[Delta II] Delta II Rocket Assembly Highlights for OCO-2 Mission

See how the Delta II rocket was assembled at Space Launch Complex 2W, Vandenberg Air Force Base California for NASA's Orbiting Carbon Observatory (OCO) -2 mission. This will be the 152nd launch of a Delta II and the first since 2011 due to a recent purchase of 4 of the 5 remaining Delta II rockets by NASA.