Jump to content




Welcome to Unexplained Mysteries! Please sign in or create an account to start posting and to access a host of extra features.


- - - - -

Near-Earth asteroid 2012 DA14 [merged x6]

asteroids neo 2012 da14

  • Please log in to reply
57 replies to this topic

#31    Frank Merton

Frank Merton

    Blue fish

  • Member
  • 14,373 posts
  • Joined:22 Jan 2013
  • Gender:Male
  • Location:Ho Chi Minh City, Vietnam

  • fmerton.blogspot.com

Posted 05 February 2013 - 06:34 AM

View Postpallidin, on 05 February 2013 - 05:28 AM, said:

Seems to be a lot of this going on lately(or for a long time I suppose)

Wonder if it's just a matter of time before a good-sized chunk once again slams into Earth.

Ouch...
Yea, its just a matter of time.  The Tunguska event over a city would be a major disaster.


#32    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 05 February 2013 - 11:02 AM


Asteroid 2012 DA14 to Safely Pass Earth

The flyby of asteroid 2012 DA14 on Feb. 15, 2013, will be the closest known approach to Earth for an object its size.

Credit: NASA/JPL-Caltech › Asteroid and Comet Watch site

Source: NASA - Multimedia

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#33    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 05 February 2013 - 11:06 AM


Asteroid 2012 DA14 Flight Path

An animation depicting the trajectory of asteroid 2012 DA14 as it travels within the Earth-moon system on Feb. 15, 2013.

Credit: NASA › Asteroid and Comet Watch site

Source: NASA - Multimedia

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#34    ColoradoParanormal

ColoradoParanormal

    Psychic Spy

  • Member
  • PipPipPipPipPipPipPipPip
  • 1,313 posts
  • Joined:03 Aug 2010
  • Gender:Male
  • Location:Colorado

  • 'Discovery consists of seeing what everybody has seen and thinking what nobody has thought.'

Posted 08 February 2013 - 05:16 PM

Not sure if this has been posted? I looked, but failed to see anything. Thought it was rather interesting that an Asteroid capable of releasing an impact of 2.4 million tons of TNT, or about the same as the Tunguska River impact back in 1908, will be passing closer than ANY previously recorded terrestrial body before. The Asteroid will pass inside our Satellite ring.

Quote

A 150-foot-wide asteroid will come remarkably close to Earth next week, even closer than high-flying communication and weather satellites. It will be the nearest known flyby for an object of this size.


Source:
http://www.9news.com...o-need-to-duck-


#35    CRIPTIC CHAMELEON

CRIPTIC CHAMELEON

    Paranormal Investigator

  • Member
  • PipPipPipPipPipPip
  • 766 posts
  • Joined:27 Feb 2012
  • Gender:Male
  • Location:Annwyn

  • Without going out of my door
    I can know all things of earth
    Without looking out of my window
    I could know the ways of heaven

Posted 08 February 2013 - 08:37 PM

I will have to dust of my scope and hope we have clear skys.  :tu:


#36    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 09 February 2013 - 10:43 AM

View PostColoradoParanormal, on 08 February 2013 - 05:16 PM, said:

Not sure if this has been posted? I looked, but failed to see anything.
It had, yours was the sixth time.

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#37    bison

bison

    Psychic Spy

  • Member
  • PipPipPipPipPipPipPipPip
  • 1,341 posts
  • Joined:13 Apr 2011

Posted 13 February 2013 - 05:25 PM

The Goldstone space radar will repeatedly scan the asteroid 2012 DA14 near the time of its closest approach, on Feb. 16,18, 19, and 20. Resolution will be about 3.75 meters. As the object is about 50 meters is diameter, its general shape, size, and its period of rotation will be observable. Not many surface details are expected to be discerned.
The light from the asteroid varies in a more or less regular way, by about a factor of 2. This suggests that it is probably elongated, and rotating. presenting variously sized aspects to our view. This asteroid appears to be of an uncommon type ( Ld ). It is conspicuously reddish in color.

Edited by bison, 13 February 2013 - 05:33 PM.


#38    bison

bison

    Psychic Spy

  • Member
  • PipPipPipPipPipPipPipPip
  • 1,341 posts
  • Joined:13 Apr 2011

Posted 13 February 2013 - 05:53 PM

An additional note on the diameter of asteroid 2012 DA14---  This was given as 50 meters, plus or minus 25 meters, for some time.   the most recent figure from NASA is 65 meters, apparently with the same margins of error.  That makes it probably about 30% larger than originally thought. This will improve the resolution of surface details on the object; more pixels will fit within the the part of the image containing the asteroid itself.


