In this paper, several attitude estimation designs are developed for the Tropical Rainfall Measurement Mission (TRMM) spacecraft. A contingency attitude determination mode is required in the event of a primary sensor failure. The final design utilizes a full sixth-order Kalman filter. However, due to initial software concerns, the need to investigate simpler designs was required. The algorithms presented in this paper can be utilized in place of a full Kalman filter, and require less computational burden. These algorithms are based on filtered deterministic approaches and simplified Kalman filter approaches. Comparative performances of all designs are shown by simulating the TRMM spacecraft in mission mode. Comparisons of the simulation results indicate that comparable accuracy with respect to a full Kalman filter design is possible.


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    Contingency designs for attitude determination of TRMM

    Crassidis, John L. / Andrews, Stephen F. / Markley, F. Landis et al. | NTRS | 1995


    Contingency Designs for Attitude Determination of TRMM

    Crassidis, J. / Andrews, S. / Markley, F. et al. | British Library Conference Proceedings | 1995


    TRMM On Orbit Attitude Control System Performance

    B. Robertson / S. Placanica / W. Morgenstern | NTIS | 1999



    TRMM On Orbit Attitude Control System Performance

    Robertson, Brent / Placanica, Sam / Morgenstern, Wendy | NTRS | 1999