I will be posting here randomly as I spot any Near Earth Orbit (NEO) Potentially Hazardous Asteroids (PHAs) that get between us and the moon. i.e. less than 1 LD (lunar distance).

I get this info from Space Weather (list is near the bottom)

The asteroid 2011 AN52 will get to 0.8 LD but is only 8 metres across. On Jan 17 2011 . Link here for longer list.

That's a neat idea Snowy, you can inform us of our pending doom  .

Hopefully there won't be many posts made in this topic, but lets see.

A new PHA coming up and I missed one on the 9th of FEB.

Name          Date of          Distance (LD = Lunar Distance)
                  closest               and Size
                  approach

2011 CA7   Feb 9       0.3 LD and only 4 meters across.

2009 BD     Jun 2       0.9 LD and only 9 meters across.

New one found.

2011 EB74     Mar 16     0.9 LD        18 m

Click here for more complete list.

I missed 2.

2011 GW9      Apr 6       0.5 LD        10 m
2011 GP28     Apr 6       0.2 LD        6 m

And this one is still to come.

2009 BD     Jun 2       0.9 LD        9 m.

Spaceweather has a meteor video today (08/04/2011). It was clocked travelling at 32,400 mph and parts landed close to the Kentucky border.

Not been any close PHAs for a while.

June 27th the asteroid 2011 MD will pass at 0.05 LD from us. It's only 13 meters across so is nowhere near a planet buster.

Info from Space Weather site.
Here is a list of NEOs.

Missed one from Spaceweather.

2011 OD18     July 28     0.4 LD     22m

And another still to come.

2005 YU55      Nov 9       0.8 LD     175m

A new study into Near Earth Objects annouced:

http://www.bbc.co.uk/news/science-environment-16651642

So, what do we think is the best method guys?

I'm with the Kinetic Impactor myself 

And I actually mean the ones in space too 

Looks like we had a near miss recently

http://www.bbc.co.uk/news/science-environment-16756450

DD

DD I merged two of your topics with Snowys PHA watch. 

NO problem, makes sense to me 

For those not wanting to read the PHA was named "2012 BX34" and passed by at 0.2 LD (Lunar Distance) on 27th Jan.

It was only spotted about 7 days before its closest approach.

Which could be considered a little bit scary!!!

It was only 13 meters accross. Some would've got through but most would've burnt up.

Likely damage would be 1 car or 1 roof with what was left. Most likely to hit sea.

Just watched Horizon: The good, the bad, and the ugly. It was about asteroids

The Tunguska event in 1908 was estimated at 1-10 mega ton explosion and estimated to be about 30-50 meter asteroid.

I revise my blasé comment in the previous post about a 13m asteroid.