Wrong thread..totoro said:https://thediplomat.com/2018/02/revealed-the-details-of-chinas-latest-hit-to-kill-interceptor-test/
While most of the stuff is known, there are some tidbits new to me in the text above. According to them, it's a "larger than sm-3" missile with capabilities "similar to sm-3", called dn-3.
Here is the OSD budget with most of those SCO programs mentioned in the article -bobbymike said:From Inside Defense (paywall)
DOD seeking $1.5B for SCO in FY-19, including $438M for seven new projects
The Strategic Capabilities Office is seeking nearly $1.5 billion in fiscal year 2019 -- an increase of more than 20 percent over FY-18 -- to develop new and surprising ways of using existing technology to bolster conventional deterrence against China and Russia.
I guess the implication is that the HVP doesn't have an active seeker so the interferometric radars provide the necessary angular resolution for
some command guided or midcourse update scheme. We've seen similar schemes before.