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Subject Report removed from internet after findingsreveal a huge asteroid will slam into Antarctica inthe Fall of 2012...

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[quote:Anonymous Coward 15903829:MV8xODc5ODQ3XzMxMzgzNTQ2XzZBODVFN0FC]
[quote:12.21.12:MV8xODc5ODQ3XzMxMzc5OTIzX0E4NDIzQTcz]
:spock:  :asteroid:
[/quote]

Energy:
Energy before atmospheric entry: 6.95 x 1021 Joules = 1.66 x 106 MegaTons TNT
The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 6.8 x 106years
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 begins to breakup at an altitude of 39100 meters = 128000 ft
The projectile reaches the ground in a broken condition. The mass of projectile strikes the surface at velocity 80.3 km/s = 49.9 miles/s
The impact energy is 6.92 x 1021 Joules = 1.65 x 106MegaTons.
The broken projectile fragments strike the ground in an ellipse of dimension 0.833 km by 0.833 km
Crater Dimensions:
What does this mean?

The crater opened in the water has a diameter of 43.7 km ( = 27.1 miles ).

For the crater formed in the seafloor:
Crater shape is normal in spite of atmospheric crushing; fragments are not significantly dispersed.

Transient Crater Diameter: 22.3 km ( = 13.8 miles )
Transient Crater Depth: 7.88 km ( = 4.9 miles )

Final Crater Diameter: 33.6 km ( = 20.8 miles )
Final Crater Depth: 852 meters ( = 2790 feet ) 
The crater formed is a complex crater. 
The volume of the target melted or vaporized is 27.1 km3 = 6.49 miles3 
Roughly half the melt remains in the crater, where its average thickness is 69.4 meters ( = 228 feet ). 
Thermal Radiation:
What does this mean?

The fireball is below the horizon. There is no direct thermal radiation. 
Seismic Effects:

The major seismic shaking will arrive approximately 21.5 minutes after impact.
Richter Scale Magnitude: 8.5
Mercalli Scale Intensity at a distance of 6440 km:

Nothing would be felt. However, seismic equipment may still detect the shaking.

Ejecta:

The ejecta will arrive approximately 34 minutes  after the impact.
At your position there is a fine dusting of ejecta with occasional larger fragments
Average Ejecta Thickness: 8.26 microns ( = 0.325 thousandths of an inch ) 
Mean Fragment Diameter: 3.53 microns ( = 0.139 thousandths of an inch )

Air Blast:

The air blast will arrive approximately 5.42 hours after impact.
Peak Overpressure: 1060 Pa = 0.0106 bars = 0.151 psi
Max wind velocity: 2.5 m/s = 5.59 mph
Sound Intensity: 61 dB (Loud as heavy traffic)
Tsunami Wave:
What does this mean?

The impact-generated tsunami wave arrives approximately 12.8 hours after impact.

Tsunami wave amplitude is less than 13.6 meters ( = 44.5 feet).

=========

Holy shit....  44 foot tidal wave....  8.5 Richter EQ...

And this if you are 4000 miles from impact.

100 miles from impact:

Thermal Radiation:
What does this mean?

Time for maximum radiation: 474 milliseconds  after impact

Visible fireball radius: 36.1 km ( = 22.4 miles ) 
The fireball appears 50.9 times larger than the sun
Thermal Exposure: 1.19 x 108 Joules/m2
Duration of Irradiation: 8.26 minutes
Radiant flux (relative to the sun): 240

Effects of Thermal Radiation:

Clothing ignites

Much of the body suffers third degree burns

Newspaper ignites

Plywood flames

Deciduous trees ignite

Grass ignites
[/quote]

Original Message University of British Columbia Professor
published an on-line article that projected an
800m asteroid would hit Antarctica in the
fall of 2012.
His article was on the www.phas.ubc.ca
website for 2 days before it abruptly
disappeared. The initial data was gathered by
The Balloon-borne Large-Aperture Sub
millimeter Telescope (BLAST) at McMurdo
Station, Antarctica. The theorized asteroid
was then tracked by Canada-France-Hawaii
Telescope on Mauna Kea, which (with the
Adaptive Optics Bonnette) supplies probably
the sharpest images currently obtainable
from the ground. [link to www.reinep.wordpress.com]

Pictures (click to insert)





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