#39    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 14 February 2013 - 01:15 PM

NASA to Chronicle Close Earth Flyby of Asteroid


www.nasa.gov said:

Posted Image

Diagram depicting the passage of asteroid 2012 DA14 through the Earth-moon system on Feb. 15, 2013. Image credit: NASA/JPL-Caltech    › Larger view


PASADENA, Calif. -- NASA Television will provide commentary starting at 11 a.m. PST (2 p.m. EST) on Friday, Feb. 15, during the close, but safe, flyby of a small near-Earth asteroid named 2012 DA14. NASA places a high priority on tracking asteroids and protecting our home planet from them. This flyby will provide a unique opportunity for researchers to study a near-Earth object up close.

The half-hour broadcast from NASA's Jet Propulsion Laboratory in Pasadena, Calif., will incorporate real-time animation to show the location of the asteroid in relation to Earth, along with live or near real-time views of the asteroid from observatories in Australia, weather permitting.

At the time of its closest approach to Earth at approximately 11:25 a.m. PST (2:25 p.m. EST / 19:25 UTC), the asteroid will be about 17,150 miles (27,600 kilometers) above Earth's surface.

The commentary will be available via NASA TV and streamed live online at: http://www.nasa.gov/ntv and http://www.ustream.tv/nasajpl2

In addition to the commentary, near real-time imagery of the asteroid's flyby before and after closest approach, made available to NASA by astronomers in Australia and Europe, weather permitting, will be streamed beginning at about 9 a.m. PST (noon EST) and continuing through the afternoon at the following website: http://www.ustream.tv/nasajpl2

A Ustream feed of the flyby from a telescope at NASA's Marshall Space Flight Center in Huntsville, Ala., will be streamed for three hours starting at 6 p.m. PST (8 p.m. CST / 9 p.m. EST). To view the feed and ask researchers questions about the flyby via Twitter, visit: http://www.ustream.t...annel/nasa-msfc

The NASA Near Earth Objects (NEO) Program at the agency's headquarters in Washington manages and funds the search, study and monitoring of NEOs, or asteroids and comets, whose orbits periodically bring them close to the Earth. NASA's study of NEOs provides important clues to understanding the origin of our solar system. The objects also are a repository of natural resources and could become waystations for future exploration. In collaboration with other external organizations, one of the program's key goals is to search and hopefully mitigate potential NEO impacts on Earth. JPL conducts the NEO program's technical and scientific activities.

For more information, including graphics and animations showing the flyby of 2012 DA14, visit: http://www.nasa.gov/asteroidflyby

For more information about asteroids and near-Earth objects, visit: http://www.jpl.nasa.gov/asteroidwatch


DC Agle 818-393-9011
Jet Propulsion Laboratory, Pasadena, Calif.
agle@jpl.nasa.gov

Steve Cole 202-358-0918
NASA Headquarters, Washington
stephen.e.cole@nasa.gov

2013-059b



Posted Image Source


"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#40    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 14 February 2013 - 07:12 PM

Near-Earth Asteroid Makes Preview Appearance


www.nasa.gov said:

Posted Image

This animated set of three images depicts asteroid 2012 DA14 as it was seen on Feb. 14, 2013, at a distance of 465,000 miles (748,000 kilometers). Image credit: LCOGT/Faulkes     › Full image and caption


This image from D. Herald of<br />
Murrumbateman, Australia, shows the<br />
asteroid 2012 DA14 as a tiny speck<br />
in the center of the field of view.<br />
Image credit: D. Herald   <br />
<a href='http://www.nasa.gov/mission_pages/asteroids/multimedia/asteroid2012da14b.html' class='bbc_url' title='External link' rel='nofollow external'>› Full image and caption</a>
This image from D. Herald of
Murrumbateman, Australia, shows the
asteroid 2012 DA14 as a tiny speck
in the center of the field of view.
Image credit: D. Herald  
› Full image and caption
Like trailers for the coming attraction, new images show asteroid 2012 DA14 on its way to a record-close approach to Earth on Feb. 15. One image, taken by amateur astronomer Dave Herald of Murrumbateman, Australia, on Feb. 13, shows the asteroid as a tiny white dot in the field of view. Another set of animated images, obtained by the Faulkes Telescope South in Siding Springs, Australia, on Feb. 14, and animated by the Remanzacco Observatory in Italy, shows the asteroid as a bright spot moving across the night sky

These are some of many images that may be taken of the asteroid during its close - but safe - encounter with Earth. It will be observed by numerous optical observatories worldwide in an attempt to determine its rough shape, spin rate and composition. NASA scientists will use NASA's Goldstone Solar System Radar, located in California's Mojave Desert, to take radar images of the asteroid to determine its precise size and shape on Feb. 16, 18, 19 and 20. The NASA Near Earth Object Observation (NEOO) Program will continue to track the asteroid and predict its future orbit.

