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2012 DA14 WILL hit earth.. Confirmed.

 
Anonymous Coward
User ID: 33964759
United Kingdom
02/08/2013 05:34 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Lol at people thinking this thing is traveling at 10,000km per hour!! Haha!
I wonder how much a large cme from the sun would effect the trajectory of da14 if at all?
PC FREE

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02/10/2013 05:24 AM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
how is it possible for it to pass by 3.5 earth distances when the equator is 24,901.55 miles around,,,now 3.5 times the distance equals 74,704.65 miles. now i know them satellites are not floating at 74,704.65 miles from the earth's surface. now tell me how could it fly inside of the satellites orbit and get sucked in for a strike to earth if they are floating at 74,704 miles from earth ,,,doom canceled till further math can be done. or they quit smoking those left handed cigarettes.
 Quoting: the scientist 33010379


They go by diameter when they measure a single earth distance.Since the earth is 7,928 miles in diameter,3 earth distances would be less than 24,000 miles away.
objective viewer
Halcyon Dayz, FCD
Contrarian's Contrarian

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02/10/2013 12:07 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
Lol at people thinking this thing is traveling at 10,000km per hour!! Haha!
 Quoting: UK Coward 33964759

It's current speed is about 7.8 kilometers/second (28,000 km/h) relative to Earth.
Earth's average orbital speed is 107,200 km/h.

Since this thing orbits the Sun at about the same average distance as Earth does its average orbital speed is about the same.
It is because it is crossing our orbit that the relative speed is much greater than zero.

I wonder how much a large cme from the sun would effect the trajectory of da14 if at all?
 Quoting: UK Coward 33964759

Why wonder if you can calculate.
We know how much matter there typically is in a CME.
We also know how fast it moves.
So an OOM calculation of the amount of kinetic energy it could transfer to this rock should be a nice exercise in applied physics.

Enjoy!
book
Hatred is a cancer upon the world.
It rots the mind and blackens the heart.


Hi! My name is Halcyon Dayz and I'm addicted to morans.
Anonymous Coward
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02/10/2013 01:50 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Just thought i would correct my comment, i ment "lol at the people thinking this thing is traveling at 10,000km per second, not per hour"
it would be real scary if there were rock wizzing round space at 2% the dpeed of light haha
Now that really would cause a tidal wave that would spread across the whole globe!!

Anyone else hear about their being a massive jump in employment for FEMA?

I know nasa have considered making a space craft with a huge sail to ride on the solar wind. So maybe a solar flair could push this object just enough to make it hit us??
CURIOUS PRICK
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02/10/2013 02:05 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
What would happen if this rock hits us?? Game over?? Or just a catastrophic blast?

I'm beginning to worry about this shit....don wanna die now
Sir Griffo
Sir Griffo

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02/11/2013 10:29 AM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
The Pope's last tweet before resigning......

We must trust in the mighty power of God’s mercy. We are all sinners, but His grace transforms us and makes us new.
Anonymous Coward
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02/11/2013 10:58 AM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Bullshit....fear mongering asshole.
Anonymous Coward
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02/12/2013 12:25 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
bump
Anonymous Coward
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02/12/2013 12:33 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
It is a big deal if it did hit earth but the problem with loosing communication could trigger civil unrest and martial law type situations.. People that are not in the loop will not understand.. False rumors cause results.
Anonymous Coward
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02/12/2013 12:58 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
So impact or no? Did they look at the Yarkovsky Effect?
Wisconsin

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02/12/2013 01:02 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
.
Amos 5:13
timelines and Celebrations of Yeshua - [link to www.grafted-promise.net]
Anonymous Coward
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02/12/2013 01:03 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
So impact or no? Did they look at the Yarkovsky Effect?
 Quoting: Anonymous Coward 1018748


Not sure, I am just waiting to see what is said tonight in Obama speech (clues) and then wait and see how this pans out.. Anybody LIVING in this time should have a back up supply for the just in case situation.. Things are really unstable.. No power or communication = crazy people that are tense with guns..
Dr. AstroModerator
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02/12/2013 01:06 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
So impact or no? Did they look at the Yarkovsky Effect?
 Quoting: Anonymous Coward 1018748


Again, the Yarkovsky effect as well as solar radiation pressure are IRRELEVANT over short time spans. It's extremely difficult to even detect even after YEARS of time!
[link to astro.troja.mff.cuni.cz]
"We rather restrict
our analysis to understanding the orbital perturbation induced
by the Yarkovsky effect for the near-Earth asteroids (NEAs)
observed at-present. Obviously, the short time scale involved
( years) must be compensated by very high precision obser-
vations.
"
astrobanner2
Anonymous Coward
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02/12/2013 01:07 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
So impact or no? Did they look at the Yarkovsky Effect?
 Quoting: Anonymous Coward 1018748


Again, the Yarkovsky effect as well as solar radiation pressure are IRRELEVANT over short time spans. It's extremely difficult to even detect even after YEARS of time!
[link to astro.troja.mff.cuni.cz]
"We rather restrict
our analysis to understanding the orbital perturbation induced
by the Yarkovsky effect for the near-Earth asteroids (NEAs)
observed at-present. Obviously, the short time scale involved
( years) must be compensated by very high precision obser-
vations.
"
 Quoting: Dr. Astro


OK, what what about the undetermined, or INCREASE in body size, and gravitational affects?
Anonymous Coward
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02/12/2013 01:08 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
...and could solar winds from flare alter course?
Dr. AstroModerator
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02/12/2013 01:08 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
So impact or no? Did they look at the Yarkovsky Effect?
 Quoting: Anonymous Coward 1018748


