Topic: meteor impact caculator
mightymoe's photo
Wed 04/06/11 10:07 AM
Edited by mightymoe on Wed 04/06/11 10:10 AM
according to the jpl data, there are 2 asteroids that will be under .5 ld today...


name -- AU -- LD -- SIZE -- mag -- vel
(2011 GW9) --2011-Apr-06 --0.0013 --0.5 LD -- 6.3 m - 14 m -- 28.1 -- 11.36
(2009 HE60) -- 2011-Apr-06 -- 0.0813 31.7 -- 20 m - 44 m -- 25.7-- 5.24
(2011 GP28) -- 2011-Apr-06 -- 0.0006 0.2 -- 3.6 m -- 8.0 m -- 29.4 -- 14.82


metalwing's photo
Wed 04/06/11 12:06 PM

according to the jpl data, there are 2 asteroids that will be under .5 ld today...


name -- AU -- LD -- SIZE -- mag -- vel
(2011 GW9) --2011-Apr-06 --0.0013 --0.5 LD -- 6.3 m - 14 m -- 28.1 -- 11.36
(2009 HE60) -- 2011-Apr-06 -- 0.0813 31.7 -- 20 m - 44 m -- 25.7-- 5.24
(2011 GP28) -- 2011-Apr-06 -- 0.0006 0.2 -- 3.6 m -- 8.0 m -- 29.4 -- 14.82




Maybe you should plug them into the calculator and see how much damage they would do if that hit?

mightymoe's photo
Wed 04/06/11 12:25 PM


according to the jpl data, there are 2 asteroids that will be under .5 ld today...


name -- AU -- LD -- SIZE -- mag -- vel
(2011 GW9) --2011-Apr-06 --0.0013 --0.5 LD -- 6.3 m - 14 m -- 28.1 -- 11.36
(2009 HE60) -- 2011-Apr-06 -- 0.0813 31.7 -- 20 m - 44 m -- 25.7-- 5.24
(2011 GP28) -- 2011-Apr-06 -- 0.0006 0.2 -- 3.6 m -- 8.0 m -- 29.4 -- 14.82




Maybe you should plug them into the calculator and see how much damage they would do if that hit?


i don't know how to use that calculator... i tried yesterday and wasn't even sure if i was on the right calculator

mightymoe's photo
Wed 04/06/11 12:31 PM



according to the jpl data, there are 2 asteroids that will be under .5 ld today...


name -- AU -- LD -- SIZE -- mag -- vel
(2011 GW9) --2011-Apr-06 --0.0013 --0.5 LD -- 6.3 m - 14 m -- 28.1 -- 11.36
(2009 HE60) -- 2011-Apr-06 -- 0.0813 31.7 -- 20 m - 44 m -- 25.7-- 5.24
(2011 GP28) -- 2011-Apr-06 -- 0.0006 0.2 -- 3.6 m -- 8.0 m -- 29.4 -- 14.82




Maybe you should plug them into the calculator and see how much damage they would do if that hit?


i don't know how to use that calculator... i tried yesterday and wasn't even sure if i was on the right calculator


nm, i was at a different link

mightymoe's photo
Wed 04/06/11 12:36 PM
the first would leave a crater about the size of the wolf crater in arizona, not much damage, the second is smaller and slower, now way to calculate...

AdventureBegins's photo
Fri 04/08/11 03:05 PM
From the folks at SpaceWeather.

"TENNESSEE FIREBALL: Space rocks have landed in Tennessee. That's the conclusion of researchers who recorded a brilliant fireball streaking over the Smoky Mountain state on Wednesday evening. Bill Cooke of NASA's Meteoroid Environment Office reports: "On April 6th at 8:21:57 CDT, NASA all-sky meteor cameras detected a very bright fireball moving north across the state of Tennessee. First detected 52 miles above the Arnold Air Force base near Tullahoma, the meteor was brighter than crescent Moon and was approximately 2 feet in diameter, with a weight of 200 lbs. It was last recorded 30 miles above the town of Woodbury, Tennessee, moving at a speed of approximately 9 miles per second (32,400 mph)."

