The first Spartan mission is documented. The Spartan program, an outgrowth of a joint Naval Research Laboratory (NRL)/National Aeronautics and Space Administration (NASA)-Goddard Space Flight Center (GSFC) development effort, was instituted by NASA for launching autonomous, recoverable payloads from the Space Shuttle. These payloads have a precise pointing system and are intended to support a wide range of space-science observations and experiments. The first Spartan, carrying an NRL X-ray astronomy instrument, was launched by the orbiter Discovery (STS51G) on June 20, 1985 and recovered successfully 45 h later, on June 22. During this period, Spartan 1 conducted a preprogrammed series of observations of two X-ray sources: the Perseus cluster of galaxies and the center of our galaxy. The mission was successful from both on engineering and a scientific viewpoint. Only one problem was encountered, the attitude control system (ACS) shut down earlier than planned because of high attitude control system gas consumption. A preplanned emergency mode then placed Spartan 1 into a stable, safe condition and allowed a safe recovery. The events are described of the mission and presents X-ray maps of the two observed sources, which were produced from the flight data.


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    Titel :

    The Spartan 1 mission


    Beteiligte:
    Cruddace, R. G. (Autor:in) / Brandenstein, D. C. (Autor:in) / Creighton, J. O. (Autor:in) / Gutschewski, G. (Autor:in) / Lucid, S. W. (Autor:in) / Nagel, S. R. (Autor:in) / Fabian, J. M. (Autor:in) / Fenimore, E. E. (Autor:in) / Shrewsberry, D. J. (Autor:in) / Zimmermann, D. (Autor:in)


    Erscheinungsdatum :

    01.05.1990



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Spartan 1 Mission

    R. G. Cruddace / G. G. Fritz / D. J. Shrewsberry et al. | NTIS | 1989


    The Spartan 1 mission

    Cruddace, Raymond G. / Fritz, G. G. / Shrewsberry, D. J. et al. | NTRS | 1989


    Spartan

    Engineering Index Backfile | 1930


    Spartan "Cruiser"

    Engineering Index Backfile | 1932


    Spartan "Cruiser"

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