Meteor/Meteorite News 19JUL10

Astronomers discover 95 'near-Earth' asteroids
SINDH TODAY
However, the threat of a destructive meteor bombardment is remote at present. WISE will continue to make such discoveries as it starts its survey mode once ...

Asteroids 2010 Scheduled MAY-SEP 2010

NEOs Scheduled Close Approaches
by JPL/NASA for MAY-SEP 2010*
* subject to update without notice!
For more information see the JPL/NASA site:
http://neo.jpl.nasa.gov/ca/

Object Name

Close Approach Date

Miss Distance (LD)

(2010 GU6)	2010-May-01	49.7
(2007 TD71)	2010-May-01	74.5
(2009 YF)	2010-May-02	58.1
(2010 GT6)	2010-May-02	53.0
(2007 DB61)	2010-May-02	35.0
(2009 WA)	2010-May-03	77.1
(2010 HV20)	2010-May-04	36.6
(2010 HS20)	2010-May-05	30.3
(2010 GU21)	2010-May-05	8.0
(2010 FA81)	2010-May-05	17.7
(2008 TE)	2010-May-06	45.3
(2009 BD)	2010-May-07	9.1
(2010 GA24)	2010-May-09	20.0
(2010 AF30)	2010-May-10	69.2
(2008 JP)	2010-May-14	54.7
(2003 FY6)	2010-May-15	54.7
(2003 HR32)	2010-May-17	55.2
(2010 FC81)	2010-May-18	18.2
(2002 XQ40)	2010-May-18	45.2
(2009 YT6)	2010-May-20	50.8
(2004 JX20)	2010-May-20	58.1
(2009 LD)	2010-May-26	41.3
152978 (2000 GJ147)	2010-May-29	73.2
(2005 GB120)	2010-May-30	67.3
(2010 GA34)	2010-May-31	16.4
(2010 FH81)	2010-Jun-01	47.4
(1999 MN)	2010-Jun-04	13.0
(2004 KH17)	2010-Jun-05	32.8
234061 (1999 HE1)	2010-Jun-05	29.9
162120 (1998 SH36)	2010-Jun-12	59.7
(2007 XB10)	2010-Jun-13	27.8
(2007 DD)	2010-Jun-17	33.3
(2009 UD)	2010-Jun-23	64.3
(2007 CS5)	2010-Jun-24	22.5
(2008 YC3)	2010-Jun-24	12.2
(2008 WM64)	2010-Jun-24	24.8
(2010 HC)	2010-Jun-27	46.7
154590 (2003 MA3)	2010-Jun-27	28.8
(2005 ED318)	2010-Jun-28	27.1
(2005 QC5)	2010-Jun-29	58.9
(2005 WE)	2010-Jul-02	51.4
(2009 HU44)	2010-Jul-02	57.6
(2008 YJ3)	2010-Jul-10	40.0
(2008 UP100)	2010-Jul-11	34.3
(2009 BD)	2010-Jul-12	10.6
(2002 LT24)	2010-Jul-14	56.1
(2002 BF25)	2010-Jul-18	10.5
(2008 NP3)	2010-Jul-19	26.8
(2008 VK14)	2010-Jul-19	75.5
(2006 BX7)	2010-Jul-21	66.1
(2009 PC)	2010-Jul-22	48.5
(2006 KL21)	2010-Jul-23	33.4
(2001 OT)	2010-Jul-23	54.8
85989 (1999 JD6)	2010-Jul-27	53.9
(2003 MJ4)	2010-Jul-31	62.9
(1994 CB)	2010-Jul-31	35.2
(2002 QY6)	2010-Jul-31	55.6
(2007 ML13)	2010-Aug-03	75.3
6239 Minos	2010-Aug-10	38.3
(2002 AV31)	2010-Aug-11	73.0
(2007 YT56)	2010-Aug-11	41.6
(2002 AC9)	2010-Aug-13	19.0
(2005 NZ6)	2010-Aug-14	60.5
(2007 EH)	2010-Aug-14	75.6
(2010 CB55)	2010-Aug-15	18.6
(2004 SC56)	2010-Aug-18	33.5
(2010 FO92)	2010-Aug-19	59.1
(2008 OS9)	2010-Aug-23	73.6
(2000 QV7)	2010-Aug-24	58.9
(2007 DS7)	2010-Aug-26	37.2
(2007 DD)	2010-Aug-28	32.0
(2002 EY2)	2010-Aug-30	42.1
85640 (1998 OX4)	2010-Aug-31	73.4
154029 (2002 CY46)	2010-Sep-02	63.8
(2007 VG189)	2010-Sep-13	67.5
(2010 EX11)	2010-Sep-26	50.1
(2009 SH2)	2010-Sep-30	7.1

Asteroids through the rest of April 2010

http://neo.jpl.nasa.gov/ca/ see original site for 2010 schedule and more information.