Again, the Yarkovsky effect as well as solar radiation pressure are IRRELEVANT over short time spans. It's extremely difficult to even detect even after YEARS of time!
[link to astro.troja.mff.cuni.cz]
"We rather restrict
our analysis to understanding the orbital perturbation induced
by the Yarkovsky effect for the near-Earth asteroids (NEAs)
observed at-present. Obviously, the short time scale involved
( years) must be compensated by very high precision obser-
vations.
"
 Quoting: Dr. Astro


OK, what what about the undetermined, or INCREASE in body size, and gravitational affects?
 Quoting: Anonymous Coward 1018748


The gravity of all the planets is already accounted for. It's not "increasing" in size.
astrobanner2
Anonymous Coward
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02/12/2013 01:10 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
how is it possible for it to pass by 3.5 earth distances when the equator is 24,901.55 miles around,,,now 3.5 times the distance equals 74,704.65 miles. now i know them satellites are not floating at 74,704.65 miles from the earth's surface. now tell me how could it fly inside of the satellites orbit and get sucked in for a strike to earth if they are floating at 74,704 miles from earth ,,,doom canceled till further math can be done. or they quit smoking those left handed cigarettes.
 Quoting: the scientist 33010379


They go by diameter when they measure a single earth distance.Since the earth is 7,928 miles in diameter,3 earth distances would be less than 24,000 miles away.
 Quoting: PC FREE


Maybe they referin ta diametyer of earth about 8000 miles meaning about 24000 mileshiding
Dr. AstroModerator
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02/12/2013 01:10 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
...and could solar winds from flare alter course?
 Quoting: Anonymous Coward 1018748


No.
astrobanner2
Anonymous Coward
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02/12/2013 01:11 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Actual the estimate of its size HAS gone up from 45 to 65 now.

In fact NASA is saying 90m max.
Anonymous Coward
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02/12/2013 01:12 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Well it is "increasing" in size when NASA first tells everyone its 45 meters and now they are saying it is 65 meters and a possibility of 90 meters...
Anonymous Coward
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02/12/2013 01:13 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
So why are some Soviet scientists saying it could very well impact?
Dr. AstroModerator
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02/12/2013 01:14 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
Actual the estimate of its size HAS gone up from 45 to 65 now.

In fact NASA is saying 90m max.
 Quoting: Anonymous Coward 203352


The asteroid is not physically increasing in size. Our determination of its size is only approximate and is based on our calculation of its absolute magnitude. Right now that is mag 24.1 by the minor planet center's calculations, which for an asteroid with an average albedo of about .15 is about 51 meters in size. We will have a much firmer idea of the size from radar observations that will be performed starting on the 16th.
astrobanner2
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02/12/2013 01:14 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Well it is "increasing" in size when NASA first tells everyone its 45 meters and now they are saying it is 65 meters and a possibility of 90 meters...
 Quoting: Anonymous Coward 1018748


So with that increase in diameter, the MASS surely has to be recalculated unless they are saying the density is 1/8 of what they thought.
Dr. AstroModerator
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02/12/2013 01:15 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
So why are some Soviet scientists saying it could very well impact?
 Quoting: Anonymous Coward 1018748


Don't know, don't care. Sounds like you listened to too much RT propaganda.
astrobanner2
Dr. AstroModerator
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02/12/2013 01:16 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
Well it is "increasing" in size when NASA first tells everyone its 45 meters and now they are saying it is 65 meters and a possibility of 90 meters...
 Quoting: Anonymous Coward 1018748


So with that increase in diameter, the MASS surely has to be recalculated unless they are saying the density is 1/8 of what they thought.
 Quoting: Anonymous Coward 203352


Its mass is irrelevant.
astrobanner2
RealmLady50

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02/12/2013 01:16 PM

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Re: 2012 DA14 WILL hit earth.. Confirmed.
This information was found on [link to hisz.rsoe.hu]

(2012 DA14) 14th February 2013 3 day(s) 0.0002 0.09 35 m - 79 m 7.78 km/s 28008 km/h

and the JPL database:

[link to ssd.jpl.nasa.gov]

Be Love!
Anonymous Coward
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02/12/2013 01:19 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
In fact if the asteroid is "breaking up" is could APPEAR to be actually getting larger as its overall density is decreasing (gaps forming, etc.).
Anonymous Coward
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02/12/2013 01:20 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
[link to neo.jpl.nasa.gov]

Scroll down here and you will see 90m max. estimate.
Anonymous Coward
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02/12/2013 01:21 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Well it is "increasing" in size when NASA first tells everyone its 45 meters and now they are saying it is 65 meters and a possibility of 90 meters...
 Quoting: Anonymous Coward 1018748


So with that increase in diameter, the MASS surely has to be recalculated unless they are saying the density is 1/8 of what they thought.
 Quoting: Anonymous Coward 203352


Its mass is irrelevant.
 Quoting: Dr. Astro


why?
Anonymous Coward
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02/12/2013 01:21 PM
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Re: 2012 DA14 WILL hit earth.. Confirmed.
Actual the estimate of its size HAS gone up from 45 to 65 now.

In fact NASA is saying 90m max.
 Quoting: Anonymous Coward 203352


The asteroid is not physically increasing in size. Our determination of its size is only approximate and is based on our calculation of its absolute magnitude. Right now that is mag 24.1 by the minor planet center's calculations, which for an asteroid with an average albedo of about .15 is about 51 meters in size. We will have a much firmer idea of the size from radar observations that will be performed starting on the 16th.
 Quoting: Dr. Astro


Why do you say WE so much and (our determination). It seems you are part of NASA.