be useful for future robotic and human missions to these objects, and even potentially resource mining operations. NASA has one asteroid mission underway and another slated for launch in These two worlds are the two most massive objects in the main asteroid belt.
NASA - Asteroid DA14 – Earth Flyby Reality Check
The main asteroid belt is the likely region of origin for most NEAs. At each target, Dawn will acquire color photographs, compile a topographic map, map the elemental and mineralogical composition, measure the gravity field and search for moons.Asteroid 2012 DA14 - NASA Eyes on the Solar System
The data gathered by Dawn will enable scientists to understand the conditions under which these objects formed, determine the nature of the building blocks from which the terrestrial planets formed and contrast the formation and evolution of Vesta and Ceres. Orbital Sciences Corporation of Dulles, designed and built the Dawn spacecraft. NASA scientists also ruled out that this asteroid is related to the meteorite that dramatically crashed into Russia this morning.
Russians Upload Amazing Footage of Meteor Blast and Aftermath While asteroids whiz by our planet all the time, scientists are particularly interested in DA14 because it marks the closest flyby of an asteroid its size that we've ever known about in advance. Amateur astronomers in Spain discovered this asteroid, which will come closer to Earth than some of our own satellites, in February Lucky skywatchers in parts of Europe, Asia, Africa and Australia may be able to see the asteroid with amateur equipment, such as a small telescope or binoculars.
However, the Western Hemisphere will miss out on this chance because of the daylight. However, there are plenty of ways to watch the asteroid flyby live online. Here are a few that we rounded up. The video feed will start at 2 p. EST, about a half hour before the asteroid is at its closest approach. Video and Talk Show: Starting at 1 p. EST, the astronomers will host a live video show on its website.