STP-3: ULA successfully launches Atlas V

December 7, 2021

A United Launch Alliance (ULA) Atlas V rocket carrying the Space Test Program (STP)-3 mission for the U.S. Space Force’s Space Systems Command lifted off on Dec. 7 at 5:19 a.m. EST from Space Launch Complex-41 at Cape Canaveral Space Force Station. To date ULA has launched 147 times with 100 percent mission success. STP-3 marked ULA’s longest duration mission at seven hours and 10 minutes until spacecraft separation.

“Today’s launch is a testament to why the ULA team continually serves as our nation’s most reliable and successful launch provider for our country’s most critical space assets,” said Gary Wentz, ULA vice president of Government and Commercial Programs. “Thank you to our U.S. Space Force, NASA and industry teammates for their tremendous partnership in successfully delivering STP-3 to orbit.”

Atlas V STP-3 Launch Blog