NASA’s new ‘Intruder Alert’ system spots an incoming asteroid

October 2016 SPACEA large space rock is going to come fairly close to Earth later tonight. Fortunately, it’s not going to hit Earth, something astronomers are sure of thanks in part to a new tool NASA is developing for detecting potentially dangerous asteroids. The tool is a computer program called Scout, and it’s being tested at NASA Jet Propulsion Laboratory in Pasadena, Calif. Think of Scout as a celestial intruder alert system. It’s constantly scanning data from telescopes to see if there are any reports of so-called Near Earth Objects. If it finds one, it makes a quick calculation of whether Earth is at risk, and instructs other telescopes to make follow-up observations to see if any risk is real.
NASA pays for several telescopes around the planet to scan the skies on a nightly basis, looking for these objects. “The NASA surveys are finding something like at least five asteroids every night,” says astronomer Paul Chodas of JPL. But then the trick is to figure out which new objects might hit Earth. “When a telescope first finds a moving object, all you know is it’s just a dot, moving on the sky,” says Chodas. “You have no information about how far away it is. The more telescopes you get pointed at an object, the more data you get, and the more you’re sure you are how big it is and which way it’s headed. But sometimes you don’t have a lot of time to make those observations. Objects can come close to the Earth shortly after discovery, sometimes one day, two days, even hours in some cases,” says JPL’s Davide Farnocchia. “The main goal of Scout is to speed up the confirmation process.”
The rock whizzing past Earth tonight was discovered on the night of Oct. 25-26 by the NASA-funded Panoramic Survey Telescope & Rapid Response System (Pan-STARRS) on Maui, Hawaii. Within a few hours, preliminary details about the object appeared on a web page maintained by the Minor Planet Center at the Smithsonian Astrophysical Observatory. Scout did a quick analysis of the preliminary details and determined that the object was headed for Earth, but would miss us by about 310,000 miles.


Additional observations by three telescopes, one operated by the Steward Observatory, another called Spacewatch, and a third at the Tenagra Observatories, confirmed the object would miss Earth by a comfortable margin. Astronomers were also able to estimate the size of the object: somewhere between 5 meters and 25 meters across. In case you’re interested, full details about the object’s trajectory can be found here. Scout is still in the testing phase. It should become fully operational later this year. Now Scout is mainly dealing with smallish, very nearby objects. Complementing Scout is another system which is already operational called Sentry.
Sentry’s job is to identify objects large enough to wipe out a major city that might hit Earth in the next hundred years. “Our goal right now is to find 90 percent of the 140 meter asteroids and larger,” says Chodas, but right now he estimates they’re only able to find 25-30 percent of the estimated population of objects that size. That number should get better when a new telescope being built in Chile called the Large Synoptic Survey Telescope comes on line. NASA is also considering a space telescope devoted to searching for asteroids. OK, so let’s say you find one of these monster rocks heading for Earth. What then? Astronomer Ed Lu says there is something you can do. He’s CEO of an organization called B612. It’s devoted to dealing with asteroid threats.
“If you know well in advance, and by well in advance I mean 10 years, 20 years, 30 years in advance which is something we can do, “ says Lu, “then you can divert such an asteroid by just giving it a tiny nudge when it’s many billions of miles from hitting the Earth.” NASA and the European Space Agency are developing a mission to practice doing just that. Lu says in the last decade people who should worry about such things have begun to make concrete plans for dealing with dangerous asteroids. “I believe in the next 10 to 15 years we’ll actually be at the point where we as humans can say, ‘Hey, we’re safe from this danger of large asteroids hitting the Earth,’” he says. In the meantime, we’ll just have to hope that luck is on our side.  –NPR

TEP Radio

This entry was posted in Earth Changes, Earth Watch, Fireballs, Meteor or Asteroid, High-risk potential hazard zone, Meteor or Asteroid, Potential Earthchange hotspot, Prophecies referenced, Space Watch, Time - Event Acceleration. Bookmark the permalink.

4 Responses to NASA’s new ‘Intruder Alert’ system spots an incoming asteroid

  1. charking1946 says:

    It looks like this asteroid is 1.3 lunar distances so its a big miss… closer than many but still a very safe distance. If you are interested in checking out the NEAR EARTH OBJECTS List for the next couple of months.. This is it… Near Earth Asteroids
    Potentially Hazardous Asteroids (PHAs) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the known PHAs is on a collision course with our planet, although astronomers are finding new ones all the time.
    On October 31, 2016 there were 1739 potentially hazardous asteroids.
    Notes: LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual magnitude of the asteroid on the date of closest approach.
    If you go to and scroll down it will show you the Near Earth Asteroids which will be passing in our vicinity through November 28th.
    Lots of asteroids on the 30-31st of October The asteroid you were speaking about is called…
    There is one tonight called 2016 UQ5 it will pass on the 30th at 13.9 LD and is 44 meters in size
    I think they meant the one tomorrow.
    This one is a bit close… but remember LD- LD means “Lunar Distance.” 1 LD = 384,401 km, the distance between Earth and the Moon.
    2016 UR36 the date will be October 31 it will pass within 1.3 LD of Earth and is 13 meters in size
    We have another three on the 31st..
    2016TB57 it will pass on the 31st, within 5.2 LD and is 26 meters in size
    2016UP36 it will pass on the 31st within 5 LD and is 28 meters in size
    This one I am grateful its going to be 13LD from us.. this is a Big One.
    2016YT1 it will pass on the 31st within 13.5 LD and is 850 meters in size


  2. I guess it isn’t our time yet but some day something like this will hit the planet and that will be it for all humanity…


  3. Yellow Bird says:

    woah, alvin… that ford focus advert…


  4. tonic says:

    A commenter (that I love) on here years ago once said to me “tonic, these are signs”|
    And who am I to question Niebo?


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