Asteroid 2012 DA14 is about 150 feet (45 meters) in diameter. It is expected to fly about 17,200 miles (27,000 kilometers) above Earth's surface at the time of closest approach, which is about 11:25 a.m. PST (2:25 p.m. EST) on Feb. 15. This distance is well away from Earth and the swarm of low Earth-orbiting satellites, including the International Space Station, but it is inside the belt of satellites in geostationary orbit (about 22,200 miles, or 35,800 kilometers, above Earth's surface.) The flyby of 2012 DA14 is the closest-ever predicted approach to Earth for an object this large.

The NASA Near Earth Object Observation (NEOO) Program detects and tracks asteroids and comets passing close to Earth using ground- and space-based telescopes. 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.

The Near-Earth Object Program Office at JPL manages the technical and scientific activities for NASA's Near-Earth Object Observation Program of the Science Mission Directorate in Washington. JPL is a division of the California Institute of Technology in Pasadena. 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.

More information is available at: http://www.nasa.gov/...eroidflyby.html .

DC Agle 818-393-9011
Jet Propulsion Laboratory, Pasadena, Calif.
agle@jpl.nasa.gov

2013-060



Posted Image Source


"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#41    keithisco

keithisco

    Majestic 12 Operative

  • Member
  • 6,051 posts
  • Joined:06 May 2007
  • Gender:Male
  • Location:Rincon de Loix, Benidorm

Posted 14 February 2013 - 08:48 PM

I am really miffed because I will be flying from Munich to Palma de Mallorca at the sam e time as closest approach!! Should I be on Port or Starboard of the plane? I have a pretty good pair of Binoculars for the event...


#42    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 14 February 2013 - 11:49 PM

Possible Seismic Activity on Asteroid 2012 DA14


science.nasa.gov said:

Feb. 14, 2013: For eons, Earth has felt the tremors of asteroids striking our planet. From the extinction of the dinosaurs 65 million years ago to the felled forests around Tunguska in 1908, the space rocks keep coming.

This week, Earth strikes back. When asteroid 2014 DA14 makes a record close approach to our planet on Feb. 15th, the space rock could be the one feeling tremors.  

New research by Richard Binzel, a professor of planetary science at MIT, suggests that many near-Earth asteroids experience a seismic jolt when they pass too close to our planet’s gravitational field.

"We are going to be looking closely for evidence of seismic activity on 2014 DA14 as it passes by," says Binzel. "This is the first case of an object coming close enough to experience quakes AND where we have enough notice to plan observations."

NASA's 70-meter diameter Goldstone<br />
radar will be observing 2012 DA14.<br />
[<a href='http://echo.jpl.nasa.gov/' class='bbc_url' title='External link' rel='nofollow external'>more</a>]
NASA's 70-meter diameter Goldstone
radar will be observing 2012 DA14.
[more]
Binzel first began to entertain the idea of asteroid-quakes a few years ago when he was pondering a mystery about near-Earth asteroids:

"As asteroids move through space, they slowly turn dark-red.  This phenomenon, called 'space weathering', is caused by long exposure to cosmic rays and solar radiation. For decades, however, we have known about a handful of small asteroids that looked [light and fresh]; they were not space weathered."

How did this group of space rocks avoid space weathering?    To solve the mystery, Binzel and colleagues calculated the asteroids' orbits and found a telling clue: They all had very close encounters with Earth in the past million years.

"We believe they were 'shaken up' by their encounters with Earth," he says. "Gravitational forces during the flybys can stretch, rattle, and torque these asteroids, causing dark, space-weathered material on the surface to be overturned, revealing the fresh stuff underneath."

There is no Richter Scale for asteroids.  Instead, Binzel expresses the force of the quakes in units of gravitational acceleration, or gees.  1 g = the acceleration due to gravity on Earth's surface. "These asteroids experience [seismic activity] in the milli- to micro-g range," he says.  "That might not sound like much, but remember these are small bodies.  Gravity is not very strong, so just a little shaking or stretching goes a long way."

