Posted this in general, but I'll post it here as well.

Planefags. Would like to bring your attention to this

RONIN31 - 29,000ft off the SK east coast… 🇺🇸 USAF E-8C JSTARS 95-0122

twitter.com/CivMilAir/status/948581261471297537

Cobra Ball airborne - Ballistic Missile detection platform. No position showing 🇺🇸 US Air Force RC135S 62-4128

twitter.com/CivMilAir/status/948588157737623552 .

Have been several skykings this morning, and indications that NK is preparing for another missle launch. A couple of eyes on it might be useful, and I don't have the time or knowledge.