Ummm, a miss distance of one tenth of a lunar distance? That's a leeeeetle close

Recent & Upcoming Earth-asteroid encounters:

Asteroid        Date(UT)          Miss Distance      Velocity (km/s)       Diameter (m)
2012 TC4       2017-Oct-12       0.1 LD                 7.6                           16

http://spaceweather.com/

How big is the Asteroid?  I followed the link but it seemed to be about unrelated stories. 

20m in diameter.

https://en.wikipedia.org/wiki/2012_TC4

I'm too lazy to look it up, but wasn't the one that came down in Russia a few years back about that size? 

I think you can relax Nan. 

I'd rather set up a betting pool to see if it takes out any cell phone satellites. 

http://www.dailymail.co.uk/sciencetech/article-4779600/What-happen-asteroid-TC4-did-hit-Earth.html 

Hey Nan, I think you need to conquer your fear by purchasing some meteorite from my bonkers aquantance:
http://www.spacerocksuk.com/

I was going to buy some space shuttle bits from him but never got around to it.

Nawww, already gots a meteorite. (I used to be a "rock hound" when I was a kid.)....

Did you find it yourself?  Where?

I'm too lazy to look it up, but wasn't the one that came down in Russia a few years back about that size? 

I think you can relax Nan.

Muzzle velocity. It's going a thousand miles a second.

Did you find it yourself?  Where?

Meteor crater, Odessa, TX.

I think. (It was 50+ years ago....)