2012 DA14

Phil Plait haas a Slate article about our recent near-miss:

As you may have heard, the asteroid 2012 DA14 silently glided past Earth on 15 February 2013. Observations using radar have shown it to be an elongated rock about twenty by forty meters in size. Normally such a small rock would evince little interest, but this one came close, missing the Earth by about 27,000 kilometers.
It still didn’t get very bright; it was invisible to the naked eye. But, with digital cameras and dark skies, snapping pictures of it was a matter of knowing where to aim, something photographer Colin Legg knows very well. From Perth, Australia, he captured this lovely time-lapse video (above) of the asteroid moving past Earth right at the time of its closest approach. And he captured more than just DA14; there are some other surprises in the video, too.
You can see DA14 sliding through the video from top to bottom on the left side of the frame. But, right after the video starts, a meteor plummets through the field of view, leaving behind what’s called a persistent train— a trail of vaporized rock that can glow for several minutes.
If you look carefully, you can also see a several of tiny, faint dots traveling across the frame. Those are human-made satellites on different orbits, zipping around the Earth (I don’t think any are airplanes, which would be tremendously bright in the video). There are thousands of them circling overhead, and on any given dark night you can spot several if you know where to look. There are plenty of websites that can do that.
I love how serene the video is, even as objects criss-cross in every direction. The story back home on Earth was anything but, with the Chelyabinsk meteor, and people fretting over various other fireballs in the sky. But here again is proof that these things happen a lot; the meteor Legg captured on video shows you that, pretty much no matter where you look, something is burning up in our atmosphere. That bit of asteroidal material was probably no bigger than a grain of fine sand, but there’s a lot more of that stuff than the bigger, scarier kind. A hundred tons of material burns up over our heads every day. If you have a clear, moonless night, a big view of the sky, and a bit of luck, you might see a gram or two of it yourself.

Rico says he's seen a couple in his life, and hopes not to be around for the next big one...