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Originally posted by Gwampo
thats peculiar.. an asteroid the size of an aircraft carrier crashing into the ocean will only make a tsunami with waves barely over a meter??
The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 1.4 x 103years
Distance from Impact: 120.00 km ( = 74.50 miles ) Projectile diameter: 400.00 meters ( = 1310.00 feet ) Projectile Density: 3000 kg/m3 Impact Velocity: 5.00 km per second ( = 3.11 miles per second ) Impact Angle: 50 degrees Target Density: 1000 kg/m3 Target Type: Liquid water of depth 1000.0 meters ( = 3280.0 feet ), over crystalline rock. Energy: Energy before atmospheric entry: 1.26 x 1018 Joules = 3.00 x 102 MegaTons TNT The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 1.1 x 105years 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 34500 meters = 113000 ft The projectile reaches the ground in a broken condition. The mass of projectile strikes the surface at velocity 4.89 km/s = 3.04 miles/s The impact energy is 1.20 x 1018 Joules = 2.88 x 102MegaTons. The broken projectile fragments strike the ground in an ellipse of dimension 0.812 km by 0.622 km Crater Dimensions: What does this mean? The crater opened in the water has a diameter of 4.9 km ( = 3.04 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: 1.6 km ( = 0.991 miles ) Transient Crater Depth: 564 meters ( = 1850 feet ) Final Crater Diameter: 2 km ( = 1.24 miles ) Final Crater Depth: 425 meters ( = 1390 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 197 meters ( = 646 feet ). At this impact velocity ( < 12 km/s), little shock melting of the target occurs. Thermal Radiation: What does this mean? At this impact velocity ( < 15 km/s), little vaporization occurs; no fireball is created, therefore, there is no thermal radiation damage. Seismic Effects: What does this mean? The major seismic shaking will arrive approximately 24 seconds after impact. Richter Scale Magnitude: 5.4 Mercalli Scale Intensity at a distance of 120 km: III. Felt quite noticeably by persons indoors, especially on upper floors of buildings. Many people do not recognize it as an earthquake. Standing motor cars may rock slightly. Vibrations similar to the passing of a truck. IV. Felt indoors by many, outdoors by few during the day. At night, some awakened. Dishes, windows, doors disturbed; walls make cracking sound. Sensation like heavy truck striking building. Standing motor cars rocked noticeably. Ejecta: What does this mean? The ejecta will arrive approximately 2.64 minutes after the impact. At your position there is a fine dusting of ejecta with occasional larger fragments Average Ejecta Thickness: 33.6 microns ( = 1.32 thousandths of an inch ) Mean Fragment Diameter: 7.4 mm ( = 2.92 tenths of an inch ) Air Blast: What does this mean? The air blast will arrive approximately 6.06 minutes after impact. Peak Overpressure: 3820 Pa = 0.0382 bars = 0.542 psi Max wind velocity: 8.85 m/s = 19.8 mph Sound Intensity: 72 dB (Loud as heavy traffic) Tsunami Wave: What does this mean? The impact-generated tsunami wave arrives approximately 21.5 minutes after impact. Tsunami wave amplitude is between: 41.7 cm ( = 16.4 inches) and 14.0 meters ( = 46.0 feet).
Originally posted by webpirate
Scientists couldn't predict where the German satellite would land last month, or the US satellite a month or so before that. What makes you think someone can predict where exactly an asteroid is going to land on Earth that isn't even predicted to hit Earth anytime soon?
Originally posted by Glassbender777
Heres the pic you wanted posted
Originally posted by camaro68ss
Also note NASA has downgraded its condition on Asteroid YU55 from Zero ( which means sure miss) to 2, meaning calculations of the gravitational effects of the moon and earth are unsure of the outcome of YU55.
theintelhub.com...
Orbital Elements at Epoch 2455800.5 (2011-Aug-27.0) TDB
Reference: JPL 76 (heliocentric ecliptic J2000)
Element Value Uncertainty (1-sigma) Units
e .4289483333794812 1.6488e-08
a 1.14271630848618 1.8556e-09 AU
q .6525500524354799 1.7824e-08 AU
i .5134566878068612 5.3407e-06 deg
node 39.31610858286876 0.00013978 deg
peri 268.774025473508 0.0001405 deg
M 348.849653467104 5.2929e-07 deg
tp 2455814.319487236273
(2011-Sep-09.81948724) 6.8834e-07 JED
period 446.1758556454617
1.22 1.0868e-06
2.975e-09 d
yr
n .8068567481743378 1.9653e-09 deg/d
Q 1.63288256453688 2.6515e-09 AU
Orbit Determination Parameters
# obs. used (total) 777
# delay obs. used 6
# Doppler obs. used 6
data-arc span 2143 days (5.87 yr)
first obs. used 2005-12-24
last obs. used 2011-11-06
planetary ephem. DE405
SB-pert. ephem. SB405-CPV-2
condition code 1
fit RMS .40501
data source ORB
producer OSOD/Goldstone
solution date 2011-Nov-06 15:50:30
Additional Information
Earth MOID = .00103961 AU
T_jup = 5.400
[ show covariance matrix ]
The trajectory of asteroid 2005 YU55 is well understood. At the point of closest approach, it will be no closer than 201,700 miles (324,600 kilometers) or 0.85 the distance from the moon to Earth. The gravitational influence of the asteroid will have no detectable effect on anything here on Earth, including our planet's tides or tectonic plates. Although 2005 YU55 is in an orbit that regularly brings it to the vicinity of Earth (and Venus and Mars), the 2011 encounter with Earth is the closest this space rock has come for at least the last 200 years.
Originally posted by webpirate
Really?
I thought we had put the x in Google Earth thing to rest.
I just looked at Google Earth....please show me where this X is.
Scientists couldn't predict where the German satellite would land last month, or the US satellite a month or so before that. What makes you think someone can predict where exactly an asteroid is going to land on Earth that isn't even predicted to hit Earth anytime soon?
Furthermore, your link cites GLP. You might have well just said you made up all the facts in your post. I'd be more inclined to believe that than anything from GLP.
edit on 7-11-2011 by webpirate because: spelling
Originally posted by Turkenstein
Originally posted by webpirate
Really?
I thought we had put the x in Google Earth thing to rest.
I just looked at Google Earth....please show me where this X is.
I just read another post that said the comet was going to hit in the Atlantic ocean. Jeeeeez.
Originally posted by Glassbender777
reply to post by webpirate
The post was called Impact theory, quite an interesting post
The following is a stripped down version of a larger theory that is based on what the author believes are symbolic/cryptic messages within the events of 9/11 and subsequent 'Terror' related events. As the theory relies on the author's interpretation of these messages, it is left up to the reader to decide if they reach the same interpretations and conclusion as the author.
The theory neither provides nor relies on mathematical orbital calculation data.
Originally posted by camaro68ss
I just find it strange we are having "drills" the same time this is coming around.
I had a Chinook helicopter fly over my house on the west coast yesterday and i dont even live near a base..... strange..??