Cosmically speaking, you’re lucky to be alive

…on the 16th of February.

Small near-Earth asteroid 2012 DA14 will pass very close to Earth on February 15, so close that it will pass inside the ring of geosynchronous weather and communications satellites. NASA’s Near-Earth Object Program Office can accurately predict the asteroid’s path with the observations obtained, and it is therefore known that there is no chance that the asteroid might be on a collision course with Earth.

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NASA have added a useful FAQ for us all

Q: How big is asteroid 2012 DA14?  

A: Asteroid 2012 DA14 is currently estimated to be about 150 feet (45 meters) across and has an estimated mass of about 130,000 metric tons. If radar observations of this asteroid are successful, we might have a more accurate estimate of the asteroid’s size after its close approach.

Q: How many times do asteroids the size of DA14 fly this close?

A: Scientists at NASA’s Near-Earth Object Program Office in Pasadena, Calif. estimate that an asteroid the size of 2012 DA14 flies this close every 40 years on average and that one will impact Earth, on average, about once in every 1,200 years.

Q: Is there a chance that asteroid DA14 will collide with one or more satellites?

A: There is very little chance that asteroid 2012 DA14 will impact a satellite or spacecraft. Because the asteroid is approaching from below Earth, it will pass between the outer constellation of satellites located in geosynchronous orbit (22,245 miles/35,800 kilometers) and the large concentration of satellites orbiting much closer to Earth. (The International Space Station, for example, orbits at the close-in altitude of 240 miles/386 kilometers.). There are almost no satellites orbiting at the distance at which the asteroid will pass.

Q: What would happen if DA14 were to impact Earth?

A: Asteroid 2012 DA14 will not impact Earth, but if another asteroid of a size similar to that of 2012 DA14 (about 150 feet across) were to impact Earth, it would release approximately 2.5 megatons of energy in the atmosphere and would be expected to cause regional devastation.

A comparison to the impact potential of an asteroid the size of 2012 DA14 could be made to the impact of a near-Earth object that occurred in 1908 in Tuguska, Siberia. Known in the asteroid community as the “Tunguska Event,” this impact of an asteroid just slightly smaller than 2012 DA14 (approximately 100 – 130 feet/30-40 meters across) is believed to have flattened about 750 square miles (1,200 square kilometers) of forest in and around the Podkamennaya Tunguska River in what is now Krasnoyarsk Krai, Russia.

Q: Can I see the asteroid during its close approach?

A: Asteroid 2012 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 7.4 – too dim to be viewed by the naked eye. 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.

If you have more questions, perhaps you’ll find the answers here.

Here is a NASA press conference from a couple of days ago:

Video streaming by Ustream


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As much at home writing editorials as being the subject of them, Cam has won awards, including the Canon Media Award for his work on the Len Brown/Bevan Chuang story.  And when he’s not creating the news, he tends to be in it, with protagonists using the courts, media and social media to deliver financial as well as death threats.

They say that news is something that someone, somewhere, wants kept quiet.   Cam Slater doesn’t do quiet, and as a result he is a polarising, controversial but highly effective journalist that takes no prisoners.

He is fearless in his pursuit of a story.

Love him or loathe him.  But you can’t ignore him.

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