Theree is another of the same mass following this one.

There is one of even greater mass behind the second.

My program can not calculate exact orbital parameters. I have no idea if one will even impact the atmosphere or simply cross our orbit ahead of us.

metalwing's photo
Fri 04/08/11 03:17 PM
I plugged in a 2 meter one from about a mile away. It doesn't do much.

Your Inputs:
Distance from Impact: 2.00 km ( = 1.24 miles )
Projectile diameter: 2.00 meters ( = 6.56 feet )
Projectile Density: 8000 kg/m3
Impact Velocity: 14.50 km per second ( = 9.00 miles per second )
Impact Angle: 45 degrees
Target Density: 1500 kg/m3
Target Type: Crystalline Rock

Energy:
Energy before atmospheric entry: 3.52 x 1012 Joules = 0.84 x 10-3 MegaTons TNT
The average interval between impacts of this size somewhere on Earth is 0.5 years

Major Global Changes:
The Earth is not strongly disturbed by the impact and loses negligible mass.
The impact does not make a noticeable change in the tilt of Earth's axis (< 5 hundreths of a degree).
The impact does not shift the Earth's orbit noticeably.

Atmospheric Entry:
The projectile lands intact, with a velocity 5.02 km/s = 3.12 miles/s.
The energy lost in the atmosphere is 3.10 x 1012 Joules = 0.74 x 10-3 MegaTons.

Crater Dimensions:
What does this mean?


Transient Crater Diameter: 79.8 meters ( = 262 feet )
Transient Crater Depth: 28.2 meters ( = 92.6 feet )

Final Crater Diameter: 99.8 meters ( = 327 feet )
Final Crater Depth: 21.2 meters ( = 69.7 feet )
The crater formed is a simple crater

The floor of the crater is underlain by a lens of broken rock debris (breccia) with a maximum thickness of 9.84 meters ( = 32.3 feet ).
At this impact velocity ( < 12 km/s), little shock melting of the target occurs.

AdventureBegins's photo
Fri 04/08/11 07:34 PM
Edited by AdventureBegins on Fri 04/08/11 07:55 PM
What I worry about is the TRUE surface of the Earth...

The upper atmosphere. (it is a part of the ocean and therefore the ACTUAL surface that meets space).

My model indicates an atmospheric strike above the Western South Pacific.

With a high probability of creating a sudden departure of the jetstream in that area rapidly south. (this will, in effect drasticlly alter the atmospheric dynamics for 6 months or more).

I believe the strike occured somewhere about 100 am Zulu 9/8.

Sorry for the delay in warning. My model can not calculate all of the objects fast enough to pinpoint their orbits.

For those that say they are to small...

This one is roughly the size as described in another post as a 'small rock'.

(If it struck the ocean surface there might be a tsunami in New Zealand and Austrialia and along the South American coast).

AdventureBegins's photo
Mon 04/11/11 02:40 PM
Edited by AdventureBegins on Mon 04/11/11 02:42 PM
If my model is correct...

The center of the 'swarm' should cross our orbit late 14th or earily 15th of April.

Watch as they 'spin' our weather with out ever having impacted the surface of the earth.

They don't have to hit us to cause damage.

However one will.

Model is also indicating an impact in the Atlantic near the equator. Object will enter atmosphere 'moving' from east to west at approximately 8 miles per second.

If it impacts the surface of the ocean it will create a rogue wave that will travel to South America. (I hope it burns up in the atmosphere).

*edit:--this one comes now. Within the next few hours.*

AdventureBegins's photo
Tue 04/12/11 08:40 PM
These asteriods are moving at about 8 to 9 per second.

We have the technology to reach 7 to 9 do we not?

Wow...

A free ride through the solar system. With but a small expenditure in fuel.

What data would a probe return from such a ride?

Could we actually put a probe on one of these PHA's?

AdventureBegins's photo
Thu 04/14/11 07:53 PM
the 'eye' of the swarm passes.

