2 identical satellites, GSSAP-7 and GSSAP-8 (Geosynchronous Space Situational Awareness Program) to near-geosynchronous orbit ~36,000km above Earth equator, contributing to timely and accurate orbital predictions, further enabling space flight safety including satellite collision avoidance.

Vulcan Centaur VC4S is a 2-stage-to-orbit heavy-lift rocket, developed to replace ULA Atlas V and ULA Delta IV Heavy.

ULA is a joint venture of Lockheed Martin and Boeing.