Asteroid 2004 MN4
I’ve edited the first post to change the impact to 4/13/2029. I’m not sure where my fevered imagination got 2030.)
Good news is that they’re up to 169 observations, the size is down to 380 meters with a corresponding impact of 1420 megatons.
Bad news–4/13/2004 is a Friday :-0, and the impact odds are indeed down to 1 in 44.4.
According to a correspondent in an email reflector I inhabit, there will be a lot of observations in the next month or so. I’ll keep up with what’s going on and post further if necessary. If you see nothing, assume no news is the news.