We now have to worry about the following 'eye' wall...

One will pass in the next few hours that has the potential to 'trigger' an earth movement of 7 or greater...

If my model is correct.

(it may also cause some 'unusual' weather).

and it will not even hit us.

AdventureBegins's photo
Fri 04/15/11 07:56 PM
Now the weather will produce 'spin' and 'counter-spin' within the atmosphere...

In global size areas.

They don't have to hit us to create damage.

mightymoe's photo
Wed 04/20/11 02:17 PM
this is the same asteriod that they were thinking will hit us in dec 2012, it is still going to be a near miss, if it misses us at all...

PASADENA, Calif. -- Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036.

The Apophis asteroid is approximately the size of two-and-a-half football fields. The new data were documented by near-Earth object scientists Steve Chesley and Paul Chodas at NASA's Jet Propulsion Laboratory in Pasadena, Calif. They will present their updated findings at a meeting of the American Astronomical Society's Division for Planetary Sciences in Puerto Rico on Oct. 8.

"Apophis has been one of those celestial bodies that has captured the public's interest since it was discovered in 2004," said Chesley. "Updated computational techniques and newly available data indicate the probability of an Earth encounter on April 13, 2036, for Apophis has dropped from one-in-45,000 to about four-in-a million."

A majority of the data that enabled the updated orbit of Apophis came from observations Dave Tholen and collaborators at the University of Hawaii's Institute for Astronomy in Manoa made. Tholen pored over hundreds of previously unreleased images of the night sky made with the University of Hawaii's 88-inch telescope, located near the summit of Mauna Kea.

AdventureBegins's photo
Wed 04/20/11 06:58 PM

I plugged in a 2 meter one from about a mile away. It doesn't do much.

Your Inputs:
Distance from Impact: 2.00 km ( = 1.24 miles )
Projectile diameter: 2.00 meters ( = 6.56 feet )
Projectile Density: 8000 kg/m3
Impact Velocity: 14.50 km per second ( = 9.00 miles per second )
Impact Angle: 45 degrees
Target Density: 1500 kg/m3
Target Type: Crystalline Rock

Energy:
Energy before atmospheric entry: 3.52 x 1012 Joules = 0.84 x 10-3 MegaTons TNT
The average interval between impacts of this size somewhere on Earth is 0.5 years

Major Global Changes:
The Earth is not strongly disturbed by the impact and loses negligible mass.
The impact does not make a noticeable change in the tilt of Earth's axis (< 5 hundreths of a degree).
The impact does not shift the Earth's orbit noticeably.

Atmospheric Entry:
The projectile lands intact, with a velocity 5.02 km/s = 3.12 miles/s.
The energy lost in the atmosphere is 3.10 x 1012 Joules = 0.74 x 10-3 MegaTons.

Crater Dimensions:
What does this mean?


Transient Crater Diameter: 79.8 meters ( = 262 feet )
Transient Crater Depth: 28.2 meters ( = 92.6 feet )

Final Crater Diameter: 99.8 meters ( = 327 feet )
Final Crater Depth: 21.2 meters ( = 69.7 feet )
The crater formed is a simple crater

The floor of the crater is underlain by a lens of broken rock debris (breccia) with a maximum thickness of 9.84 meters ( = 32.3 feet ).
At this impact velocity ( < 12 km/s), little shock melting of the target occurs.

Damage at impact. That is but a small part of what this 'itty bitty' rock is measured by...

How short sighted.

A energy transfer from the object to the atmosphere is 10-3 megatones... The atmosphere 'sheds' energy into the planetary systems...

What would such a sudden influx of that much energy in such a small point do to the atmospheric patterns? (which take months to shed the STABLE energy patterns)

Global Impact? The above states the damage to the Earth would be negligable...

to Dirt of the Earth this is so. However the EARTH is a multifaceted link of SYSTEMS. (all of which effect US)

The Global Impact on the Weather Systems of Earth is an abrupt departure form normal weather patters. Starting at the point of atmospheric 'energy exchange' and spreading out from that point as 'ripples' in the pattern.

