Atlas V SBIRS GEO Flight 3 Payload Mate

The third Space-Based Infrared System (SBIRS) satellite, encapsulated inside a 4-meter payload fairing, is mated to an Atlas V rocket inside the Vertical Integration Facility at Cape Canaveral's Space Launch Complex-41.

YouTube Video Link :
https://youtu.be/nU5-XBrCRXI
Via YouTube Channel