Binzel imagines what an astronaut floating alongside such an asteroid might see: "The surface could slowly sway or rock by a few centimeters. Other things to look for would be puffs of asteroid-dust rising from the surface and gentle avalanches on the steepest slopes of craters." In rare cases, "rubble pile" asteroids might break apart during the encounter and then re-form as Earth recedes into the distance.
On February 15th, 2012 DA14 will thread the gap between Earth and the belt of geosynchronous satellites that orbits our planet.  At closest approach, the 50-meter space rock will be just 17,200 miles above Earth's surface, a prime target for radars and telescopes.

MIT postdoc Nick Moskovitz, who works with Binzel, is coordinating observations with worldwide observatories to pin down the color, spin, shape, and reflectivity of the asteroid as it passes by.  Changes in any of these quantities might be a sign of a quake.  Participating telescopes include La Palma in the Canary Islands, the Siding Spring and Perth observatories in Australia, Mt John in New Zealand, Mt Canopus in Tasmania, WISE in Israel, and the Clay Center Massachusetts.

Also, NASA's Goldstone radar will be pinging 2012 DA14.  The radar data can be used to create 3D movies showing the space rock from all sides.  Goldstone might be the first to capture an asteroid-quake in action.

"We stand to learn a lot from the observations," says Binzel.
Let the flyby begin.

For more information about 2012 DA14 and other asteroids of interest, visit NASA’s Near-Earth Object Program web site: http://neo.jpl.nasa.gov


Author: Dr. Tony Phillips |Production editor: Dr. Tony Phillips | Credit: Science@NASA



Posted Image Source


"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#43    Waspie_Dwarf

Waspie_Dwarf

    Space Cadet

  • 32,170 posts
  • Joined:03 Mar 2006
  • Gender:Male
  • Location:Bexleyheath, Kent, UK

  • We are all in the gutter, but some of us are looking at the stars.

    Oscar Wilde

Posted 15 February 2013 - 01:04 AM


Asteroid 2012 DA14 To Whiz Past Earth Safely

The small near-Earth asteroid 2012 DA14 will pass very close to Earth on Feb. 15, 2013. Asteroid 2012 DA14 will be closest to Earth at about 11:24 a.m. PST (2:24 p.m. EST and 1924 UTC), on Feb. 15, when it will be at a distance of about 27,700 kilometers (17,200 miles) above Earth's surface. 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. Nevertheless, the flyby will provide a unique opportunity for researchers to study a near-Earth object up close.

Credit: NASA

Source: NASA - Multimedia

"Space is big. Really big. You just won't believe how vastly, hugely, mind-boggingly big it is. I mean, you may think it's a long way down the street to the chemist, but that's just peanuts to space." - The Hitch-Hikers Guide to the Galaxy - Douglas Adams 1952 - 2001

Posted Image
Click on button

#44    justcalmebubba

justcalmebubba

    Ectoplasmic Residue

  • Member
  • Pip
  • 229 posts
  • Joined:16 Feb 2012
  • Gender:Male
  • Location:frankston texas

  • there are many things that bump along in the nite but there are sum of us that bump back

Posted 15 February 2013 - 11:34 AM

in my experence  when the gov says  it's not going to hurt.... lmao yep your gona hurt  so with this  they saying its a  O chance of it b**** slaping us   yeah aummm wanta lie to me sum more there  what to do make popcorn get the biggest grease driping  triple beacon cheese burger  an ice cold beer and sit under a pine tree and enjoy it hell come saturday morning  might just be eating dirt for breakfest  any way got a good seat here picked out in arkansas  if you or i dont get to laugh at this next week  good luck and god speed


#45    Abramelin

Abramelin

    -

  • Member
  • 18,110 posts
  • Joined:07 May 2005
  • Gender:Male
  • Location:"Here the tide is ruled, by the wind, the moon and us."

  • God created the world, but the Dutch created the Netherlands

Posted 15 February 2013 - 12:32 PM

View Postjustcalmebubba, on 15 February 2013 - 11:34 AM, said:

in my experence  when the gov says  it's not going to hurt.... lmao yep your gona hurt  so with this  they saying its a  O chance of it b**** slaping us   yeah aummm wanta lie to me sum more there  what to do make popcorn get the biggest grease driping  triple beacon cheese burger  an ice cold beer and sit under a pine tree and enjoy it hell come saturday morning  might just be eating dirt for breakfest  any way got a good seat here picked out in arkansas  if you or i dont get to laugh at this next week  good luck and god speed

You mean all astronomers and all amateur astronomers around the world are in some conspiracy to hide the truth for us?

You think that is likely?

,

Edited by Abramelin, 15 February 2013 - 12:33 PM.






0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users