Status: Operational 2014. First Launch: 2014-12-13. Last Launch: 2014-12-13. Number: 1 .
|Trumpet-F/O 1, 2 Null|
Probably a signals intelligence satellite with an attached SBIRS-HEO early warning sensor as a secondary payload. This mission used the new RL-10C-1 upper stage engine for the first time (refurbished from Delta IV RL-10B-2 engines; replacing the RL10A-4 used previously)