Need I mention that a 'small' deviation from the patterns is quite an event for the humans in the way?

AdventureBegins's photo
Tue 05/03/11 09:01 PM

this is the same asteriod that they were thinking will hit us in dec 2012, it is still going to be a near miss, if it misses us at all...

PASADENA, Calif. -- Using updated information, NASA scientists have recalculated the path of a large asteroid. The refined path indicates a significantly reduced likelihood of a hazardous encounter with Earth in 2036.

The Apophis asteroid is approximately the size of two-and-a-half football fields. The new data were documented by near-Earth object scientists Steve Chesley and Paul Chodas at NASA's Jet Propulsion Laboratory in Pasadena, Calif. They will present their updated findings at a meeting of the American Astronomical Society's Division for Planetary Sciences in Puerto Rico on Oct. 8.

"Apophis has been one of those celestial bodies that has captured the public's interest since it was discovered in 2004," said Chesley. "Updated computational techniques and newly available data indicate the probability of an Earth encounter on April 13, 2036, for Apophis has dropped from one-in-45,000 to about four-in-a million."

A majority of the data that enabled the updated orbit of Apophis came from observations Dave Tholen and collaborators at the University of Hawaii's Institute for Astronomy in Manoa made. Tholen pored over hundreds of previously unreleased images of the night sky made with the University of Hawaii's 88-inch telescope, located near the summit of Mauna Kea.

Again I will say it.

How short sighted.

It does not have to hit us to cause 'damage'.

This object will 'shock' our weather patterns. It is sufficiently large that it will 'shock' our geological systems at close approach.

The EARTH itself will not be 'damaged' much by it. But the civilization that exists upon the earth will most definantely be 'effected' drastically.

It has the potential (depending upon how close 'close approach' is) to create a magnitude 10 or greater earth movement.

If there is but one person out there that has tried to 'calculate' along my lines of reasoning during the 'swarm' of debrie that recently crossed close in to our orbit and actually correlated it to the current weather 'deviations' and 'abnormal' patterns (such as tornado swarms)...

The 'eye wall' approaches. (the back side of the 'swarm' - enhanced by debrie from Haleys)

There will be further 'devations'.

China may even see weather simular to what the US has been experiencing...

But yall just keep right on believing that this is global warming...

What would it do to the east coast of the US if a Hurricane walked along it from Florida to New York?

Holly4459's photo
Tue 05/03/11 09:07 PM
Omg! Something ELSE to worry about now?!noway tears

no photo
Tue 05/03/11 09:20 PM
Fortunately we have George Lucas to shoot all those asteroids down for us! There is nothing to worry about anymore! Yippie!

mightymoe's photo
Wed 05/04/11 04:30 PM
has anyone else heard of the comet "Elenin"? it was discovered dec 10,2010 and the estimated size is 80,000 Km... and, apearently, it is going to be very close to us in october... here is a few sites that discribe it...

here is the orbit diagram
http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=C%2F2010+X1&orb=1


http://thewatchers.adorraeli.com/2011/03/11/new-approach-of-a-comet-with-an-asteroid-elenin/

http://www.elenin.org/
this sites says it maybe the suns companion star, a brown drawf, since there are some bodies that rotate around it...

no photo
Thu 05/05/11 09:36 AM

Omg! Something ELSE to worry about now?!noway tears



metalwing's photo
Thu 05/05/11 09:49 AM

has anyone else heard of the comet "Elenin"? it was discovered dec 10,2010 and the estimated size is 80,000 Km... and, apearently, it is going to be very close to us in october... here is a few sites that discribe it...

here is the orbit diagram
http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=C%2F2010+X1&orb=1


http://thewatchers.adorraeli.com/2011/03/11/new-approach-of-a-comet-with-an-asteroid-elenin/

http://www.elenin.org/
this sites says it maybe the suns companion star, a brown drawf, since there are some bodies that rotate around it...


You have the size wrong. It is too small to be significant and it is going to miss us by 22 million miles.