A common theme in discussions of the Microwave Anisotropy Probe (MAP) is the attainment of mission goals for minimal cost. One area of cost savings was a reduction in the fuel budget required. To reach orbit around the L2 notation point of the Earth-Sun system, the MAP spacecraft was guided very close to the Moon, allowing a gravity-assisted trajectory out to L2. In order to property time the lunar swing-by, MAP followed a trajectory of three-and-a-half highly elliptical phasing loops. At each perigee of this trajectory MAP executed a thruster maneuver to increase orbit velocity; maneuvers were required at one or both clothe first two perigees (called P1 and P2) and at the third and final perigee (P-final). The preference was for successful maneuvers at all three perigees because this scheme provided a small, additional fuel savings.


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    Titel :

    Anomalous External Force on the MAP Spacecraft


    Beteiligte:
    S. R. Starin (Autor:in) / P. M. Bay (Autor:in) / E. J. Wollack (Autor:in) / D. R. Fink (Autor:in) / D. K. Ward (Autor:in)

    Erscheinungsdatum :

    2002


    Format / Umfang :

    4 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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    Starin, Scott R. / Bay, P. Michael / Wollack, Edward J. et al. | NTRS | 2002


    Anomalous Force on the Map Spacecraft

    S. R. Starin / J. R. ODonnell / D. K. Ward et al. | NTIS | 2002


    An Anomalous Force on the Map Spacecraft

    Starin, Scott R. / ODonnell, James R., Jr. / Ward, David K. et al. | NTRS | 2002


    An Anomalous Force on the MAP Spacecraft

    Starin, Scott / O'Donnell, James / Ward, David et al. | AIAA | 2002


    AIAA-2002-4581 An Anomalous Force on the MAP Spacecraft

    Starin, S. / Bay, P. / Fink, D. et al. | British Library Conference Proceedings | 2002