AKA: P-21;SS-C-3A;SS-C-3B;Styx. Status: Active. First Launch: 2011-09-27. Last Launch: 2015-03-18. Number: 6 .
R&D launch. New-generation Rubezh ('Frontier') missile, most likely impacting the Balkash test range at Sary Shagan. The new missile is suspected to be a derivative of the existing Topol solid fuel series of missiles; earlier launches were in September 2011 and May and October 2012.