Rocket Lab USA, Inc., formerly Vector Acquisition Corp, is an aerospace company. It designs and manufactures small and medium-class rockets, satellite spacecraft components, satellites and other spacecraft to support the space economy. Its satellite and other spacecraft components include reaction wheels, star trackers, magnetic torque rods and batteries. It provides engine and avionics manufacturing, business and corporate development, sales and marketing, and corporate planning and financial management. It researches, designs, and fabricates rocket systems, incorporating propulsion, vehicle launch and electronic control systems. Its segments include Launch Services and Space Systems. Its Launch Services offers launch services to customer on a mission or ride share basis. The Space Systems consists of space engineering, program management, satellite components, spacecraft manufacturing and mission operations. It also offers space solar power products and aerospace structures.