The Astro-1 Observatory mission

This paper describes the NASA's Astro-1 Observatory mission. The three ultraviolet (UV) telescopes and one X-ray telescope that make up this Spacelab mission will observe objects in the solar system, including comets and the outer planets, objects within the Milky Way Galaxy, and high-energy extragalactic objects such as quasi-stellar objects and active galaxies. While briefly discussing the science objectives of the mission, the paper focuses on the history of the mission, the Spacelab hardware assembled by the George C. Marshall Space Flight Center (MSFC) to carry the telescopes into orbit, and the complexities of the systems supporting that payload. Also discussed are the dimensions and capabilities of the Hopkins Ultraviolet Telescope, the Ultraviolet Imaging Telescope, the Wisconsin Ultraviolet Photopolarimeter Experiment, and the Broad Band X-Ray Telescope, all of which will coobserve a number of targets to generate comprehensive data in both the ultraviolet and X-ray ranges of the spectrum. The Astro-1 mission operations are described, and the cooperative functions of other NASA centers are reported.