The Unha-3 rocket with the Kwangmyongsong-3 satellite payload launched from the Sohae launch site at Tongch’ang-dong.
The Kwangmyongsong-3 is a 100 kg box-shaped satellite
1.4 x 0.6 x 0.7m in size with body-mounted solar panels.
Unha-3 is a three stage vehicle; stage 1 is 2.40m in diameter, stage 2 is about 1.5m in diameter, and stage 3 is about 1.2m in diameter.
The first two stages were to fly south on an azimuth that would lead to an 88 degree inclination orbit; the third stage was expected to make a yawed burn that if successful will result in a 500 km, 97.4 deg inclination sun-synchronous orbit.
It looks a little heavy to get to space.
Nuclear test to follow shortly.
It slashed down near the Glomar Explorer almost striking the ship!