6/27/2013 - VANDENBERG AIR FORCE BASE, Calif. – A L-1011 “Stargazer” carrier aircraft and its lead plane prepare for take-off at the base flightline here Thursday, June 27, 2013. The launch of an Orbital Sciences Corporation Pegasus XL rocket launched from the “Stargazer” carrier aircraft off the coast of Monterey Bay. (U.S. Air Force photo/Senior Airman Lael Huss)

6/27/2013 - VANDENBERG AIR FORCE BASE, Calif. – A L-1011 “Stargazer” carrier aircraft carrying an Orbital Sciences Corporation Pegasus XL rocket takes off at the base flightline here Thursday, June 27, 2013. The launch of a Pegasus XL rocket launched from the “Stargazer” carrier aircraft off the coast of Monterey Bay. (U.S. Air Force photo/Senior Airman Lael Huss)

6/27/2013 - VANDENBERG AIR FORCE BASE, Calif. – An Orbital Sciences Corporation Pegasus XL rocket attached to the underbelly of an L-1011 “Stargazer” carrier aircraft takes off at the base flightline here Thursday, June 27, 2013. The launch of a Pegasus XL rocket launched from the “Stargazer” carrier aircraft off the coast of Monterey Bay. (U.S. Air Force photo/Senior Airman Lael Huss)

6/27/2013 - VANDENBERG AIR FORCE BASE, Calif. – A L-1011 “Stargazer” carrier aircraft carrying an Orbital Sciences Corporation Pegasus XL rocket flies off the base flightline here Thursday, June 27, 2013. The launch of a Pegasus XL rocket launched from the “Stargazer” carrier aircraft off the coast of Monterey Bay. (U.S. Air Force photo/Senior Airman Lael Huss)

6/27/2013 - VANDENBERG AIR FORCE BASE, Calif. – A L-1011 “Stargazer” carrier aircraft and its lead plane turn toward Monterey Bay after take-off at the base flightline here Thursday, June 27, 2013. The launch of an Orbital Sciences Corporation Pegasus XL rocket launched from the “Stargazer” carrier aircraft off the coast of Monterey Bay. (U.S. Air Force photo/Senior Airman Lael Huss)