I had a busy night last night. For those of you not on Twitter (or who sleep), here’s a quick rundown of events.
North Korea launched a rocket from its Sohae Satellite Launching Station just after 9:00am on 7 February local time. North Korea notified the International Maritime Organization of its projected splashdown zones and later revised it to a window of 7-14 February.
38 North caught fueling activities with satellite imagery, but it has become difficult to assess launch times with the new covered rail and support facilities at the pad. CNS made the following 3D visualization for NTI in October. It shows many of the improvements to the pad, although North Korea added more fueling bunkers, as well as facilities to the engine test stand in recent weeks.
North Korea made a formal announcement of its success at 12:00 local time, and for the first time in my recollection opened live YouTube and Ustream channels. The quality was terrible, so as usual I am very grateful to Martyn Williams’ link. He posted video and audio, for posterity.
During the announcement they flashed and image of Kim Jong Un signing the order to launch.
https://twitter.com/mhanham/status/696175217299714048
KCTV showed a close up of the Report on preparations, entitled “인공지구위성 ‘광명성-4호’ 발사 준비를 끝낸 정형과 대책 보고 [Official report on completed preparations for Gwangmyeongsong-4 satellite launch].”

On it, Kim Jong Un has written: “The Central Party approves the satellite launch. The launch will take place on 2016.2.7 at 9 AM / KIM JONG UN 2016.2.6,” which was not very Juche calendar of him. Hat tip to my research assistant Bo Kim on the translation.
KCNA also made an official announcement calling the rocket “Kwangmyongsong.” Just like the satellite? Not very creative people!
My colleagues and I grabbed any images of the rocket we could find. Initial impressions are that it is extremely similar to the Unha-3 rocket.
https://twitter.com/mhanham/status/696196142116134913
This is a SketchUp overlay of the 2012 and 2016 launch vehicles. Once the high resolution photos come out, we’ll do a more careful analysis correcting for the camera angle. This is also just an assessment of the outside of the rocket. We don’t know how much tinkering went on inside, but the similar splash down zones in 2012 and 2016 makes me think — not too much.
https://twitter.com/mhanham/status/696252503663378432
The satellite and 3rd stage are now in orbit. No transmission yet that I know of.
You can follow object 41332 aka KMS-4 at www.space-track.org. People are already posting visualizations.
Going forward, CNS will do some image and video analysis once it becomes available. You can see our currently available 3D models and videos for Sohae and the Unha-3 here.
You can also expect the US and South Korea to attempt to recover the wreckage of the first and second stages of the rocket. In 2014, the UN Panel of Experts on North Korea documented many components of foreign origin.
https://twitter.com/mhanham/status/696210792404770816
You can also expect a pretty vigorous debate on the next round of sanctions and THAAD. I’m getting out the popcorn!