(2010 FD7)	2010-Apr-14
218017 (2001 XV266)	2010-Apr-15
(2001 HC)	2010-Apr-15
(2009 BW2)	2010-Apr-16
(2010 GJ30)	2010-Apr-16
(2010 CM44)	2010-Apr-17
(2009 BK2)	2010-Apr-17
(2004 HZ)	2010-Apr-17
(2010 EC43)	2010-Apr-18
(2010 FA6)	2010-Apr-19
(2005 YU55)	2010-Apr-19
(2008 UC202)	2010-Apr-20
(2010 GZ5)	2010-Apr-21
(2010 GP33)	2010-Apr-22
(2009 UY19)	2010-Apr-23
(2004 US1)	2010-Apr-25
(2005 XB1)	2010-Apr-27
(2010 GE35)	2010-Apr-28
164207 (2004 GU9)	2010-Apr-28
(2010 GS7)	2010-Apr-28
(2008 UN3)	2010-Apr-29
(2002 JR100)	2010-Apr-29
(2010 FF10)	2010-Apr-30

Fewer large asteroids- 24OCT09

Fewer large asteroids than as predicted

And now, from the pessimists...

A fine theory and simulation. A shame it doesn't
correspond in any way to reality. The impact rate
on terrestrial planets starts out very high at the
beginning of the solar system, declines for half
a billion years then rises again in a final flurry of
accretion and clean-up, at 3.9 billion years ago.
The rate declines in a fairly uniform manner
thereafter, but about 600-to-400 million years
ago, it suddenly climbs to a level not seen since
3.4 billion years ago, and it is STILL at that
higher level today.

This is from the actual impact record, not having-
fun-with-your-computer-model science kit. The
data is from impact spherules in the lunar regolith
and the graph of the impact rates throughout
time can be found on page 660 of:
http://muller.lbl.gov/papers/lunar_impacts_Nemesis.pdf

More information here:
http://www.bibliotecapleyades.net/ciencia/ciencia_nemesis08.htm

True, this researcher thinks it might be proof of
a big comet infall due to an undiscovered companion
small star to the Sun, but so what? It might be, but
the immediate mechanism is likely to be asteroidal
breakup.

The timing matches perfectly with the breakup of
the L-chondrite parent body, the largest asteroidal
breakup in the past few billion years or so. The
evidence and timing for that is presented here:
http://www.psrd.hawaii.edu/Mar04/fossilMeteorites.html

At about 480 million years ago (Ordovician times),
the meteorite fall rate on the Earth was 100 TIMES
GREATER than it is today, during the peak of that
breakup episode.

The history of the formation of the 50 or so asteroidal
families unambiguously identified does not match this
pretty little theory in the least. Reality is contingent,
accidental, and randomly chaotic, and NOT "well
described with a logarithmic decay law."

Source: Sterling K. Webb, USA

Wolrdwide Meteor/Meteorite News- Asteroid Smaller Than Thought 29JUL09

Devastating asteroid smaller than once thought

Globe and Mail - Sue Major Holmes - ‎

“A meteorite or asteroid coming into Earth's atmosphere has a lot of momentum,” he said. “The idea that it would push down into the atmosphere seems very ...

Argentina Meteorite News- Más de mil objetos podrían chocar contra la Tierra 27JUL09

Más de mil objetos podrían chocar contra la Tierra

Lanacion.com (Argentina) - ‎

El "evento de Tunguska", que dejó un escenario devastado en una superficie de 2000 kilómetros cuadrados, es considerado el mayor impacto de un meteorito en ...

Google Spanish- English Translation:
More than a thousand objects might hit Earth
Lanacion.com (Argentina) - 19 hours ago The "Tunguska Event", which left a scene in a devastated area of 2000 square kilometers, is considered the greatest impact of a meteorite in ...