DULLES, Va.--(BUSINESS WIRE)--Orbital ATK, Inc. (NYSE: OA), a global leader in aerospace and defense technologies, today announced that the SKY MEXICO-1 (SKYM-1) satellite, built by the company for DIRECTV, was successfully delivered to orbit aboard an Ariane 5 rocket and is operating as planned early in its mission. The lift-off of the Ariane rocket occurred today as planned at 5:15 p.m. (EDT) from the launch site in Kourou, French Guiana. The satellite successfully separated from the launcher